
Last seen: Aug 7, 2025
Apologies for re-introducing this topic. I was persuaded by contributers on this forum, that I should remove the second CH pump and change the functi...
My DHW tank (heated from an ASHP) is on to ground floor and water displaced from the hot water feed pipework, would be pushed along the cold water pip...
Thanks Ian. The type of purpose-made unit I have in mind is on many YouTube videos and is fitted with T's into the hot and cold supply under the sin...
The maths attached to a cost analysis of this approach sounds daunting. It seems to me that there are two variables that would need to be evaluated...
Thanks Gary. That is a new, and interesting bit of inside information that I am pleased to learn. I think this may be useful in balancing the radiator...
I am finding that this topic is becoming more complicated than I can handle. As I understand the Ecodan Hydrobox, it has a single pump with 5 speeds...
Derek M is correct in that the Ecodan has a 5 speed pump and this is currently set at max of 5. I was just hoping for a meaningful measure of performa...
By "taking the buffer tank out of circulation" I mean removing the secondary pump and using the buffer tank just as a volumiser
Thanks JamesPa - have only just picked this up. I have the contractor visiting who is primarily a solar installer but he added the DHW system and I ...
Thanks Derek M for the further update. I have approached the contractor that installed the DHW system (including the 3 way valve) and he will make the...
@derek-m You would be most welcome and 3 bedrooms available. I would consider it good value!
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RE: Is your heat pump insured?
My home insurance renewal is due soon meaning I am doin...
By cathodeRay , 18 hours ago
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New Vaillant aroTherm Plus in black - When will it come to the UK?
It looks like Vaillant are updating the aroTherm plus l...
By Sandy , 20 hours ago
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RE: Planning Permission May 2025
Fair enough. I have read the legislation and MCS020a ...
By JamesPa , 21 hours ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
Ive called most of them over the years. By far the best...
By dgclimatecontrol , 21 hours ago
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RE: How do I choose a single room MVHR to prevent losing heat in my bathroom ?
An update on the Heatsava. It is the most difficult thi...
By heat-pump-newbie , 1 day ago
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RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
I've certainly seen that on their Ts & Cs page but ...
By Majordennisbloodnok , 2 days ago
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RE: ASHP heat output monitoring
@carlo - not much better, is it. It looks more like a u...
By cathodeRay , 2 days ago
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RE: Renewables & Heat Pumps in the News
this document extensively describes (in a non-blame, ne...
By Judith , 2 days 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 , 3 days ago
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
@dgclimatecontrol I don't know, but they were not happy...
By DavidAlgarve , 3 days ago
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RE: Why do we need pressurised systems?
A good question @toodles. My old open thermal store and...
By AllyFish , 3 days ago
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RE: 300 Liter Tank - Do I have to heat it all?
Cross references for @martingale Background discussi...
By Transparent , 4 days ago
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@ecobaker May I ask a question of you please. I too hav...
By Papahuhu , 4 days ago
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It's unclear to me how the Smart Control project work b...
By Transparent , 4 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....
By Mars , 4 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
We had an excellent four months (11/3 to 15/7) generati...
By JulianC , 7 days ago
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RE: Is this just haze or something more?
I think the present somewhat cooler hazy days show the ...
By Judith , 7 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 , 7 days ago
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I think it is very much me that is sitting outside the ...
By Grantmethestrength , 1 week ago