Last seen: Oct 1, 2025
@grantmethestrength I am sorry you have not had an optimal service. The FRV valves MUST be installed on the return of the radiators, we had a problem ...
@adamk Where is your pump connected to? What pump valves are on the pump? What diverter valve are you using? Vibration in pipes usually comes from val...
It may be pushing 40l/min, but where is that water going, maybe through the first 2 radiators and very little to the rest?
If you do not have enough flow due to small pipes, like Mars's installation, you may need more pressure and flow than the unit can provide. Are you su...
@rhh1 Adding a second pump is not a problem, some units have a control for a second pump as this one does. When you add a second pump, it must either ...
All done, pressure is off as adequate flow is achieved at all radiators 😀 It was touch and go but all sorted.
@editor No pressure then 🤣 🤣
It will improve performance, but by how much depends on the design of the system. If you are installing SLINKEYS (coiled pipe, not straight pipe runs,...
@prunus, @jamespa is correct, but removing the buffer could possibly halve your heating bill, possibly more. You have admitted that you have no idea ...
@bart That is terrible and a clear breach of the building regulations, and therefore a breach of the law. The CPS is neglecting its duty to you as a m...
@bart Stinks of corruption.
@jamespa Good idea, it will have to be fast, I can get it directly into DESNEZ where it will be heard. I will send a message to @editor now.
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RE: If a heat pump can only heat DHW to 50C then what? Issue with 18KW Heliotherm heat pump
Hi, Nothing yet. I've asked customer to measure flow...
By errmm , 3 hours ago
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RE: High Temp Heat Pumps for fast warm-up of house
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By JamesPa , 4 hours ago
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump
OK. What Im seeing looks fairly normal TBH: 1 start ...
By JamesPa , 5 hours ago
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RE: Vaillant Tech Support Flagged Low DT: UFH Return Cold, Suspected Zero Flow
@editor thanks for the tips which I will try before cal...
By DavidB , 6 hours ago
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RE: Daikin 6kw setup with Dixell controller
@jamespa Many thanks for your reply, a very detailed an...
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RE: Exploring the role of alternative clean heating solutions - Government Consultation
Despite reservations, I found some time to respond to t...
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@crankplus, nope, still not, and I've followed up with ...
By Mars , 7 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@agentgeorge Probably, but temperature change at -10 ha...
By AndrewJ , 8 hours ago
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RE: External wall insulation - your experience
To be clear, my experience was very positive. The journ...
By Batpred , 10 hours ago
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@foxesfan Re: ‘Servicing’ as @editor has covered in his...
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RE: A Smarter Smart Controller from Homely?
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RE: Battery sizing - How low can you go!
It seems I am seeing something similar to what you do, ...
By Batpred , 11 hours ago
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RE: Gaslighting in the heat pump industry – has anyone else experienced this?
Don’t know if this is relevant to this thread, but my A...
By Gruff2001 , 12 hours ago
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RE: Bosch CS5800i 5kW - Experience So Far
@majordennisbloodnok While getting Home Assistant runni...
By Steelbadger , 1 day ago
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RE: MCS - BS EN 12831-1:2017 – Heat Loss Survey
Since May 2025 it no longer a requirement in England to...
By JamesPa , 1 day ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handel @jancold Manufacturer: Daikin Model: E...
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump
I have been wondering that myself. The fact is that, ...
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RE: Filtering Tap Water – Share Your Setup for Cleaner, Better-Tasting Water
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RE: Setback savings - fact or fiction?
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