Explore the hardware,
before it ever touches your wall.
Spin the unit, pull it apart, hear how quiet it really is and watch the physics respond to the weather in real time. This is the system we install — nothing hidden.
A propane heat pump, laid bare
Use the model above — drag to orbit, tap Exploded view to separate the panels, and toggle the hotspots to see what each part actually does.
R290 propane inside
A natural refrigerant with a global warming potential of just 0.02 — and the thermodynamics to reach 75°C flow temperatures.
Inverter-driven scroll
The compressor modulates to match your home’s demand precisely, rather than crudely switching on and off.
Works down to −20°C
The large heat exchanger keeps pulling warmth from the outside air even on the coldest UK mornings.
How quiet is 44 decibels, really?
Drag the slider to step back from the unit and hear the level fall away. The numbers follow the inverse-square law from a verified 44 dB(A) rating.
Library reading room
Perceived level 1.0 m from the unit, in reduced night-time mode.
Audio is a broadband approximation for illustration — real-world levels depend on siting and surfaces.
Watch efficiency track the weather
Move the outside temperature and see how the controller reshapes the flow temperature — and what that does to the real-time coefficient of performance.
39°C
Auto-adjusted by the controller
4.80
Units of heat per unit of power
Instead of blasting a fixed high temperature, weather compensation lets the sensoCOMFORT controller nudge the flow temperature up only as far as the cold demands. Lower flow temps mean a bigger gap stays efficient — which is exactly why the COP climbs as the weather warms.
Busting the ‘giant radiator’ myth
Same wall space, three panel builds. Switch between them to see how much more heat a deeper panel delivers at an efficient, low flow temperature.
Type 22
Double panel, double convector
ΔT25 is the emitter delta — the mean water temperature minus room temperature (~25°C for a low-temperature heat-pump system). It is a different measure from the ~5°C flow/return system ΔT we design your pipework to.
The myth says heat pumps demand enormous radiators. In reality, swapping a slim Type 11 for a deeper Type 22 or 33 on the same wall footprintcan more than double the heat delivered at a low, efficient flow temperature — often with no extra floor space at all. We size every emitter in your home before we quote, so nothing is guesswork.
Inside the Super Cylinder
The oversized coil is what lets your heat pump make hot water without ever straining. Switch models and watch a reheat stratify from the top down.
Super Cylinder HG210
181 L
6.0 m²
1.83 kWh/24h
C
The oversized 6.0 m² coil is the whole point. A bigger coil transfers heat into the water at a far lower flow temperature, so the heat pump keeps running efficiently while it reheats — rather than straining at high temperatures like it would with an ordinary cylinder. Better stratification means more usable hot water from every reheat.
Seen enough? Let’s design yours.
Every quote we produce is built on a proper heat-loss survey — the same rigour you’ve just explored, applied to your actual home.