I can't see how this works either. On the face of it they are extracting more heat than anyone else can get for a given energy input.
Curiously, the gas inlet is 15mm for the 54Kw unit.
And the HE looks very much like the Italian unit most other manufacturers use. The control panel looks like it came off a 6th form project - or possibly a Keston (OK, there's not much difference).
Does anyone know where these things are made? My money is on Italy. Couldn't find any mention of a warranty on the web site.
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