NIBE systems have been designed to run entirely on electricity to provide heating and hot water. This type of heat pump comprises of an electric ‘boiler’ and a heat pump, which recovers heat from the ventilation air. Heat is recovered from the warm stale air extracted from the kitchen and bathroom and transferred via a heat pump to the radiators and hot water system. This system is designed to work 24 hours a day and includes a back up immersion heater which should only be used to ‘top up’ the heating and hot water requirements when the heat pump is unable to meet demand.
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