Heat Pump ??
Does anyone else's heat pump backlash off and on during the furnace cycle? Does it sometimes sound like it is pulling too much intensity?
It will lower off even though the thermostat setting has not been reached in order to de-ice the outdoor twist.
here's an article...

Greatest name in heating Dimplex is helping installers get to grips with MIS 3005, the new heat pump placement standard, which comes into effect from February 2012. The heat pump industrialist has been running a series of seminars around the country













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