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	RE: Boiling Mad: Exposing Radiatorgate By Mars, 2 days ago Forum Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
	@rob-nezard is the biggest expert I can think of in rads... what do you think Rob?
	RE: Midea ASHP – how to set weather compensation By cathodeRay, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	To answer: (a) but I do have the WC set properly, see past posts of charts of my IAT, eg this one. There is simply no need for room stat interference: Attachment : image.png (b) I don't ...
	RE: Midea ASHP – how to set weather compensation By cathodeRay, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	You need to be a bit careful when using past oil heating based estimates, because it is very likely you did not run the oil heating in the same way as you run a heat pump based system. You may recall ...
	RE: Midea ASHP – how to set weather compensation By cathodeRay, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	I was just about to do that, and here it is. The CAP columns are the outputs at various OAT and leaving water temps (LWT , flow) in watts. As you may have picked up elsewhere, Midea units suffer from ...
	RE: Midea ASHP – how to set weather compensation By pash44pump, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	This now in answer to my request to provide input assumptions for the heat loss calculations "In the scope document that Sandra shared with you, the details you are looking for can be found on pages 1...
	RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House By JamesPa, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@drei I will say again that Im sorry to heat about your woes. Despite the fact that my heat pump install has been a sparkling success, Im angry too, albeit for a slightly different reason. I think...
	RE: Seeking Help for In-Principle Quote to fix a botched heat pump installation by Heat Geek Installer By GrahamF, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@drei I was very sorry to read this heartbreaking story. It is bad enough to feel you have been ripped off, but being cold at home with your family must make it doubly bad. On top of that, you seem ...
	RE: Midea ASHP – how to set weather compensation By pash44pump, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa how do you get from usage of 30MWh to loss between 10 and 15?
	RE: Midea ASHP – how to set weather compensation By JamesPa, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	OK that's great. 3000l = 30MWh. This corresponds, almost certainly, to a loss between 10kW and 15kW. I would probably ask the installer to produce the fabric parameters fed into the program. You ca...
	RE: Midea ASHP – how to set weather compensation By cathodeRay, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	You have in a way touched on the essential difference between WC and room stat based control: the former is continuously variable between X and Y (the limits of the curve), while the latter is on/off....
	RE: Midea ASHP – how to set weather compensation By pash44pump, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa Ok I have now found all my old oil orders and over a 7 year period, the average amount ordered was 2900 litres. The installer assumed an average of 3000 litres in the scope document. The hous...
	RE: Midea ASHP – how to set weather compensation By JamesPa, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@pash44pump Ok that's a bit concerning. Is the difference down to the fact the as built spec for the building departs from the design spec? If so it's possible that the ufh is not adequate (althoug...