Recent Posts

| Forums | Topics

Page 2 / 166 Prev Next

Posts with their shortened content
	RE: Setback savings - fact or fiction? By cathodeRay, 14 hours ago Forum Air Source Heat Pumps (ASHPs)
	As long standing followers of this debate will know, theoretical assessments of whether setbacks achieve savings tend to suggest the savings are modest, possibly even existent or, shock horror, setbac...
	Different dT on each radiator? By medwardz, 15 hours ago Forum Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
	All supplier surveys I've had, as well as tools like Heatpunk, assume the same dT (typically 5°C) across all radiators. In my house, with 8mm microbore radiator tails, that leads to very high flow vel...
	RE: Configuration issues with 10kW Midea R32 heat pump By cathodeRay, 16 hours ago Forum Air Source Heat Pumps (ASHPs)
	It is indeed. The same tales of woe can be heard in pubs up and down the land. None of my immediate neighbours has a heat pump (and one has just replaced their oil tank, which tells us something about...
	RE: Setback savings - fact or fiction? By cathodeRay, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	@adrian — can you expand a little, and show your actual workings, as I don't fully understand your method? Are you really using °K (Kelvin)? Also bear in mind my house is not well insulated (it's an o...
	RE: Configuration issues with 10kW Midea R32 heat pump By SteveT, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	You are right. I think I would turn the system off a the moment and the house will hardly lose any heat. I will almost certainly getter a better perspective when we return to more normal winter weath...
	RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt By JamesPa, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	I get the impression that that comment "they don't commission it to run purely on WC" applies to a high proportion, maybe the majority, of installers, whatever the heat pump. In defence, getting heat...
	RE: Setback savings - fact or fiction? By Toodles, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	@adamk It seems to me that the writers of some optimisation software endeavour to raise the fabric temperature by ‘hot-housing’ during the TOU cheapest rate hours to reduce consumption during more exp...
	RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt By SteveT, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	We used Puraflow, I was very impressed with their design and heat loss. We had a 3 hour visit and Heat Loss per room calculation. He took into account window, size, glazing type, compass direct of w...
	RE: Setback savings - fact or fiction? By Adrian, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	@cathoderay i’m getting different results, using this method: calculate the average kWh/inside outside deltaT Kelvin (sum(kWh in)/sum(deltaT), that comes out at 0.082. kWh/K. Then multiple that with ...
	RE: Setback savings - fact or fiction? By AdamK, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	i did try tariff optimisation but it tried cooking us. missus liked it but it was setting the indoor to 28c during the cheap rate electric, fortunately it never managed to get that hot. ive got batter...
	RE: Configuration issues with 10kW Midea R32 heat pump By cathodeRay, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	Find another bit of metal in the room and put the back of your hand on that, you will then appreciate the rad is warmer that you first thought! Plus it is mild at the moment, and a 30°C @ 15°C setting...
	RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt By AndrewJ, 17 hours ago Forum Air Source Heat Pumps (ASHPs)
	Well, you know that it is possible to at least attempt to run it purely on WC but that isn't the way Octopus will commission it or, my impression, expect it to be running if you require support. That...