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Last seen: Mar 17, 2025
@derek-m I've turned the whole system off now as that pump starting to make strange noises and I was getting quite freaked out. This does however mean...
Hi Derek, It's a Vaillant Arotherm plus. The ciculation pump is a Wilo. The UFH is off, and so are the rads, so I don't get why it's even running, t...
@mikefitz Hi, and these systems shouldn't need to even use the immersion at this time of year I think? It's a good idea to do comparisons, that's what...
I had the electrician back out today to look at the immersion, as I had reported it coming on alongside the heat pump during regular heating of the ho...
Oh no @editor Am I right in thinking you have the Arotherm plus also? I'm using a portable radiator and boiling kettles again at mo until this immersi...
Hi @KevM It was installed by an accredited installer but I don't understand why they sized this pump at 5kW when my old Dimplex was 12kW. It is a hig...
There are quite large areas of floor that feel cold underfoot so I do suspect a problem. The system has replaced an old Dimplex ASHP and I don't remem...
Thanks @editor and @derek-m I have the uniSTOR 200lt tank and I think the pump is a Wilo Circulation pump? The noise is quite difficult to describe,...
Hi all, I've recently had a 5kW Vaillant Aerotherm plus installed (3 bed new build) which runs DHW and UFH/rads. The hot water side appears to work ...
Latest Posts
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
MCS aren't involved in commercial a2a installations whi...
By JamesPa , 2 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Interesting. Perhaps wait and see how things develop! ...
By JamesPa , 2 hours ago
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Any readers with an interest in Solar Farm generation i...
By Toodles , 2 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
Yup! Summer in Spring. Wonder if Summer will last unt...
By Majordennisbloodnok , 3 hours ago
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RE: Solar Produced vs Home Consumed
It's worth adding that if you have a hot water tank and...
By JamesPa , 4 hours ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@editor Sorry Mars, I didn’t see a notification about ...
By Toodles , 5 hours ago
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RE: Hitachi Heat Pump being replaced with Vaillant
Yes to be configured as a volumiser. The pump is to be...
By trebor12345 , 5 hours ago
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RE: Anyone concerned about GivEnergy?
So it seems subscription day has finally arrived for Gi...
By TechnoGeek , 6 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
By JamesPa , 9 hours ago
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 9 hours ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 22 hours ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 1 day ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
