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Last seen: Mar 13, 2026
@richard24738 if the sun's out, aren't you getting solar gain in the house?. We have the same thing, our HP is on the south side so get sun directly o...
@richard24738 do you know where the outdoor thermistor sits, is it on the back, top corner? Mine sits on a raised balcony but south facing, I'm thinki...
@richard24738 what did mitsu say in the end, did you manage to fix the issue?
@sunandair I meant as I had already mentioned. It was commissioned, I have been l, like most here trying to get it set up efficiently. Ie take the act...
@gary yes pump was on speed 1 for a few days. And yes u I understand what your dying re putting flow rate up. What size HP have you got? UFH ? I just ...
@sunandair stats set as above so there is just one set above bedroom comfort level, so that the circulation pump operates, I will then set that stat t...
@gary hi, so if your min flow temp is 32c what happens when the weather gets a bit milder, does the house over heat? how do you control the temp in th...
@sunandair hi, its a new system, been in two yrs but not really used whilst it was being sold, i have asked the agents that maybe it should of been se...
@sunandair yes ive done that to check the L/M, and checked quite a bit, seems not to change
@sunandair hi, yeah I've set WC curve to 40c @ -19 and 30c@ 4, it's averaging about 10c oat today. All actuators taken off all stats set to 17c except...
@downfield on a laptop gives a far better graph, and if you take off hot water even more so, I found this out this week with advice from @sunandair an...
@editor I can't find any, any other ecodan users here have a mitsibushi weather comp chart?
Latest Posts
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RE: ASHP Capacity loss with aging
This is a good question. The short answer IMO is yes, c...
By Mars , 9 hours ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
Welcome @simon_jm, and this is not a dumb question at a...
By Mars , 9 hours ago
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RE: Loud noises in the night - and one for the toolbox?
Brilliant bit of lateral thinking, and a useful one to ...
By Mars , 11 hours ago
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RE: Setback savings - fact or fiction?
Yes, also the higher OAT end is possibly a smidge high ...
By RobS , 11 hours ago
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RE: UK warm homes plan - how can it be delivered?
@bobflux My view is that regulation for consumer pro...
By Batpred , 13 hours ago
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Hi Mars, I've sent you a request to connect me with a...
By sttpd1917 , 14 hours ago
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RE: Sizing an ASHP; Heat loss and kW
Annual consumption is almost certainly better than an E...
By JamesPa , 18 hours ago
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Grant Aerona R290 (15.5kW) - How is DHW Target Temp calculated?
Hello all, We have just had a Grant Aerona R290 insta...
By TaffontheTaff , 19 hours ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 24 hours ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 1 day ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
By Batpred , 2 days ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@swwils there is no logic to oversizing a heat pump. It...
By AgentGeorge , 2 days ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 3 days ago
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RE: Forum updates, announcements & issues
I have been doing a lot of work on the site lately and ...
By Mars , 3 days ago
