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Last seen: Aug 24, 2026
A great idea, very useful tool. 🙂 Another example. In this one the wording does not seem perfect. "Sizing sense check Heat loss of 5.1 k...
Thanks for the clarification. Slightly concerning OEM approach, would need to look into the Grant warranty cover carefully.. We plan to have a s...
So our heat loss survey came up at 5.1kW on the coldest -2C day. The installer surveyor is still recommending the 7kW Arotherm. I had a look atthe low...
I missed this @temperature_gradient . I wonder if any other manufacturer has this as an add-on..
A bit of a leap of faith, then? Some accountants can get very excited about each and every section of pipe will deliver a return. It helps to have tha...
You make a great point to the value of continuity in service operation! 😉 These days, the site manager may move around too much to keep such k...
That's what I sensed BG would be great at! We may end up getting a few extra pipes if we get a chance. But I seem to be on my own on excitement wit...
Just to add that the team ahead of our selection know very well what they do, it is just that tight budgetary constraint..
We are evaluating the Grant R290. Just because some installers seem to be able to deliver them at well below the cost of Vaillants and the like. Ju...
@jamespa Need to find a good thread on the effectiveness of WC control approaches.. Particularly for Vaillant, Mitsubishi and Grant
That is also my sense, @bash . As silly things can be done to extensions of heating pipes over the lifetime of a building... There may be heating s...
Yes @bash , aside not having them install, what I saw was truly impressive! Additionally to being absolutely fantastic technically, he was very consid...
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Latest Posts
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
Volumisers are normally plumbed so that they are in the...
By JamesPa , 1 hour ago
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@toodles possibly. The £9k labour charge for 4-5 days w...
By AndrewJ , 6 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 , 10 hours 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 , 23 hours 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 , 23 hours ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 1 day ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 1 day ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
There is scope for product development here. I for one...
By JamesPa , 1 day 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 , 2 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 , 5 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 , 5 days ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 5 days ago



