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SLOW HEAT


About 125,000 years ago humans realised that the stones surrounding their fires stayed warm, long after the fire had gone out... The most efficient way to burn wood involves a process of rapid, clean combustion, coupled with an effective way to trap and store the resulting heat energy. The stored energy, must be transferred to heat space as required, and with minimal losses. Our ambition has been to produce a clean-burning stove with an efficient heat storage/transfer process and ultra-low emissions. The PYROLYIS TM1 has been designed along principles first developed during the 18th Century, when engineers realised that energy in the smoke and gases, produced by burning wood, needed to be held in the stove for as long as possible. These engineers used baffle-plates, clay and stone to achieve that principle: we’ve used augers to slow down heat release and crushed recycled glass to store the energy from that heat. Simply burning wood in a steel box and sending most of the heat up the chimney is no longer acceptable, a guiding principle which most manufacturers of woodburning stoves today seem to ignore! The PYROLIS TM1 sets new standards in wood-burning efficiencies and sits comfortably among the most efficient wood-burning stoves ever built.


THE ADVANTAGES AND EFFICIENCIES OF THERMAL MASS. According to the relevant EC test standard, this type of stove must retain heat in the thermal mass for at least 4 hours after the fuel has been completely burned. Added to this, the surface temperature of the stove must not fall below 75% of the temperature recorded at the time the stove is turned off. The PYROLIS TM1 operates at efficiencies above 80%, which means that it is losing only about 20% of the energy provided by the fuel out of the chimney. The total energy value of the fuel (3kg of dry wood pellets) has been calculated at 14.4kWh, which means that the stove stores about 11.52kWh of energy in its thermal mass. This heat energy is transmitted slowly into the room over 10 hours, at roughly 1.1kWh.

Ambient 15 min 30 min 45 min 60 min 75 min 90 min 105 min 120 min

Bottom chamber

Middle chamber

Top chamber

19C 19C 20C 22C 22C 24C 24C 24C 25C

19C 19C 20C 21C 23C 27C 30C 33C 35C

19C 19C 20C 20C 21C 23C 25C 27C 29C

Top chamber Middle chamber

Bottom chamber

Shut down after 2 hour burn period.

180 min 240 min 300 min 360 min 420 min 480 min 540 min 600 min

At £250 PER TONNE (25p/kg) FOR WOOD PELLETS THAT 11.52kWh HAS COST YOU – 3KG = 75p = 6.5p/kWh.

Choice of enamelled finishes and colours.

RRP - £2995.00

Middle chamber

Top chamber

34C 39C 40C 38C 36C 33C 30C 27C

47C 43C 40C 37C 36C 33C 29C 26C

39C 40C 38C 37C 35C 33C 28C 26C

Heat Accumulation and Release after shutdown:

At £150 PER TONNE (15p/kg) FOR WOOD PELLETS THAT 11.52kWh HAS COST YOU – 3KG = 45p = 3.9p/kWh.

STOVE DIMENSIONS: Height 1.8metres x Diameter 400cm. Weight 300kg.

Bottom chamber


DATA AND PERFORMANCE: This data was produced during the early stages of stove design. Final testing to EC standards require readings to be collected every 60 seconds of the burn process to determine overall efficiency and emissions. At 60-second interval readings the efficiency of the stove is recorded at these averages: 02 (Oxygen in the combustion process) – 12.3% CO2 (Carbon dioxide in the combustion process) – 8.2% CO (Carbon monoxide release ppm) - 336 Flue Temp – 237C

Overall Stove Efficiency – 80.65% • •

Combustion benefits from the addition of a small blower with an output of 3.6watts/hr. Carbon monoxide emissions are 90% below the EC permitted levels for this type of woodstove.

PELLET-FIRED THERMAL MASS HEATER – GLOBALLY UNIQUE DESIGN.

200 KILOGRAMS OF RECYCLED GLASS EMBEDED AS THERMAL MASS.

COMPLETELY SMOKELESS COMBUSTION PROCESS RATED AT 99% EFFICIENT.

COMPLETE CLEAR VISION VIEWING.

THERMAL OUTPUT AT BETWEEN 4.7KWH - 7.2kWh.

REQUIRES 3KILOS OF FEEDSTOCK PER BATCH-FIRING.

CAN BE FIRED UP TO 4 TIMES A DAY.

BUILT TO EUROPEAN STANDARD EN15250.

CE MARKED.

BEST VALUE FOR MONEY IN ITS CATEGORY ACROSS EUROPE.

TM1 Prototype testing – July 2016.

DESIGNED, TESTED AND MANUFACTURED IN THE UK.

Slow heat  

Probably one of the most efficient pellet-fired domestic heating stoves ever built.

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