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WhisperGen microcombined heat and power unit

Imagine being paid every time you switch on the central heating. That, according to E.ON, is what you get with the WhisperGen microcombined heat and power unit.

Generating electricity as it provides heat and hot water, it can earn the householder up to £400 a year by taking advantage of the Feed-In Tariff scheme, which makes payments to energy users for renewable electricity they generate. 

WhisperGen is designed to provide 12 kW of heat for space heating and hot water while, at the same time, generating 1kW electricity.