Last seen: Feb 19, 2023
@soniks FYI we have all brand new pipework and its 28mm, we have the volumiser with the heat element in it and we are getting flow rate of 32 with rad...
We have a 1920's house with a new big extension. We externally insulated and rendered the existing house with 70mm celotex along with high quality mod...
there is a single pipe in which is primary from ASHP and a single return pipe ... primary circuit is on the right as you face the LLH .... secondary i...
First picture shows a symbol not in the manual (as far as I can tell) so wondering if this is the supplementary heating in defrost cycle. The next p...
Important was that box EP001 was wired and it turns off the master valve supporting DHW prioritisation (which it wasnt at first) ... this now works an...
FYI the Grant combined volumiser / low loss header in my system has an immersion. The immersion doesnt connect to EP001 and instead connects directly ...
For the last month I have taken daily meter readings, for my 17kw grant ASHP the least usage being 25th Dec with 37kw/h, the worst being yesterday at ...
As I dont have an electric car and averge less than 30% electric between 00:30 and 6:30 I decided to switch from Economy 7 to single tariff .... now I...
thanks Derek, we do have a LLH my understanding thats to provide hydraulic seperation of primary and secondary circuits and cope with having multiple ...
The TM1 was 45 degrees ... my understanding is this is the max flow temp at -4 degrees for the weather compensation ... I reduced to 40 to try and see...
Hi @derek-m From the original spreadsheet before the reneuvation project started This was based on heating flow temp of 50 degrees due to upstai...
Hi @AllyFish, thanks for the detailed reply, ... I had no idea of the defrost details .... answers follow "17kW ASHP. Who sized it & on what...
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RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
Agree. To me it misses the obvious fit namely 'se...
By JamesPa , 2 hours ago
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RE: Renewables & Heat Pumps in the News
this document extensively describes (in a non-blame, ne...
By Judith , 2 hours ago
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RE: Planning Permission May 2025
In England that is no longer the case although you have...
By JamesPa , 14 hours ago
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RE: ASHP heat output monitoring
As you know, you need the flow rate to do that, and I t...
By cathodeRay , 18 hours ago
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RE: Ecodan - Legionella Operation Time and Target Temperature
Once the white plastic cap is removed, my immersion loo...
By Old_Scientist , 23 hours ago
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
@dgclimatecontrol I don't know, but they were not happy...
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RE: Why do we need pressurised systems?
A good question @toodles. My old open thermal store and...
By AllyFish , 1 day ago
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RE: 300 Liter Tank - Do I have to heat it all?
Cross references for @martingale Background discussi...
By Transparent , 2 days ago
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@ecobaker May I ask a question of you please. I too hav...
By Papahuhu , 2 days ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
@terry1812 Oh Good! Pleased to help if I can! Regards, ...
By Toodles , 2 days ago
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It's unclear to me how the Smart Control project work b...
By Transparent , 2 days ago
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RE: Have Consumers Been Lied to About the Efficiency of Heat Pumps Made in China?
@pavel, this isn't about discrediting Chinese products....
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RE: Solar Power Output – Let’s Compare Generation Figures
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RE: Is this just haze or something more?
I think the present somewhat cooler hazy days show the ...
By Judith , 5 days ago
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RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
All noted and accepted and as I say I am sorry that you...
By JamesPa , 5 days ago
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I think it is very much me that is sitting outside the ...
By Grantmethestrength , 5 days ago
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RE: Who's your electricity provider and what's your tariff?
Aggregators have been recognised for many years, and it...
By Transparent , 6 days ago
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RE: Help me keep the faith with my air source heat pump installation
Great news I edited my previous post (probably af...
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