Last seen: Aug 25, 2025
I agree with @toodles. By way of a direct answer to your question, so you have a good reason to reject them and look elsewhere. I adopted the appro...
It provides extra system volume which is useful for defrost but may well not be necessary. Have you any idea what volume of water you have in your se...
@anca1808 Just to give you some comfort and set expectations, my Vaillant heat pump is working out 13% cheaper than gas on a like for like basis, over...
Maintain the LWT by adjusting its heat output (if the required power is within its modulation capabilities) This is surely OK. Its adjusting...
Im sorry but I think you are getting confused. The statement above is either not correct or there is something wrong with your system that needs to b...
I cant remember what your WC curve showed, but it should follow that. This is only a few degrees change given that OAT doesnt vary that much Wit...
OK I found the original post about 4.88kW and I also agree with @editor above. Firstly It wont help to operate with the thermostat as opposed to on ...
Im sorry to hear about your troubles but its definitely good that the buffer and secondary pump has been removed. You are on the right path, keep the...
The Mitsubishi R29O pump has 2 compressors to achieve exactly that. Sofaik the only domestic one so far to do this
@anca1808 Lots of ideas above about what could be causing your issues. Nobody, including me, can be definitive because we don't have your system in...
I concur in principle with @old_scientist however there are some points to consider 1. your house has a heat input other than the heating, due to wa...
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RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
As a potential heat pump customer, it would be good to ...
By Temperature_Gradient , 12 minutes ago
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A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
I felt it would be helpful to share some lessons about ...
By GrahamF , 27 minutes ago
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RE: Mitsu Wireless Controller and MelCloud
Hi David We have an FTC7 but the settings seem to be ...
By RobS , 6 hours ago
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RE: Octopus replacing the fixed 15p/kWh export rate with a market tracking one
@trbob I have just extracted the details for Agile Expo...
By Toodles , 7 hours ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
The Ultimate Guide to Heat Pumps is less than a month a...
By Mars , 8 hours ago
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RE: Rodents! A word of warning for heat pump owners
@tim441 Or as they didn’t quite say in the space travel...
By Toodles , 14 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor Hi Mars, We have just installed a Grant Aerona...
By GrahamF , 1 day ago
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RE: Sanity check please. Battery storage and inverter sizing.
There are MCS guidelines about how close to the edge/ri...
By Old_Scientist , 1 day ago
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RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I estimated our usage on the following basis. The mos...
By Old_Scientist , 1 day ago
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RE: Why so many sigenergi installer recommendations?
It’s a really simple answer, GivEnergy. Installers ...
By SAEnergy , 1 day ago
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@editor Something changed in this last 12 months, they ...
By ASHP-BOBBA , 2 days ago
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RE: Ecodan & MelCloud scheduling
I put the above question to Mitsu UK at the sme time as...
By DavidAlgarve , 3 days ago
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Thanks for the heat geek info. I've fitted my own heat ...
By bontwoody , 3 days ago
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RE: Does anyone have experience of a smart water meter?
Just to give a sense of scale, I've used the CCW water ...
By Majordennisbloodnok , 3 days ago
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RE: Powerwall 3 or Myenergi or something else?
We have a Tesla Powerwall 3, recently installed, so I m...
By Old_Scientist , 4 days ago
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RE: Mitsubishi PAR-WT60R-E Wireless Controller installation
@morgan They have been paired once but it was thought b...
By DavidAlgarve , 5 days ago
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RE: Isolating the system for a planned power cut
A great many ground-mounted local substation transforme...
By Transparent , 5 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Having bit the bullet and paid £250 for a service, our ...
By Old_Scientist , 6 days ago
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New heat pump heating system underperforming in Italy... Advice needed!
hi all, first post! I've just renovated a house in sout...
By robinlawrie , 6 days ago
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RE: Anyone still weathering it out with Agile?
I went to Agile when I had solar installed July last ye...
By NJT , 1 week ago