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Water cylinder for heat pump outside the house

 
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Domestic Hot Water & Cylinders
Last Post by Old_Scientist 2 months ago
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 Old_Scientist
(@old_scientist)
Honorable Member Member
Joined: 2 years ago
Posts: 405
06/04/2026 2:47 pm  

My neighbour has his water cylinder (plant room) in a timber built lean-to shed on the side of the house, due to inside space limitations. The shed was extremely well double-insulated with overlapping Kingspan insulation sheets, and pipework passes immediately through the exterior wall into the property minimising outside pipework and all contained within the insulated shed. All pipework was well insulated.

Obviously this is not an ideal solution as there will still be heat loss from the cylinder to the outside, but it is a trade off versus space and not all properties have space for a cylinder. Because it is a small well insulated space, there is probably less heat loss than if cited in a loft space which seems to be quite common.


Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW)
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.


   
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