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@heacol
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Noble Member
Joined: Aug 6, 2021
Last seen: Aug 4, 2025
Profile Activity
Topics: 3 / Replies: 404
AllTopicsReplies
Reply
RE: Heating theory doesn’t match reality

@drdp Hi, Difficult to determine what is wrong, can you PM me a system drawing listing all components and wiring if possible. It does not seam to be w...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating designer / engineer needed

@transparent This valve will control the flow temperature and on whether compensation and internal temperature, there are others on the market, but th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@scrchngwsl The ideal Delta T for a heat pump is 8 Deg C. Any variance, either way, will reduce performance. The good units on the market will control...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Most efficient use of NIBE GSHP with Solar PV

@derek-m The Nibe unit actively monitors the electricity going back to the grid and will raise the water temperature first and then the house temperat...

3 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Underfloor heating designer / engineer needed

@transparent You have too much micto contro for an efficient system. If you controlled the water temperature and blend it down with a proper temperatu...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat storage batteries

@derek-m The cheapest and best heat energy storage is a thick concrete slab with a well designed low temperature under floor heating system

3 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: Heat pump delta T too low - 2c

@benseb the Delta T should be between 5 and 10 Deg C. Try reduce the speed on one of the circulating pumps. This will increase the Delta T and further...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

Mars, I think you are very optimistic and have significantly overstated the number of well designed systems. From the amount of systems that we sort o...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating designer / engineer needed

@transparent You seam to have a system with a lot of potential. With a few alterations, it will improve conciderably and reduce your running costs. Yo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: not having a good time with my ASHPs (yes, plural)

Difficult to derimine your problem but with the COP figgures you have mentioned, you have some serious problems, and unfortunatly you seam to have a v...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

@derek-m A thermostat is a device that controlls atemperature, it cancachieve this in many different forms. On-Off is the most basic form and concique...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

@derek-m It looks like a standard thermostat and connects to a standard under floor actuator head. Instead of either open or close, as with a standard...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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