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Last seen: May 18, 2026
Welcome to the forum and I am sorry you are disappointed. In fairness this time of year is by far the most expensive and the most noisy time for hea...
My house/experience: a) 2off 'professional' 3 hour surveys: 16kW. One I paid £300 for the other was FOC, different surveyors/heat pump installers ...
@anon67 Sorry I cant help. The only 'lead' you might follow is the fact it works for DHW. The faults look like they would affect DHW also but a...
@davec Ive had a look at the screenshots. Lots of the parameters are things you wouldn't want to touch but: Im guessing H43 and H44 are the two F...
When I had a series of apparently unrelated faults my installer turned up, checked the flow rate using the test menu, and cleaned the filters (two - a...
At this stage I would say no as gross underestimation of the loss is not the most likely cause of the problem. More likely causes are (a) the heat...
I cant see how that is the case if the earth is provided by means of a bond to the metal outer sheath of the incomer; no cut (other than one in your d...
Thanks for the clarification.
OK, TBH I dont know enough about MLCP to comment with any authority. The simple message so far as I am aware is: Nothing inherently wrong with plasti...
Peak Energy Products most recent accounts (to June 2024) make interesting reading. Im not an expert by any means, but their assets are almost entirel...
To answer this properly you need a heat loss calculation. Then you can work out how much flow each radiator needs which will tell you what diameter p...
Definitely please! Is that a plate heat exchanger above the bucket. Can you tell whether it is connected to the DHW or to the space hea...
Latest Posts
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RE: Sizing an ASHP; Heat loss and kW
Annual consumption is almost certainly better than an E...
By JamesPa , 2 hours ago
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RE: UK warm homes plan - how can it be delivered?
No rule that says we do so far as I know. Like much o...
By JamesPa , 2 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 , 3 hours ago
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RE: Setback savings - fact or fiction?
Indeed, I can well imagine that a heat-pump based syste...
By PeterWurmsdobler , 6 hours ago
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Loud noises in the night - and one for the toolbox?
I was woken at 5am on Sunday to a very loud noise, akin...
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 7 hours ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
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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 , 1 day ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
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RE: Forum updates, announcements & issues
I have been doing a lot of work on the site lately and ...
By Mars , 2 days ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 2 days ago
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RE: My Grant R290 9kW Heat Pump Installation
I am following this thread with great interest and than...
By TaffontheTaff , 2 days ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 3 days ago
