Air to Air Vs Air to Water Heatpumps. Now closing the gap.

It doesnt quite work out like that if the system has been designed correctly, in these examples you would compensate for this by a weather compensation temp control where the water temp is lowered to avoid this and also a buffer tank can be fitted to also prevent this, our old system had neither and suffered through poor design, the cost of upgrading it wasn't worth it as it was cheaper to take it out and replace it with a trad gas boiler.

Buffer tank correct but WC arse about face.
 
Since looking into these heat pumps have you had any education by looking into their efficiency?

It gets so confusing because there are three different efficiencies with ASHPs; vs water temperature, vs outside temperature, vs compressor speed.
 
My friend is modern and cool like me.

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It gets so confusing because there are three different efficiencies with ASHPs; vs water temperature, vs outside temperature, vs compressor speed.
well to simplify it, look on it as if you put 1 kwh in, you will get around 4.5 kwh out, that is some efficiency but obviously on a correctly designed system.
 
It gets so confusing because there are three different efficiencies with ASHPs; vs water temperature, vs outside temperature, vs compressor speed.
try this, I know you will read it and take it in.

 
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