Just define 100% as the energy available while ignoring exhaust gas losses. Then recover the exhaust gas losses via condensing, voila efficiency > 100%. That particular definition is of course bogus, but historically common and still in use especially in (the rest of) Europe.
Just define 100% as the energy available while ignoring exhaust gas losses. Then recover the exhaust gas losses via condensing, voila efficiency > 100%. That particular definition is of course bogus, but historically common and still in use especially in (the rest of) Europe.
I think all efficiency ratings are bull same as car mpg, its all lab tested and leaning towards the best results of a manufacturer. I know people knock intergas but I've fitted loads of them (yes they look dog ugly) but I've never had one go down and customers love them.
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