Last seen: Dec 6, 2025
@transparent the eFiXX team posted s youtube video earlier this year on this subject. "We set out to do what no one should: try to destroy a lithium ...
@batpred my understanding is the current limit for hydrogen within the natural gas network in GB is 0.1% by volume, as set out under the Gas Safety (M...
@batpred This is part of the aims of the regulation (5) This Regulation aims to facilitate the penetration of renewable gas and low-...
@jeff You seem to have a grasp of all things regulatory, so what's you view....should we be keeping an eye on what our European neighbours are doing a...
@trebor12345 Yes, expect defrost cycles to initiate at evaporator temperatures between -20 and -35 degC depending on refrigerant gas, plant design and...
For an air-source heat pump the minimum evaporating temperature depends on the compressor design and the manufacturer’s operating envelope. Typical...
@crimson This youtube might be of help The narrator's voice sounds kind of familiar 😂
You might want to consider the following common faults: Air in the System/Pipes (Air lock): This is the most common problem. Trapped air prevents wa...
@paultheheating How do you currently recoup the oil cost from the tenant and who pays the electricity bills? My understanding is the BUS grant is du...
@jeff The cost of an electric motor is pretty insignificant compared with cost of electricity it consumes in its operational lifetime. The cost of ins...
@jamespa I think you are right about a hotel type hot water feed. Hot water seems to return, see the secondary return shown in this section of dia...
@paullacey From the diagrams I assess you have 2 heat pumps plumbed in "tandem" but controlled in "cascade". What the second heat pump can do is the s...
Latest Posts
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RE: Rate the quality of your heat pump design and installation
HistoryFeb 25 - 9.5Kw 20 panel South Facing Solar Array...
By SteveT , 8 hours ago
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RE: What a Bad Heat Pump Installation Looks Like
@cathoderay There is always the 7.62 1in5 link of socia...
By Grantmethestrength , 9 hours ago
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RE: Home energy storage & battery register
Now the proud owner of: 4.1Kw peak Aiko Neostar solar...
By TechnoGeek , 11 hours ago
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RE: The good, the bad and the not that great – my heat pump installation
I did, thanks, and thanks to for reminding me I should ...
By cathodeRay , 12 hours ago
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RE: Latest NIBE model has known defect and no solution
@kings I don’t I’m afraid as I submitted it through my ...
By richardpool , 13 hours ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
Aira called me back today, but not sure we got to the a...
By ChandyKris , 18 hours ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
That level of cycling is normal and absolutely nothing ...
By JamesPa , 22 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
@hcas Hello Henri. It is disappointing, but I must pres...
By DavidAlgarve , 2 days ago
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RE: Experience with Mitsu Par 50/60 Wireless Controller
The 27°C request doesn't boost the weather compensation...
By Sheriff Fatman , 2 days ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?
Oh and it was installed by Stevie Wonder!
By Grantmethestrength , 3 days ago
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There seems to be plenty of evidence to support this. ...
By JamesPa , 3 days ago
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RE: One Year Review: Grant 13kW ASHP - A Catalogue of Errors
@solenoid it sounds like you are making progress. No n...
By JamesPa , 3 days ago
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RE: How good is the app support for your heat pump?
I think you are right about the ebus stick. It's cert...
By JamesPa , 3 days ago
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RE: My DIY Heat Pump installation
@majordennisbloodnok Element-ary my Dear Major.
By Toodles , 4 days ago
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Welcome to the forums @isaac. What you’re describing is...
By Mars , 4 days ago
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Win an Eve Smart Home Bundle worth over £350!
Win an Eve Smart Home Bundle worth over £350! ...
By Mars , 4 days ago
