COR.gen TwinPower · type CTP-10-2
The furnace. The heart.
Pellet CHP with sand fluidised bed and two Stirling engines. Available as part of COR.set.
COR.gen is not sold separately — it comes to you as part of COR.set. COR.set →·Blackout-sicher dank COR.stor →
10 kW heat. 2.2 kW power.
3.1 – 10 kW
heat, continuously modulating
0.5 – 2.2 kW
power, up to 2,400 W feed-in
How it works
From pellet to power.
A boiler makes heat. COR.gen makes heat and electricity from the same pellet — in five steps, without a single moving part in the hot zone.
Pellets arrive
The day hopper holds 40 kg and is filled automatically via COR.vac. At rated load, COR.gen uses around 2.7 kg per hour.
The sand starts to boil
Preheated air passes through the nozzle floor and fluidises a bed of sand until it behaves like a boiling liquid. At around 800 °C the pellets burn completely within it — evenly, without temperature peaks, without slagging.
Two engines make electricity
The heater heads of two free-piston linear Stirling converters sit in the sand. They turn the heat directly into electricity — helium-filled, no crankshaft, no lubrication. The constant flow of sand keeps them free of soot.
The heat goes into the house
Whatever the engines do not convert into electricity is picked up by the heat exchanger and passed to the heating system — modulating between 3.1 and 10 kW, flow temperature up to 65 °C.
The ash stays in the water
Finally the flue gas passes through the scrubber, which binds the ash in water. There is no ash pan for anyone to empty.
Sand at 800 °C.
Preheated air fluidises a bed of sand in the combustion chamber — pellets burn completely, without temperature spikes or slagging. Power plant technology, for the first time in a single-family home.
How it works
Two engines. No wear.
Two free-piston linear Stirling converters turn the heat into electricity. Helium-filled, no crankshaft, no lubrication — maintenance-free for life.
Wood pellets class A1.
The day hopper holds 40 kg and is filled automatically via COR.vac. At nominal load COR.gen uses about 2.7 kg per hour — and disposes of the ash itself: the flue-gas scrubber binds it in water, no ash pan at all.
No space indoors? COR.gen also comes ready-installed in the COR.tainer — placed in the garden or beside the garage, with no plant room and no rebuilding.
COR.tainerAt a glance.
- Dimensions (D × W × H)
- 127 × 92 × 182 cm
- Weight
- approx. 650 kg
- Sound level
- < 60 dB(A)
- Flow temperature
- up to 65 °C
- Standard
- EN 303-5, boiler class 5
FAQ
Frequently asked questions
COR.gen is a CO₂-neutral pellet combined heat and power unit for the home: from pellets it produces heat and electricity at the same time — up to 10 kW heat and 2.2 kW power from one unit.
It depends on your house, consumption and PV. Work it out with no obligation using our savings calculator — including self-sufficiency and CO₂ avoided.
COR.gen runs on wood pellets. Combustion releases only as much CO₂ as the tree previously absorbed — CO₂-neutral in the cycle. Almost half of Austria is forest, growing back sustainably.
Yes. COR.gen is black-start capable — it starts even without the grid. Together with COR.stor your home stays powered during a blackout: switchover typically under 20 ms.
COR.gen runs unobtrusively and is installed in the utility room — comparable to a conventional heating system, except it also generates electricity.