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Last seen: Aug 14, 2026
@jamespa Thanks for the help. Yes, I’m going to push for significant upsizing of all cold room rads, about 8 of them. Probably at least 50% greater ou...
@jamespa It was -7C here last night, the heat pump continued to behave exactly the same on/off, all it did was operate at an even higher output tha...
@jamespa Thank you, I appreciate the advice. I have a couple of cards that should give me some leverage and some hope that I can persuade them to...
@jamespa this afternoon I was told whom was being sub contracted to repeat my heat loss survey next week. When I checked him up he runs a plumbing ...
They’ve had a while to settle down and both read nearly exactly the same, within 0.5C. Therefore you were right, they are providing anomalous result...
@toodles thanks Toodles. That looks like the most probable explanation then. I’ve just taped mine on, I’ll give it an hour to let it all settle down, ...
@jamespa I’ll gorilla tape another one it to the side of the radiator then, somewhere near the inlet. Then compare both readings and get back to yo...
@jamespa they are IP54 data logging temp and humidity sensors that send a Bluetooth signal back to my computer. Rather than PT100 type RTDs. But, y...
Hence my question on the forum 😀 But what, is the question. The temp measuring devices I purchased are mid price range, not budget jobs. Ac...
Yes, that’s exactly what is happening. The only thing to add to it is that it’s a relatively spacious room at 110m3 in volume according to the survey,...
Thanks I will try to put it down chronologically. As background, here is my internal system, installed in an unheated garage. The only part you can’...
The heat pump unit I have, Samsung gen6 16kW mono, single phase. The manual states the nominal flow rate as 46.7 l/min, when I go and check my actual ...
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Degrees of Separation
Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 1 hour ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 1 hour ago
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RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 2 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
Any idea how efficient your gas boiler is? Is it a 50 y...
By Old_Scientist , 7 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 19 hours ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 1 day ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 2 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 6 days ago
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