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	RE: Help me keep the faith with my air source heat pump installation By AgentGeorge, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	@adamk these are called roll top rads, they were still available at screwfix till few years ago in their budget range. The bleed keys are not strong, ive had to use a pair of pliers on the tab of the ...
	RE: Help me keep the faith with my air source heat pump installation By JamesPa, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	made of brass not plastic, proper square hole same shape as bleed screw. I did a quick search and they seem relatively rare, most seem to be a (presumably) cheaper design where the hole has been cut r...
	RE: Help me keep the faith with my air source heat pump installation By AdamK, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	@agentgeorge this is on a 30 year old rad at a guess. They’re like an odd little insert that is about 10-15mm in size with the bleed screw in the centre. on another question, what’s a decent bleed key...
	RE: Anyone able to provide some feedback before I make my finale decision? Samsung vs Baxi vs Vaillant By AdamK, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	If the Vaillant is a 7kw unit I’d avoid. Quiet outside noisy inside when it’s going full on. They have a problem with compressor vibration being transferred into the house pipework, so if your primari...
	RE: Grant 13kW Aerona3 - issues getting zones to temp By Crimson, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	So its clear temps are downward trending. Suspect nightmode off is the cause. its relatively cooler temps now outsife over night so I wouldn’t expect this (eg flow temp would have gone up on the WC) I...
	RE: Testing new controls/monitoring for Midea Clone ASHP By benson, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	It has it's uses and there is no way I could have set the helpers up myself without any chatgbt input, or not quickly anyway- but yes I can see where you are coming from. If it can make life a bit eas...
	Samsung Gen6 and Havenwise ........ By Lenny, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	I sourced the Wi-Fi unit (City Plumbing - £122 with 15% disc for 1st App purchase) and it installed with little fuss. Havenwise App reckoned I needed a Shelly Temp unit (which they sent FOC) and that ...
	RE: Grant 13kW Aerona3 - issues getting zones to temp By JamesPa, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	Definitely. 8C DT is higher than the default design DT for most heat pump systems which is 5 This has the effect of reducing the average flow temp by 1.5C, which will of course reduce output if the ...
	RE: Grant 13kW Aerona3 - issues getting zones to temp By Crimson, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	Sorry James a typo there. Eskimos CAN perform at a low delta t. Sausage fingers here. The 8C expected delta set by the Grant ASHP by default may be too high is what I was trying to get at. Comb...
	RE: Grant 13kW Aerona3 - issues getting zones to temp By JamesPa, 5 days ago Forum Air Source Heat Pumps (ASHPs)
	Thats a great analysis and \|I doubt any heat loss calculations adequately deal with this. Put another way there is an (probably) unaccounted for loss from ground floor and equal gain to top floor whi...
	RE: Testing new controls/monitoring for Midea Clone ASHP By cathodeRay, 6 days ago Forum Air Source Heat Pumps (ASHPs)
	This is one of the reasons why AI will be the death of us, you don't have to understand anything! In other words, it removes the human steps of learning, understanding and then doing. That's what we o...
	RE: Grant 13kW Aerona3 - issues getting zones to temp By Crimson, 6 days ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa i think the challenge is in the house, its an existing 1970s structure thats been highly insulated, basically gutted and celotex up to 100mm on internal walls and a tone of loft insulation a...