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A comment on Heat pumps of the 1800s are becoming the technology of the future. Parent comment
>A recirculating central heating system doesn't do that.
They definitely circulate air, and they definitely filter the air. Whether there is fresh air depends, mostly no.
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>A recirculating central heating system doesn't do that.
They definitely circulate air, and they definitely filter the air. Whether there is fresh air depends, mostly no.