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Further to @Temp's reply in @joe90's topic Can we keep the lights on this winter? Our ASHP has it's own main electric meter with nothing else connected. Testing over hours, it appears that my previous estimation of the standby power consumption is about right. The results for our ASHP on standby is a rate of about 82-84 watts, so total used for 24 hour standby is 1.968-2.016kWh assuming no power used for the heat protection of the ASHP. This was measured with an outside temperature no lower than 8.8C over the last 24 hours and no lower than 9.9C during the period of measurement. Bearing in mind that the ASHP compressor must be warm enough to work without causing excessive wear, and requires 12 hours of standby after the outside temp achieved rises above 5C, this may mean that we cannot turn the ASHP back on for 12 hours after a power cut! I hope every ASHP owner with the same compressor requirement is aware of the dilemma of either having no heating for 12 hours or risking excessive wear of the compressor. Marvin
