Next steps

Revise ZE home

Next steps

Theories and models have their place. It’s time now to test the theories and models in the real world. At FMI, we’re putting in place plans to build a timberfloored ZE home test house at one of our sites. We want to track construction costs and to measure the post-construction thermal performance and energy consumption of key appliances. We intend to follow the actual energy use, by source of demand, of an “average” Kiwi family over time, while also measuring the indoor environment they experience. We want to install solar panels and analyse the savings made by using the roof’s energy and by selling surplus back to the grid.

We believe the theory and the models have shown us it is worth this further investment in Zero Energy research in the lived world.

New Zealand homes - especially those situated in extreme climate areas - can benefit from a zero energy approach.

FMI Net Zero Home with Hot Water FMI Net Zero Home with Hot Water Heat Pump Technology Heat Pump Technology

Radiators for Efficient Space Heating Radiators for Efficient Space Heating

Central heating is achieved by utilising i-Life Central heating is achieved by utilising i-Life Radiators in each area of the home. Radiators in each area of the home.

When embarking on designing this 102m², energy efficient net zero home concept, FMI wanted to CONSULTANTS: AMENDMENTS: ARCHITE include a hot water system capable of providing CTS SCALE: 79 PREMIER AVE, POINT CHEVALIER, AUCKLAND simultaneous sanitary hot water and radiator heating *CHECK ALL DIMENSIONS ON SITE PRIOR TO COMMENCING WORK PH/FAX: 09 846 6377, EMAIL: alan.poor@xtra.co.nz that was also as energy-efficient and environmentally friendly as possible.

Minimal Carbon Footprint

From an environmental perspective, heat pump technology was chosen because traditional electric hot water heaters produce up to three times the amount of greenhouse gas compared to a low emission alternative such as a hot water heat pump. Instant gas hot water systems are even greater greenhouse gas contributors producing a staggering seven times more emissions compared to hot water heat pump technology.1

Next Generation Hot Water Heat Pump Technology

The Mitsubishi Electric Ecodan Packaged Hot Water System was chosen specifically because of its ability to combine heating the domestic hot water and central heating throughout the home all from the one outdoor unit. The heat load of this well insulated home is very low and only requires a maximum of 6kW of heat. The Ecodan 6kW Packaged System was chosen due to its high efficiency rating COP of 5 at an ambient temperature of 7°C. That’s 5kW of heat energy for every 1kW of electricity consumed!2

DRAWN BY: DATE:

ZERO ENERGY HOUSE AT: 5 TIMARU PLACE F.N.

FOR: WARREN LEWIS

When embarking on designing this 102m², energy ALAN POOR NORTH PERSPECTIVEefficient net zero home concept, FMI wanted to CONSULTANTS: AMENDMENTS: ARCHITE CHECKED BY: A.P.include a hot water system capable of providing CTS 79 PREMIER AVE, POINT CHEVALIER, AUCKLAND 6/08/2021 9:42:47 amSCALE: simultaneous sanitary hot water and radiator heating *CHECK ALL DIMENSIONS ON SITE PRIOR TO COMMENCING WORK PH/FAX: 09 846 6377, EMAIL: alan.poor@xtra.co.nz that was also as energy-efficient and environmentally friendly as possible.

Minimal Carbon Footprint

From an environmental perspective, heat pump technology was chosen because traditional electric hot water heaters produce up to three times the amount of greenhouse gas compared to a low emission alternative such as a hot water heat pump. Instant gas hot water systems are even greater greenhouse gas contributors producing a staggering seven times more emissions compared to hot water heat pump technology.1

Next Generation Hot Water Heat Pump Technology

The Mitsubishi Electric Ecodan Packaged Hot Water System was chosen specifically because of its ability to combine heating the domestic hot water and central heating throughout the home all from the one outdoor unit. The heat load of this well insulated home is very low and only requires a maximum of 6kW of heat. The Ecodan 6kW Packaged System was chosen due to its high efficiency rating COP of 5 at an ambient temperature of 7°C. That’s 5kW of heat energy for every 1kW of electricity consumed!2

DRAWN BY: DATE:

ZERO ENERGY HOUSE AT: 5 TIMARU PLACE F.N.

FOR: WARREN LEWIS

ALAN POOR NORTH PERSPECTIVE CHECKED BY: A.P. 6/08/2021 9:42:47 am

SHEET NO. P001SHEET NO. P001

The connecting radiators only need a low flow temp The connecting radiators only need a low flow temp of 35–45°C which is the most efficient way to run the of 35–45°C which is the most efficient way to run the Mitsubishi Electric Ecodan system. Each radiator has Mitsubishi Electric Ecodan system. Each radiator has individual room control for that added comfort for the individual room control for that added comfort for the homeowner. homeowner.

Hot Water Anytime – All Year Round Hot Water Anytime – All Year Round

The domestic hot water supply is catered for by the Ecodan 300L cylinder. The system regularly monitors the temperature drop in the cylinder and will heat up automatically. The homeowner can also pre-set heat up times for busy periods of hot water use. The domestic hot water supply is catered for by the Ecodan 300L cylinder. The system regularly monitors the temperature drop in the cylinder and will heat up automatically. The homeowner can also pre-set heat up times for busy periods of hot water use.

Fresh, Filtered Air with the Added Benefit of Fresh, Filtered Air with the Added Benefit of Energy Efficient Heat Recovery Energy Efficient Heat Recovery

Electrical energy inputElectrical 1kW energy input 1kW

4.0kW Low temperature 4.0kW renewable heat Low temperature energy taken from renewable heat the environment energy taken from the environment

5.0kW Heat energy output5.0kW 2 Heat energy output2

To complete the design, a Mitsubishi Electric Vertical Lossnay VL-350 was chosen to provide super energy To complete the design, a Mitsubishi Electric Vertical efficient fresh air energy recovery ventilation. The Lossnay VL-350 was chosen to provide super energy Lossnay System supplies fresh outdoor air (not from efficient fresh air energy recovery ventilation. The the attic) and removes stale damp air from inside at Lossnay System supplies fresh outdoor air (not from the same time. the attic) and removes stale damp air from inside at the same time. Furthermore, heat energy is recovered from the outgoing stale air which is then used to pre-warm Furthermore, heat energy is recovered from the incoming fresh air - maximising energy efficiencies. outgoing stale air which is then used to pre-warm incoming fresh air - maximising energy efficiencies.

To learn more visit www.mitsubishi-electric.co.nz or call us on 0800 784 382. To learn more visit www.mitsubishi-electric.co.nz or call us on 0800 784 382.

Mitsubishi Electric Ecodan Hot Water Heat Pumps Mitsubishi Electric Ecodan Hot Water Heat Pumps Mitsubishi Electric Ecodan Hot Water Heat Pumps

The total home heating solution that covers all of your hot water needs as well as super energy efficient room heating – all through the one system. The total home heating solution that covers all of your hot water needs as well as super energy efficient room heating – all through the one system. The total home heating solution that covers all of your hot water needs as well as super energy efficient room heating – all through the one system. It’s the environmentally friendly, energy efficient alternative to It’s the environmentally friendly, energy efficient alternative to traditional gas and direct electric systems. traditional gas and direct electric systems. It’s the environmentally friendly, energy efficient alternative to traditional gas and direct electric systems. www.mitsubishi-electric.co.nz | 0800 784 382 www.mitsubishi-electric.co.nz | 0800 784 382 www.mitsubishi-electric.co.nz | 0800 784 382