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Last seen: Jun 27, 2026
@jamespa the installer did fit primary pro flexis which aren’t that flexible. Because they had to move them as they were bending them which the manufa...
@jamespa They came and after a bit of push back accepted my idea to put all 4 sensors in the same place indoors and wait for them to balance. Now hav...
Got Vaillant coming on Monday. Any tips on how to get them to sort the sensors and humming sound in the house?
@simonf I’ll give it a go. I’m a bit worried they will try and charge me though as been warned by them in the past when the installer tried to arrange...
@editor I find this sort of response from the manufacturers to only reinforce news outlets like GB news view of heat pumps. They ran a story recently ...
@agentgeorge that would be a great idea. My installer knows about my problem but isn’t sure how to fix as I’m guessing they don’t want to buy a pile o...
@simonf I did try swapping them twice and in both cases the gap increased by 0.2 to 0.3 compared to the shipped position error of 0.5/6. ive tried c...
So it seems probably most of the issues I’ve had are down to bad flow and return sensors. With them swapped around I’m now getting what I can only ass...
@agentgeorge if it is i need to somehow tweak it to match as its confusing the heat pump. 0.5c apparently skews the cop by about 25% up or down depend...
on the batteries front i would defo get to at least 24kwh. the solar will help to a degree in stretching the capacity as it can add some during the da...
ive got the installer coming Monday to fix an isolation valve the previous engineer damaged by not installing the strainer retaining ring in the right...
@toodles im on Good Energy's EV tariff. its about the last that doesnt require and EV. hopefully it doesnt get cancelled.
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Degrees of Separation
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 , 5 hours ago
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@toodles possibly. The £9k labour charge for 4-5 days w...
By AndrewJ , 9 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 , 13 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 , 1 day 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 , 1 day 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 , 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 , 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



