Last seen: Nov 8, 2025
I persuaded my installer that heat loss from the adjacent hallway plus steam when you actually take a bath/shower was sufficient (in order that we did...
@sandman1600 just looking at the plots here it looks to me like there is in fact a range of outside temperatures where it does not cycle, casting doub...
If you think your heat loss is between 4.5 and 8.5, the r290 is probably a goodun because of its.unusually large modulation range, due to having two c...
Further to the above here is a template for what you might say if you wish to decline sign off. ? indicates info from melcloud or elsewhere, or refer...
I should add that I still think you can get it working well as it is, so if you don't think it's worth trying to press the installer then let's focus ...
@sandman1600 Whilst I agree with hat you may end up batch heating at a higher ft, at this stage I would continue to get to the ft that just heats th...
That's important. Hold onto it, gather any evidence. If somehow that can be combined with operational evidence then you may have a chance. Does m...
If you are going to have the discussion with the installers then I have some thoughts: it may be worth waiting until you have more data and have t...
@sandman1600 PS. I just checked your EPC, Its F rated with the potential for D. Its interesting to note that much of the fabric is 'assumed' ie t...
The total at the bottom of the 'heat loss calculations' column is why they specced 14kW. I note that the design FT is 45, which begs the question - w...
Im sorry to hear about the stress, just bear in mind that this is an expensive time of year, you wont be paying for heating at all in Summer, and ther...
@sandman1600 Id be interested to hear how are things going in terms of flow temperature and stability of house temperature? You may find that, as yo...
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@jamespa Thanks again for your reassurance. Rob
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RE: My DIY Heat Pump installation
This is very kind. However software is not really my ...
By Polar bear , 19 hours ago
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RE: Request for feedback on where we're at with our quest to get an ASHP or ideas.
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RE: balancing radiators with a mixture of different size pipework and a few undersize rads.
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We’re looking to expand our list of recommended list of...
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RE: RDSAP10 effect on existing heat pump EPC rating?
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