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	RE: Missing flow temperature in Heat Geek proposal By L8Again, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa Just to reinforce your point about reducing radiator swaps, Mick Wall has just released this video about running costs; radiators and SCOPs: A much overused phrase this days is ‘just becaus...
	RE: Missing flow temperature in Heat Geek proposal By Majordennisbloodnok, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	OAT = Outside Air Temperature IAT = Internal Air Temperature As for the chart, you'll see the clustering around the 5 degree increments because the axis is for design flow temperature. The installers ...
	RE: Missing flow temperature in Heat Geek proposal By JamesPa, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@david-2 IAT indoor air temperature OAT outdoor air temperature These are installed heat pumps (each dot = 1 or more pumps Clustering because the axis is design FT and people tend to design for 35,...
	RE: Missing flow temperature in Heat Geek proposal By David, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	Sorry but what is “OAT” and “IAT” One thing that struck me about the chart “ What SCOP is achieved by installed heat pumps?” Is the clustering of heat pumps around exactly 35° 40°, 45° and 50°. If e...
	RE: Cascade System or larger single unit By Renewables345, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa Very confident with the heat loss. The house is 700m2, all up to new build spec, 3 floors, very tall windows and very high ceilings.
	RE: Cascade System or larger single unit By JamesPa, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	How sure are you of 28kW, thats absolutely massive. I presume either your house is absolutely massive (Im thinking well over 500sq m) or it has zero insulation or both? Whats your current fuel cons...
	RE: Missing flow temperature in Heat Geek proposal By JamesPa, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	All agreed. On the wider point I am beginning to think that the industry (to be accurate the smart part of the industry) understanding of flow temperature is evolving and actually ours (or at least mi...
	RE: Missing flow temperature in Heat Geek proposal By Mars, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	I’ve had another look at this thread because earlier today I’ve been sent some feedback from an installer, and the screenshots I’ve seen imply there is a growing suspicion in parts of the industry tha...
	Cascade System or larger single unit By Renewables345, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	Hi all, I’m looking for some advice on an upcoming domestic ASHP project. The design heat loss is around 28kW, and I’m currently looking at the options for supplying this with either: 1 × approximat...
	RE: Why are ASHP installs so expensive? By Toodles, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@majordennisbloodnok Yes, that ‘Early days of a business relationship’ is very important. For this reason I have approached my ASHP installer about installing AC for us. I think that from the various ...
	RE: Why are ASHP installs so expensive? By Toodles, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa I think I can imagine, along with MCS fees, I suspect they are a major component in the overall running costs to installers.
	RE: Why are ASHP installs so expensive? By JamesPa, 4 weeks ago Forum Air Source Heat Pumps (ASHPs)
	Have you seen the price of those pieces of kit!