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<blockquote data-quote="carptench" data-source="post: 525596" data-attributes="member: 34841"><p>Yeah the air source heat pump is not good in the winter. We have underfloor heating throughout the whole house and its also well insulated as only 8 years old. I try and get away with setting the room stats to 19/20c but not really warm enough (According to the wife<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite4" alt=":mad:" title="Mad :mad:" loading="lazy" data-shortname=":mad:" />). Even then we can easily use 50kwh a day between Nov and Feb. Before lowering the room stats we would use much more. Our exact usage over the last 4 years has been 46k kwh. To be fair the heat pump didn't cost us anything as we got 7k RHI payment which more than covered the cost of installing it.</p><p>Think you made the right call keeping the Rayburn and I think we are going to look to doing a similar setup with either a pellet stove or multifuel burner with back boiler to assist the heat pump. Not sure how doable it is yet as the ASHP is on a unvented system which doesn't work with back boilers.</p><p>What is your solar set up and immersion heater diverter?</p></blockquote><p></p>
[QUOTE="carptench, post: 525596, member: 34841"] Yeah the air source heat pump is not good in the winter. We have underfloor heating throughout the whole house and its also well insulated as only 8 years old. I try and get away with setting the room stats to 19/20c but not really warm enough (According to the wife:mad:). Even then we can easily use 50kwh a day between Nov and Feb. Before lowering the room stats we would use much more. Our exact usage over the last 4 years has been 46k kwh. To be fair the heat pump didn't cost us anything as we got 7k RHI payment which more than covered the cost of installing it. Think you made the right call keeping the Rayburn and I think we are going to look to doing a similar setup with either a pellet stove or multifuel burner with back boiler to assist the heat pump. Not sure how doable it is yet as the ASHP is on a unvented system which doesn't work with back boilers. What is your solar set up and immersion heater diverter? [/QUOTE]
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