Last seen: Feb 14, 2026
@editor The firm that invented/developed the Immersun was a PV/solar thermal/renewable energy installation company based in a small town in norther...
We have a 5kw Aerotherm feeding an existing UFH manifold plus one radiator. Our flow rate is also 860 lph and the system is performing beautifully w...
@davidb Hi, if you haven’t already done so then have a look at the link below and in particular read the bits about active, inactive and e...
We are in an extremely well insulated (virtually passive) all electric house - we self built it in 2011. We have a full fat 3.68kw full-fat FiT pV s...
We self built in 2011. The ground and top floors are each around 100m2 The house is extremely well insulated with U values as follows, walls=0.15, r...
@ashrolls Air circulating in the system will confuse flow meters and create noise.
We have both. The advantage of A2A is a very rapid response and the ability to cool in the summer - our A2A is for the south facing rear of the hous...
Our BUS voucher was due to expire the working day prior to the installation date so our supplier cancelled the voucher and applied for a new ...
@jamespa our install was mid September 2025, we had the MCS questionnaire a few weeks later.
@editor I rather suspect that there will be several outcomes;- 1) Installation of ASHPs into the existing housing stock will radically slow down....
If you could get hold of a Stainless steel container of Vitrified High Level waste, then it has a heat output of around 2KW. There are difficulties ...
Latest Posts
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Struggling to get CoP above 3 with 6 kw Ecodan ASHP
I've been using this heatpump for two winters now and a...
By GoodbyeGas , 6 minutes ago
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RE: Humidity, or lack thereof... is my heat pump making rooms drier?
That would make sense. I've found the effects are prett...
By Majordennisbloodnok , 17 minutes ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@benson — as @tasos suggests, plotting multiple variabl...
By cathodeRay , 1 hour ago
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@painter26 — as @jamespa says, it's for filling and re-...
By cathodeRay , 2 hours ago
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RE: Oversized 10.5kW Grant Aerona Heat Pump on Microbore Pipes and Undersized Rads
@uknick TBH if I were taking the floor up ...
By JamesPa , 13 hours ago
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RE: What determines the SOC of a battery?
@batpred Your BMS parameters will be the same as m...
By Bash , 14 hours ago
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RE: Getting ready for export with a BESS
I would have not got it if it was that tight
By Batpred , 15 hours ago
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RE: Setback savings - fact or fiction?
I also need to correct something I said by mistake earl...
By cathodeRay , 15 hours ago
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RE: Electricity price predictions
@judith Thanks for sharing, and nice to see how the ...
By Batpred , 16 hours ago
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump
@judith thanks Judith. Confirmation appreciated. The ...
By DavidB , 18 hours ago
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RE: Recommended home battery inverters + regulatory matters - help requested
That makes sense. I thought better to comment in this t...
By Batpred , 18 hours ago
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Bosch CS5800i 7kW replacing Greenstar Junior 28i
My heat pump journey began a couple of years ago when I...
By Slartibartfast , 19 hours ago
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RE: How to control DHW with Honeywell EvoHome on Trianco ActiveAir 5 kW ASHP
The last photo is defrost for sure (or cooling, but pre...
By JamesPa , 20 hours ago
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RE: Plug and play solar. Thoughts?
Essentially, this just needed legislation. In Germany t...
By Batpred , 21 hours ago
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RE: A Smarter Smart Controller from Homely?
@toodles Intentional opening of any warranty “can of wo...
By Papahuhu , 22 hours ago
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RE: Safety update; RCBOs supplying inverters or storage batteries
Thanks @transparent Thankyou for your advic...
By Bash , 23 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: Odd_LionManufacturer: SamsungModel: Samsu...
By Odd_Lion , 23 hours ago
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RE: Configuring third party dongle for Ecodan local control
Well, it was mentioned before in the early pos...
By F1p , 2 days ago
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RE: DIY solar upgrade - Considering adding more panels
I know this is a bit old, but it made me wonder what co...
By Batpred , 2 days ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@majordennisbloodnok Daikin, take note! (In fact, I hav...
By Toodles , 2 days ago
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RE: Midea ASHP – how to set weather compensation
@mk4 — good work! First, I agree, no evidence of cycl...
By cathodeRay , 2 days ago
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RE: Solis inverters S6-EH1P: pros and cons and battery options
I don't know about Solis inverters. It isn't a featur...
By Transparent , 2 days ago
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Daikin Altherma 3 H HT - Freeze Prevention Threshold
Hi. We have an Altherma 3 HT (18kW I think) which, now ...
By RICHARDF5033 , 2 days ago
