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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House  

By DREI, 2 weeks ago

  What about this: R32 ASHP According to the new EU F-Gas Regulation, the sale of new heat pumps containing R32 refrigerant will be banned from 2027 onwards. I also noticed @Temperature_Gradient mention...
RE: Seeking Help for In-Principle Quote to fix a botched heat pump installation by Heat Geek Installer  

By DREI, 2 weeks ago

  @cathoderay agreed, and I hope that the Renewable Heating Hub starts coming up in Google searches more and more. It seems to be one of the few places that has the good and the ugly in one place. If Ma...
RE: Midea ASHP – how to set weather compensation  

By JamesPa, 2 weeks ago

  Something isn't right here, you don't design ufh to work above 45C, you would burn your feet. Normally it's designed for 35C or thereabouts. This may not be a heat pump problem! Who specified the uf...
cathodeRay RE: Midea ASHP – how to set weather compensation  

By cathodeRay, 2 weeks ago

  @pash44pump - the installers heat loss calculations appear to indicate a total heat loss of just under 9kW, which seems rather on the low side for the property you describe. I have a smallish old leak...
RE: Electricity price predictions  

By Judith, 2 weeks ago

  the post code lottery is only one thing that is very wrong with our energy system! London should be paying lots more on the SC under present rules but lots of people live there and vote. But on a per...
RE: Midea ASHP – how to set weather compensation  

By pash44pump, 2 weeks ago

  @cathoderay thanks. House is large (3700+ sq ft) and is a converted barn made of solid brick with internal insulation, which assuming it met building regs and based on photos of the build project (bef...
cathodeRay RE: Midea ASHP – how to set weather compensation  

By cathodeRay, 2 weeks ago

  They look decidedly skimpy to me. A proper heat loss estimation (which is all they are - see many posts passim) uses a survey of all surface areas and materials, and sums the loss for each at the desi...
RE: Electricity price predictions  

By Diverted.Energy, 2 weeks ago

  @julianc and over the next 3 to 5yrs, from the remaining 5 Nuclear power plants reducing output from 5yrs ago already by 80% to whats left, 4 more scheduled to close pushing higher Baseline Gas genera...
RE: Midea ASHP – how to set weather compensation  

By JamesPa, 2 weeks ago

  I don't think you can discount on this basis alone, it would depend on the WC curve settings and the system design For example if you have a secondary pump and buffer tank (do you?) the call for heat ...
RE: Midea ASHP – how to set weather compensation  

By pash44pump, 2 weeks ago

  @cathoderay I have weather comp running thanks to the excellent explanations on this thread! Attachment : 1625558985803.room-by-room-calculations.pdf Prior to that it wasn't using weather compe...
RE: How Do I Know When the Hot Water Has Run Out?  

By JamesPa, 2 weeks ago

  @grahamf Personally I would consider bypassing one of the tanks to reduce loss. Of course this may not be straightforward.
Transparent RE: What crazy nonsense are inverter limits and why are they imposed?  

By Transparent, 2 weeks ago

  No I'm not mining anything @drei but I am doing R&D to find remedies for problems that adversely affect the electricity grid. 😀 I think you'll have to be a lot more precise than that. ...
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