FC&A November 2012 Supplement

Supplement

HVAC / HVP

Supplement - November 2012 www.fca-magazine.com

HVAC/HVP Mixed Media Information Barham Court, Teston, Maidstone, Kent, ME18 5BZ Tel: 01622 232702, Fax: 01622 816874 www.fca-magazine.com www.mixedmediainfo.com

Editor Hannah Frackiewicz hannah@mixedmediainfo.com 01622 232702 Managing Director Sam Ball sam@mixedmediainfo.com 01622 232702 Publication Manager Steve Gull steve@mixedmediainfo.com Account Executive Adam Barron adam@mixedmediainfo.com Design & Production Chris Lilly chris@mixedmediainfo.com Accounts Simone Jones simone@mixedmediainfo.com Terms and Conditons:

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Welcome ...to our HVAC & HVP special

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he technological advances in HVAC products have accelerated over recent years, and with the added focus on reducing carbon footprint these systems have had to comply. However choosing the right system to suit your requirements and budget may not always be an easy step to take. With FC&A’s dedicated supplement, we hope to provide you with a useful reference in order to help you make informed choices.

With contributions from leading manufacturers, suppliers and exclusive distributors including Nu-Heat, Space Air and Daikin, we uncover how Government legislation, the renewables market and sustainability are all having an impact on these HVAC systems. With a ‘one size fits all’ solution no longer the case, tailored or high specification models are now widely available offering energy efficiencies and cost benefits across all applications.

We hope you enjoy this special focus and find it an enjoyable read. For further enquiries about any of our contributions or if you wish to comment on a particular issue affecting the HVAC sector, please do not hesitate to get in touch.

Hannah Frackiewicz Hannah Frackiewicz Editor, Future Constructor & Architect

Contents 5 7 8

Renewable boost:

Jigsaw FM rates the use of a Rinnai continuous flow condensing gas water heater as a booster for solar thermal heating.

High score:

Housing scheme achieves highest the CfSH level, contributed to by the installation of two Windhager biomass boilers.

Design integration:

Nu-Heat Underfloor & Renewables takes FC&A through its recent product portfolio offering efficient alternatives.

10 Cool replacement:

Space Air unveils how it can help assist with the replacement strategy for existing systems operating with HCFC R22 refrigerant.

15 Efficient operation: Solar PV company Enfinity UK more than doubled its target last year, in its first year of UK trading, supplying some 6.5MW of solar PV systems. The Enfinity Group is European market leader and top ten player globally.

No longer a ‘one size fits all’ market, heat pumps are practical and efficient for new build and refurbishments. Daikin UK reveals how they can apply.

18 Legal & Business:

To comply with the recent pension reforms, why not consider using an HVAC pension supplier? Welplan, a subsidiary of the Building & Engineering Services Association, explains how.

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Fitting into the renewables jigsaw Jigsaw FM, based in Cheshire, specialises in designing and installing energy efficient heating and cooling solutions for the commercial sector. According to Richard Percival, Director of Jigsaw FM, anyone who uses hot water should be looking at solar thermal water heating with a Rinnai continuous flow condensing gas water heater as a booster.

Chester where the new solar hot water system has reduced gas consumption by 70%. Percival goes on to explain that the existing 30-year-old boiler was totally inefficient and was literally burning money.

“The solar thermal/Rinnai system went in with minimum fuss and the customer is still using the same amount of hot water but now at one third of the previous cost,” adds Richard.

Jigsaw FM has just installed another similar system using one Rinnai 1200i unit in Chester for a fragrance manufacturer as well as one at another corporate headquarters in Flintshire.

After 20 years working in the industry with hands on experience as a gas engineer

with British Gas and latterly as Sales Director of a heating company Percival set up Jigsaw FM with his wife Jane and now employs six engineers and four admin staff.

In the five years since Richard set up the company, things have been going from good to even better with Jigsaw FM is growing despite all the current gloom and doom.

Good reactions

“We work for a wide cross section of commercial operations, and have found that every company has somebody who is in charge of carbon reduction.We go and see them and more often than not they just hand you the file and ask ‘How do we achieve this?’

According to Richard: “Renewables are the way forward and over the next six months or so we have plenty more projects earmarked for the Rinnai treatment. Of course, it would work equally well as a booster for a heat pump system but it is all about payback and you are going to get that quicker with a solar thermal system.”

He is also impressed by how simple the Rinnai units are to handle. “Their size is tiny but they are extremely robust and they couldn’t be easier to install. Even the controls are simplicity itself. Even if you are going to use them solely as a water heater or feed a secondary return to maintain temperature with a boiler, they react immediately saving both money and energy.”

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igsaw FM prides itself on offering a unique combination of service expertise from design, installation and maintenance of renewable energy solutions, to finding the correct systems for clients helping them to make better use of energy and reduce environmental impact.

The company has been involved in many solar thermal projects since its inception five years ago. However, its relationship with Rinnai is comparatively recent. “We first came across Rinnai just six months ago after we were introduced to Rinnai’s condensing range. It quickly became clear that these units are the ideal energy efficient temperature booster for a solar thermal installation,” says Richard.

“Basically, we feed the thermal store from the solar panels and then direct the pre-heated water through the Rinnai (in this case the Infinity HDC 1200i) which will only fire if the water from the store is not up to temperature.We have already installed this system at six different sites in a short space of time.

Richard continues: “I am so impressed with Rinnai’s condensing water heaters that I have put the system into our own brand new premises and we are using it to showcase what a solar thermal hot water system can do. At the same time we are monitoring the system – flow, temperature, water consumption – so we an give potential customers a breakdown of the sort of savings they can expect.”

The best performing installation Jigsaw FM has undertaken so far was at a site in

Rinnai’s condensing units are the ideal energy efficient temperature booster for a solar thermal installation

info@rinnaiuk.com

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supporting the employer Online Enquiry 129

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HVAC/HVP

Radian scheme reaches Level 6 with Windhager

One of the country’s first Code For Sustainable Homes Level 6 affordable housing schemes has utilised Windhager twin biomass boilers in a district heating scheme to help them achieve the highest score available under the code.

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toneham Green near Southampton is an innovative development by Radian of eleven two- and threebedroom homes.The homes which are all for rent are occupied by young families, who were previously overcrowded, to retired couples downsizing to a smaller property. The scheme was formally opened

by Kevin McCloud in May and has been shortlisted for eight separate sustainable housing awards.To reach Code Level 6, the architects have designed the properties to be airtight, with high levels of insulation and many sustainable features including low water use, roofs designed to maximise solar PV energy collection, and biomass heating.

Radian Group opted for a bespoke district heating system based around two 26kW Windhager BioWIN biomass boilers located in one central BioCABIN which is a pre-packaged plant room. Roughly the same size as a single garage, the BioCABIN also houses a hopper for up to nine months’ wood pellets, together with a 700l

thermal store which feeds all eleven homes.

Commenting on the biomass heating system, Gavin Board, Senior Project Manager at Radian says: “In conjunction with our energy advisor we undertook a lot of research to find the most reliable and cost efficient system for our residents.We selected the Windhager biomass boilers for their reputation in the industry and its long track record in providing district heating systems on the continent.The system works really well and all of us including the tenants are very impressed with its efficiency and reliability.”

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All the properties at Stoneham Green are fitted with an ‘energy dashboard’ located in the hallway which gives residents the benefit of seeing such things as energy saving and billing

provide a 52kW cascade system which with its modulating operation ensures an excellent energy saving. Using just 30% of its capacity or above, BioWIN supplies just the right amount of energy where and when required. Also maintenance work can be carried out easily without having to shut down the full system.The installation features Windhager’s 8 probe suction system in the hopper for the automatic feeding of wood pellets to the boilers.

The Windhager BioCABIN is manufactured off-site to contain the BioWIN wood pellet boiler. It is a complete package including a pellet boiler, buffer tank, pressure units, plate heat exchangers, expansion vessels and heat meters.The BioCABIN is an innovative turn-key solution designed to minimise construction time and installation costs on site. It is simply craned into position for immediate connection to the on-site services of heating distribution pipes, water services and electrics prior to final commissioning.

The system is installed with an MES Control system (Modular Energy System), an intelligent, systematic control solution that fully integrates with the BioWIN for optimum production and distribution of heat.The additional technology of the MES offers a series of functions which enable the heat and hot water demands to be accommodated depending on requirements for maximum operating convenience and constant comfort.

Windhager’s BioWIN boiler is compact, fully automatic, with high levels of efficiency.

It has fully automatic pellet feed, fully automatic ash removal and cleaning, and an optimised pellet burner.

enquiries@windhager.co.uk 130

Monitoring usage

All the properties at Stoneham Green are fitted with an ‘energy dashboard’ located in the hallway which gives residents the benefit of seeing such things as energy saving and billing. Gavin Board of Radian explains:“It’s a great encouragement to greener living as residents can see how much energy they are using and they only pay for what they use.”

The two BioWIN 26kW biomass boilers

Radian Group opted for a bespoke district heating system based around two 26kW Windhager BioWIN biomass boilers located in one central BioCABIN

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HVAC/HVP

SDC Construction development of Talbot Way for North Hertfordshire Homes

Tailored solutions for properties

In 2012, Nu-Heat Underfloor & Renewables celebrated 20 years in business.

The company was one of the first to make underfloor heating widely available in the UK and has since become an expert with the integration of UFH with solar thermal and heat pumps, as well as traditional boilers.

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u-Heat has earned a reputation for first-rate design skills based on a solid understanding of the products, a commitment to product development and the creation of design software programmes. Here we look at some of the solutions that Nu-Heat has conceived in recent years.

Renewable solutions for well-insulated, smaller homes have been facilitated through the introduction of appropriate products such as Hitachi’s Yutaki-M single fan air source heat pump.This can achieve an output of 8.2kW at typical UK design temperatures of -3°C outside temperature and +45°C heating flow temperature.The single fan unit offers an efficient option, with a CoP of 4.43 (at A7/W45) and a typical seasonal performance factor of between 2.5 and 3.5.The unit is only 800mm in height and is around 40% smaller than the twin fan model.

Nu-Heat has developed a range of

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complementary compact hot water cylinders designed to contribute to high efficiency levels when used with the singlefan heat pump.The EnergyMaster HP 215 has a 215 litre capacity and is sized to sit on top of a 100 litre buffer tank within a relatively compact space.The EnergyMaster HP 255S cylinder is a solar version, being larger to incorporate sufficient dedicated volume around the solar coil at the bottom of the cylinder.The solar volume has been designed for a single solar in-roof panel system.

Meeting demand

Nu-Heat’s single panel solar thermal option for a smaller home uses the larger of the two panels in the range, with approximately 15% more output than the smaller panel.

Where the household uses about 100 litres of hot water daily at 50°C this 2.52m2 panel, the same width but slightly taller than the 2.18m2 panel, is likely to produce an average

of half of the annual demand, with around 90% of the demand met in July and 10% in December.

An example of a larger-scale Nu-Heat designed scheme is part of a development

by SDC Construction, designed by Thompson Cole Architects for North Hertfordshire Homes. Of the 60 homes, the heating system for the 18 private houses incorporates Nu-Heat’s solar thermal for hot water, and for the 42 social housing apartments Nu-Heat has designed and supplied an integrated system comprising underfloor heating (UFH), air source heat pumps (ASHP) and solar thermal controlled via a series of building management systems.

This specification meets the CfSH Level 4.

In total there are nine Stiebel Eltron 12kW ASHP sited externally in the communal stairwells, serving four to five apartments each.The plant rooms are located under the stairs and house the buffer tanks, pumps and building

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HVAC/HVP

Screed awareness

The underfloor heating uses Nu-Heat’s Cliptrack, ideal when a floor is to be screeded. The edge insulation was fitted around the timber plates that are to form the internal walls, stopping the timber drawing the moisture out of the lime screed too quickly when it is laid and providing the necessary expansion gap around the edge of the screed.The insulation has also been fitted around the external walls to help reduce heat loss.

For older properties that are being renovated, Nu-Heat’s new floor construction LoPro10, with one of the lowest profiles currently available, offers a practical solution for retrofitting warm water UFH. LoPro10 can be fitted on top of the existing floor deck, with a height build-up of just 15mm plus tile, wood or carpet floor finish. LoPro10 can be overlaid with 4-6mm ply or equivalent for direct carpeting. Engineered hardwood/ laminate floors can be ‘floated’ directly over the panel.Tiles can be laid directly on

Nu-Heat’s low profile floor construction, LoPro10, over screed

to the dense rigid gypsum board with no requirement for a ply layer.

The panels are of a composite gypsum construction giving low thermal resistance and high-density properties that provide high thermal output compared to similar low height plywood and chipboard based systems. LoPro10 also has one-third less thermal mass than a screed floor, allowing it to heat up and cool down rapidly.

Response times in comparable, nongypsum based products are slower due either to use of a thicker board or a board that is a poor heat conductor.

To help meet Building Regulations Part E acoustic criteria, LoPro10 provides airborne acoustic reduction on timber upper floors by adding mass – 15.5kg/m².

marketing@nu-heat.co.uk

This also means that it feels more solid underfoot than many lightweight floating floors.

A condensing boiler is an ideal partner for UFH due to the lower flow temperatures required.The potential improvements to energy efficiency and energy bills offered by new condensing boilers are not always reached with traditional emitters. LoPro10, however, maximises these benefits because of the lower flow temperatures needed for underfloor heating.Where radiators are sized traditionally to a design flow temperature of 70/80°C, which is outside of a condensing boiler’s range, UFH, requiring a flow temperature of 50°C flow and 40°C return is extremely efficient.

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management system (BMS).The BMS removes the need for any interaction between the tenants and the heat pump controls, ensuring that the ASHP remain in perfect set up mode.The BMS, which includes heat metering and heat pump performance, is being linked back to NuHeat’s offices for monitoring purposes.

Nu-Heat designed the heating system for an eco-house in Suffolk that is being built as a well-insulated property – but with straw bales instead of concrete.The bales have been placed behind a lightweight timber frame, rendered with clay and externally clad with cedar boards.The ground floor is a limecrete slab with lime screed and the roof is constructed from corrugated aluminium sheets.

A ground source heat pump has been integrated with underfloor heating to heat the ground floor, with hot water supplied by solar thermal panels.There is no heating upstairs, apart from the towel rails in the bathrooms, and a mechanical ventilation heat recovery system is being used to redistribute heat around the house.

Nu-Heat designed the ground source system around a NIBE 1145 8 kW heat pump, with a 360 litre stainless steel solar EnergyMaster HP cylinder and a 200 litre buffer tank.The design included 400m of ground loop in trenches 1.2m deep.

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Hitachi’s Yutaki-M single fan air source heat pump

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HVAC/HVP

It is important that end-users are able to make well-informed and timely decisions when electing to replace their existing air conditioning systems

Space Air offers replacement strategies

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ccording to recent surveys, there remains a huge volume of R22 refrigerant in circulation indicating that many systems are still in active use. The use of HCFCs was banned in the manufacture of new equipment in all refrigeration and air conditioning applications from 1st January 2001 except for temporary exemptions: The ban was delayed until 1st July 2002 for fixed air conditioning equipment with a cooling capacity of less than 100kW. The ban was also delayed until 1st January 2004 for reversible air conditioning heat pump systems.

A ban on the use of virgin HCFCs has applied since 1st January 2010 and a ban on the use of all HCFCs, including recycled materials is effective from 1st January 2015.

HCFC R22 was, for some six decades,

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the most widely used refrigerant in air conditioning, heat pump and refrigeration equipment, however, due to its chlorine content, it was classified as an ozone depleting substance and so became the subject of a global phase out programme that was accelerated in Europe under the European Community (EC) Regulation No. 2037/2000.

The regulation was re-cast in 2009 under EC 1005-2009 introducing new controls including leak check and logging requirements aligned with the F Gas Regulation.

With the manufacture of air conditioning, heat pump and refrigeration equipment designed to use HCFC R22 (for the European market) being finally prohibited in 2004, a number of major players ceased production well ahead of the deadlines.

As a result this equipment has been classified as obsolete and components to enable repairs can already be difficult and expensive to source. Replacement is now the only cost effective long-term option.

Coupled with the Energy Performance

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The fact that in Europe the use of the Hydrochlorofluorocarbon (HCFC) refrigerant R22 will be completely banned in just over two years from now has been widely publicised since the late 1990s. The manufacture of equipment designed to contain R22 was officially phased out between 2000 and 2004 – so it seems inconceivable that anyone still operating such equipment would be unaware that it could very soon become unserviceable – by law!

w e p ro t e c t o u r g re a t e s t a s s e t s ...our customers

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today compared with that required when the system was originally installed.

A recent study showed in many cases that, £1 per kW, modern day equipment is in fact cheaper to purchase, albeit installation costs have risen. A number of manufacturers, including Daikin Industries, have countered this by introducing systems that can enable existing pipework to be retained, reducing installation costs and site disruption.

There is a much wider choice of indoor fan coil unit options today, including those with self-cleaning filters, which reduce both operating, and maintenance costs.

With the wider choice of fan coil units also come reduced noise&levels and : Medium Effic Supply Extract improved aesthetics.

Energy Consumption / Savings Carbo Space Air offers assistance with the planning process and replacement One of the most important cost strategy for existing systems operating with HCFC R22 refrigerant benefits in replacing R22 based equipment and systems will be measured in life cycle in Buildings Directive and other legislation can represent very substantial investment. terms.The maintenance of R2214801 systems designed to reduce the environmental With this in mind, Space Air can detail 15716 16 kWh kWh Tonn will already be prohibitive; availability impact of our commercial buildings, the a number of replacement options for of critical and non-critical components need for building owner/operators to consideration and offer information on the is extending down times and risking show their green credentials by acting various practical and financial advantages complete failure. on environmental responsibilities has of a replacement strategy, ahead of the never been greater. In this respect there The life expectancy legislated deadlines, by which time supply Supplyof&modern Extract day : High Efficienc Supplyto & escalate.

Extract : Medium Efficiency Heat Recovery up to 70% are definite benefits to be gained from systems is generally longer, the efficiency and install costs are expected Energy Consumption / Savings Carb replacing R22 based equipment quite apart better,Carbon the refrigerant volume andRunning costsCost / Savings Among the main benefits Energyoffered Consumption / Savings Usage / Savings from the inescapable fact that it really must are lower, with self diagnostics and more by today’s alternatives to R22 based 5700 5 Ton be replaced sooner rather than later. reliability, maintenancekWh requirements are equipment include: simplified and generally cheaper.

Much greater energy efficiency and 24817 15716 16.2 14801 £4,561 kWh £4,714 15.8 However toughTonnes it is in the present Fulfilling obligations thereby reduced operating costs.

As a kWh kWh Tonnes economic climate to contemplate investing guide, the energy efficiency of a current As Daikin Distributors since 1980, in new air conditioning, refrigeration or R410A based Daikin VRV system has an Space Air believes that it shares these heat pump equipment, anything designed operating efficiency approaching twice that environmental responsibilities and it has to operate with R22 is, in any event, of an R22 based system installed in 2000, continually invested time and effort to Supply & Extract Efficiency Heat Recovery Unitsand up to 95% the end of its useful add to this the more sophisticated control: Highapproaching raise awareness of current and imminent Consumption Cost /Savings life.There months platforms available today,Energy compared to/aSavings serviceable legal obligations affecting air conditioning, Carbon Usage /Savingsare only 26 Running to a complete ban on the use of R22 for decade or more ago, and the operator will heat pump and refrigeration equipment 5700 servicing 5.9 purposes, yes, if it still works the enjoy a far shorter payback period. installations. Space Air offers assistance kWh Tonnes £1,710 equipment can still be operated legally – with the planning process and replacement Current equivalent capacity output £7,565 but for how long 26.1 and what expense and strategy for existing systems operating systems in many cases have significantly 24817 kWh Tonnes cost to the user and environment? with HCFC R22 refrigerant and advise reduced footprints which offer great Mike Nankivell M.Inst.R. is Marketing on all environmentally acceptable, energy opportunities to either free up useful plant Director for Space Air. Mike is also efficient alternatives available from Daikin’s space or, to enable the available capacity to President of HEVAC and Vice President extensive and world leading range. be increased, which may well be necessary of the HPA. It is important that end-users are able to according to the demands of the building make well-informed and timely decisions when electing to replace their existing air 133 conditioning systems, which in some cases marketing@spaceair.co.uk

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ENERGY EXPERTISE ENVIRONMENT

HVAC/HVP

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HVAC/HVP

The wide range of products on the market can differ significantly and it is important to pick the right system to suit each project’s needs

Air-to-water heat pumps are an efficient and practical solution for providing heating and hot water in both new build and refurbished housing, says Nancy Jonsson, Product Manager, heating and renewables, for Daikin UK.

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he benefits of air-to-water heat pumps are now widely understood: they are a highly energy efficient solution for both new build housing and refurbishments that can reduce carbon emissions by up to 50% and have much lower running costs – especially in off-gas areas when compared with traditional heating systems.

Unlike other renewable heat technologies, air-to-water heat pumps do not require extensive groundwork, nor space for storage and deliveries.

Installation costs are comparable to other heating systems, requiring no gas supply, flues or ventilation.

But advances in technology mean it is no longer the case of “one size fits all” when it comes to air-to-water heat pumps. The wide range of products on

the market can differ significantly and it is important to pick the right system to suit each project’s needs.

For a start, there are split and monobloc ranges, high temperature and low temperature systems and specialist heat pumps designed for multi-occupancy buildings or commercial applications.

For new build homes or where heat emitters are being replaced, low temperature air-to-water heat pumps are ideal because they operate most efficiently when generating low flow temperatures. Underfloor heating systems can be designed to operate with flow temperatures as low as 35°C; heat pump convectors are also designed to operate at similar low flow temperatures and low temperature radiators typically require 45°C.

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Specifying the right tool

There are two types of low temperature system available: split systems, where the outdoor unit requires an indoor unit; and monobloc systems, which do not require an indoor unit or hydrobox.

Split systems are the most versatile of all heat pump systems, offering efficiencies of more than 300%. They are available in a wide range of capacities to suit every size of home, providing maximum installation flexibility.

Depending on the size, the outdoor unit is able to be situated up to 70m away from the property, making them ideal where aesthetics are of paramount importance, or for larger properties.

Where internal space is at a premium, or where smaller capacities are required, a monobloc system may be better suited. Lower capacity

Split systems are the most versatile of all heat pump systems, offering efficiencies of more than 300%

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HVAC/HVP Altherma LT Split 6kW air-to-water heat pumps to DGHP’s 85 homes in the village.

As part of the project, Daikin committed to working with DGHP and SGCE to deliver a programme of training for installers and engineers to ensure they understood not only the installation process itself, but also the surrounding concepts of heat pump best practice.

This also meant they could engage with tenants to ensure they understood the implications of the new system and how to get the best from it.

The perfect choice

After extensive surveying and heat load testing, DGHP and Scottish Gas Community Energy (SGCE) concluded that the best solution provider was Daikin

monoblocs (6kW and 8kW) are particularly suitable for smaller properties and are designed specifically for the UK housing sector, targeting fuel poor, off-gas properties.

On a recent project in Dumfries and Galloway, south west Scotland, Daikin Altherma Low Temperature Split 6kW air-to-water heat pumps were installed in 85 homes in one village to improve the lives of social housing tenants.

Tailored measures

The village of Whithorn is in an off-gas area, with homes heated by electric storage heaters or open fires and backboilers. These appliances are relatively inflexible and often do not heat up the fabric of a home sufficiently. Damp and condensation can also be an issue, as is storage and delivery of fuels.

Dumfries and Galloway Housing Partnership (DGHP) is a social landlord that owns and maintains more than 10,200 homes across Dumfries and Galloway, including properties in Whithorn. DGHP aims to improve energy efficiency standards and reduce fuel bills in its properties, providing a package of energy efficiency measures

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best suited to each individual home.

Given Whithorn’s rural location, it was clear that renewable energy technologies were a better alternative to fossil fuel systems as they would provide tenants with the most energy efficient systems, thus reducing environmental impact and cutting fuel bills too.

After extensive surveying and heat load testing, DGHP and Scottish Gas Community Energy (SGCE) concluded that the best solution was to fit Daikin

On a recent project in Dumfries and Galloway, south west Scotland, Daikin Altherma Low Temperature Split 6kW air-to-water heat pumps were installed in 85 homes

It is also worth bearing in mind that almost 30% of the UK’s housing stock was built before 1944 and is classed as being ‘hard to heat’ – having solid walls, high ceilings and poor thermal design.

In these properties, particularly where existing heat emitters are being retained, a high temperature system could be a better option.

Several years ago, when most air-towater heat pumps were only capable of providing flow temperatures of up to 55°C, it was undoubtedly the case that heat pumps were most suited to new builds. But the introduction of a new generation of heat pumps, such as the Daikin Altherma HT system (which is able to provide flow temperatures of up to 80°C, without an additional immersion heater), can be suitable as direct replacements for traditional boiler systems.

The Daikin Altherma HT system was the perfect choice when the owner of a renovated 16th Century farmhouse in Nottinghamshire wanted to upgrade its heating system.

Mark Burton, Development Manager for installer E2 Environmental Engineering, had carried out most of the renovation himself, which included installing an oil-fired boiler for the heating system. However, he realised this was not able to cope with the heating demands of the farmhouse after he installed underfloor heating throughout the ground floor and standard radiators on the upper floor.

Renewable energy was the sustainable and cost-effective solution for this off-gas property and Burton installed two size 16 Daikin Altherma HT systems. The indoor units sit in the utility room and the

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HVAC/HVP

outdoor units are positioned discretely over 30m away on a nearby barn.

For multi-occupancy buildings such as apartments or high density housing, a system such as the Daikin Altherma Flex Type may be better. It allows independent control and billing of heating and hot water systems within each individual home, with the whole building system powered from community-based outdoor units, each of which can serve up to ten individual dwellings. This unique system includes individual hot water cylinders for each property, as well as offering optional cooling through heat recovery technology.

Air-to-water heat pumps are clearly an excellent alternative to traditional heating and hot water systems in both new build and refurbished housing. But like any relatively new technology, it is vital both for public reassurance and the industry’s reputation that any given installation is going to meet the highest standards.

MCS certification

For multi-occupancy buildings such as apartments or high density housing, a system such as the Daikin Altherma Flex Type may be better

1st December 2011 air-to-water heat pumps have not required planning permission if installed on domestic premises including houses and flats.

However, they must be sited in specific locations, no nearer than 1m from the

property boundary, meet noise criteria and be installed to MCS standard.

MCS is also mandatory for an installation to qualify for Government funding such as the Renewable Heat Premium Payment (RHPP) scheme run by the Energy Saving Trust. The scheme, which has just entered its second phase, offers grants to private developers and homeowners installing renewable energy systems such as air-to-water heat pumps by 31 March 2013. There is also a competition for social landlords, who can apply for a grant of up to £175,000 for a project. Up to £10m is available for projects completed by 31st March 2013.

So, whether installed simply to replace a boiler for use with existing radiators, or for a full refurbishment incorporating new energy efficient heat emitters such as underfloor heating and fan convectors, the new generation of heat pump systems are an ideal green solution for refurbishing older, hard to heat homes, as well as new build properties.

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Choosing an installer with Microgeneration Certification Scheme (MCS) accreditation helps to ensure that installations will achieve the highest efficiencies and gives assurances that they will meet rigorous and consistent government standards.

MCS certification is needed to meet planning requirements in England. Since

The Daikin Altherma HT system was the perfect choice when the owner of a renovated 16th Century farmhouse in Nottinghamshire wanted to upgrade its heating system.

heating@daikin.co.uk 136

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HVAC/HVP

Employers should not underestimate the administrative burden of complying with the Government’s pension reforms and should consider using a HVAC pension supplier.

A subsidiary company of the Building & Engineering Services Association (B&ES) and the preferred pension supplier for the H&V Operative National Agreement, Welplan Pensions would be the wise choice for HVAC businesses.

T

his October saw the implementation of the biggest change to UK workplace pensions in more than 100 years with the commencement of auto-enrolment.As part of the Pensions Act 2008, over the next five years, every employer in the HVAC sector must automatically enrol every eligible jobholder into a qualifying workplace pension scheme and make contributions.

Eligible jobholders include UK workers aged between 22 years old and state pension age who earn more than £8,105 a year.

Welplan Pensions has been providing holiday pay and welfare benefits to the HVAC industry since 1965 and providing workplace pensions for building services clientele since 1988.

In 2010, two years ahead of the Government’s reforms,Welplan was

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named the preferred pension supplier for the H&V Operative National Agreement.

Welplan Pensions is ideally positioned to assist businesses in the HVAC sector to meet their pension obligations; statutory obligations which should not be underestimated.

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A pension solution for building services

firms’ pensions survey, found fewer than 20% of the firms were aware of the details of auto-enrolment. Of those that were, 53% referred to it as complex, while 23% found it very complex.

The administration involved in businesses complying with the reforms, such as preparing for and implementing automatic enrolment to cover all eligible jobholders as and when they become eligible in an industry populated with contractors and part-timers, while keeping on top of ever changing goalposts, is extensive. Even employers that already auto-enrol staff may need different processes to comply with the legislation.

The Government’s National Employment Savings Trust (NEST) is designed to assist those companies looking for a qualifying scheme. However, other schemes, either run in-house or by another provider, may better suit businesses’ needs by fully managing the scheme and keeping abreast of changes. Some businesses may also be better off signing up to such a scheme sooner rather than later.

Welplan Pensions is a qualifying pension scheme that was established in 1988 to meet the particular requirements of the building services industry. As the preferred pension supplier for the H&V Operative National Agreement, it also meets the requirements of the new pension legislation.

Welplan Pensions offers a pension solution for your entire workforce by providing a company-wide pension scheme for operatives and clerical staff. It also takes care of automatic enrolment and re-enrolment with a tried and tested administration system, providing advice and support through a dedicated helpline.

In short, it could be the answer to your workplace pension needs.

Designed to assist

The pension reforms, which began in October for employers with 250,000 employees or more, will affect every company in the HVAC sector with one or more employees.

However, according to new research from the Association of Consulting Actuaries (ACA), 72% of smaller firms have still not budgeted for the cost of autoenrolment. A million challenges ahead, the first report from the ACA’s 2012 Smaller

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Online Enquiry 138

The complete kit –

integrated heating solutions from Nu-Heat

• Underfloor heating – extensions, multi-site, refurb and new-build • Heat pumps – MCS approved with compliance documentation • Solar thermal – MCS approved flat panel, in-roof or on-roof models • Rainwater harvesting – standard packs to meet CfSH requirements All available individually or as a fully designed and integrated system.

Award-winning manuals, MCS Handover Packs and User Guides.

Complete design service with full system design warranty.

Fast track ‘no obligation’ trade quotations.

www.nu-heat.co.uk/fc&asp0712

01404 549770 Online Enquiry 139

Nu-Heat

UNDERFLOOR & RENEWABLES