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	RE: Flow Rate & Low Loss Headers By bontwoody, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@morganr my understanding of the HG table is that it indicates how much heat can be delivered through that pipe size at a flow 0.9 mps. This is the standard flow velocity used by installers. Above tha...
	RE: Flow Rate & Low Loss Headers By MorganR, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@allyfish That does look wrong, doesn't it! For identical flows, where the primary and secondary sides are 'in balance' What about when that isn't the case, though? Considering IF they add a LLH to my...
	RE: Say hello and introduce yourself By Majordennisbloodnok, 3 weeks ago Forum Introductions, Forum Rules & Updates
	Welcome, @dgt_73. By the sound of it, there's quite a bit going on here that might interest you and certainly you've plenty of experience we'd love you to share. Are there any pending personal project...
	RE: Flow Rate & Low Loss Headers By AllyFish, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	Hi @morganr, welcome. Interesting post. I looked at the Adlar literature. One thing jumps right out, this diagram, which is plain wrong. I need to call it out. Attachment : image.png It shows...
	RE: Sizing of heat pumps By benson, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	Thanks! That is most useful. I've had a look at the Midea data manual (it is the same heat pump I believe) and that does indeed provide a lot more info. One of our outstanding queries with our instal...
	RE: Say hello and introduce yourself By DGT_73, 3 weeks ago Forum Introductions, Forum Rules & Updates
	Hi. David here , living in Inverness area for last 34 yrs. Mechanical engineer. I've been working in renewables for 20 years, started in wave energy for 10 yrs then switched to heat pumps, field servi...
	RE: Flow Rate & Low Loss Headers By MorganR, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@editor Their idea is that it improves efficiency due to the main heat pump not needing to ramp up the flow temp to meet hot water demands, and not needing to stop providing heat to the emitters while...
	RE: Sizing of heat pumps By cathodeRay, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	You might be able to get some idea from the Midea Engineering Data manual which can be found online (and I think has been posted on this forum at some point, but I can't seem to find it now), on the b...
	RE: Flow Rate & Low Loss Headers By Mars, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	Interesting. Could you elaborate on why they're proposing doing this?
	RE: Getting the best out of a heat pump - is Homely a possible answer? By cathodeRay, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	I found that Homely blog a few days ago and was tempted to do a demolition job, but then decided against it at the time. The methodology is somewhat opaque (a search on the Energy House Labs facility ...
	RE: Getting the best out of a heat pump - is Homely a possible answer? By Majordennisbloodnok, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	And being entirely frank about it, that is part of the appeal of the likes of Homely and Havenwise; they offer a plug and play way for customers to keep those awkward adjustments at arm's length. Ther...
	RE: Getting the best out of a heat pump - is Homely a possible answer? By Toodles, 3 weeks ago Forum Air Source Heat Pumps (ASHPs)
	@majordennisbloodnok Regarding option 1, I omited to mention that after just a few days after commissioning, I set the on/off unkinthermostat to several degrees above maximum required and allowed the ...