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Heat pumps twice as efficient as fossil fuel systems in cold weather, study finds
(www.theguardian.com)
this post was submitted on 12 Sep 2023
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Technology
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You'd usually run two or more units in a cascade/multiplex when requiring large amounts of power rather than having one giant unit. Means you can turn off one or more units entirely for low heating demand.
Also choosing a unit (or units) that use a speed controlled compressor will limit cycling as they can ramp for the actual load.