Last seen: Nov 7, 2025
@matenateson it's good. Welcome on board! We have a modest 3.6kW 9 panel array on a house which one company dismissed as 'not suitable for solar PV' b...
Hello @davesoa, some things I would cross check between different heat loss calculation estimates, in order of greatest influence on heat loss estimat...
Hi @editor, a lot of damp is mis-diagnosed as rising. Often it is penetrating damp through the fabric, common in older solid wall properties in the co...
That could be the case, depending on where the triple rad is in the circuit. We only have one triple on a 20 rad system, which is in a conservatory. T...
Timber framing that is dry lined can be a very effective noise amplifier to anything fixed to it. A good analogy is a carelessly mounted bathroom extr...
With BESS the ASHP is best. Charge battery for free from solar, then run ASHP in HW mode for an hour = free hot water + COP advantage that direct imme...
ASHP noise from the outdoor unit should not transmit through solid walls and DG windows to inside. You would hear it through open windows however. If ...
@holts Ah, now that's revealing! UFH downstairs + 50degc flow temperature must mean the installers are planning to using mixing valves on the UFH ma...
Hello @holts, a weather compensated flow temp of max 50degC via an ASHP is going to have quite a poor COP and be costly to run. If you can limit the L...
Octopus got back.... eventually.... today. For the period 12/01/24 to 10/02/24 they have billed me £313.18 based on their standard flexible tariff for...
Exactly as per @editor Mars. The smelly old oil boiler in our off-grid house was getting near life expired, although it cost us almost nothing to ma...
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RE: Is Your House Warmer Upstairs Than Downstairs?
Hi @grahamf, yes, exactly this. Unless you live in a ho...
By AllyFish , 60 minutes ago
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RE: My DIY Heat Pump installation
Well you certainly are a brave polar bear! A few co...
By GrahamF , 2 hours ago
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RE: Finding a Thermostatic Shower Valve That Works with Heat Pump Systems
And as best I can tell from the Sunamp details, the max...
By Toodles , 2 hours ago
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RE: When to use Octopus Intelligent Go tariff with my heat pump and battery
@treewizard Yes, I like the extra facilities that NetZe...
By Toodles , 4 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk downstairs rads are less prone to airlocks, you ...
By AgentGeorge , 6 hours ago
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RE: My Octopus Cosy 6 Heat Pump Journey: From Quote to Completion
@editor thanks for highlighting my name. Yes I did get ...
By Chansug , 14 hours ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
I don’t know if Aira did stop their 15 year guarantee b...
By Mars , 15 hours ago
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RE: balancing radiators with a mixture of different size pipework and a few undersize rads.
@editor Thanks for your input Mars. No I think the comm...
By baxtDave , 21 hours ago
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RE: Rate the quality of your heat pump design and installation
We’re looking to expand our list of recommended list of...
By Mars , 21 hours ago
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RE: Oil Boiler & Heat Pump Hybrid System
Thank you for those that replied, am disappointed that ...
By paultheheating , 1 day ago
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RE: RDSAP10 effect on existing heat pump EPC rating?
@transparent Along with the right workers, they can’t b...
By Toodles , 1 day ago
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RE: Midea ASHP – how to set weather compensation
I have just looked at my heat pump 'long interval' (27 ...
By cathodeRay , 1 day ago
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RE: UFH downstairs and radiators upstairs balancing question
@toodles sorry, my bad. Its a 6 port LLH. ...
By davidnolan22 , 1 day ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
Hello. The Ecodan pump worked well last season, but thi...
By meehow , 2 days ago
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RE: Jokes and fun posts about heat pumps and renewables
Did @mark-hall really just say that?! 🤯 He drop...
By Mars , 2 days ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
Oh completely, he even said without the hydrau...
By Crimson , 2 days ago
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We privatised electricity (back in the 80s I think) so ...
By JamesPa , 2 days ago
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RE: Electricity price predictions
So he must have a good team helping him in this.. ...
By Batpred , 2 days ago
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RE: Who has a V2G EV installation
Would that be a Chint RCD perhaps? Have a look at thi...
By Transparent , 2 days ago


