Last seen: Jan 6, 2026
@lucia It would be interesting to know the volume of your system and typical flow temperature. Bob
Hummm......larger system volume would have more energy stored in the water so the bulk average water temperature reduces less when the defrost cycle h...
This is a very complex problem. I know with a gas boiler increasing the flow temperature makes the device burn more gas, but how does a heat pump ma...
Hello, TL;DR I think you have the weather compensation set too high at low OAT, try dropping the upper setting to 50C. I've been going over the d...
oh that's a shame. I was hoping I could learn something about the minimum duty your system can handle so I can optimise my design for low duty operat...
Thank you for the quick reply. I thought I saw you mention you had a plate exchanger in your system, which is why i asked if you had a drawing. Do y...
Hello there, I'm new to the forum. I see that cathodeRay has made many posts about his Midea ASHP does not seem to behaving properly, there are sever...
Mars hello there. I plan to go air to water and then into a home made HVAC air filtration "thing". I'm not really sure how it's all going to go toge...
Hello, new member here. I'm about to start my ASHP journey by using one to heat my garage/workshop space, I thought this might be a good place to st...
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RE: Please help with the settings ecodan
Are you trying to address any particular performance is...
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By Batpred , 2 hours ago
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RE: Experience - New Build / Complete New Heating System
Your sap clculations should give you a heat loss figure...
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RE: Vaillant aroTherm not heating with many faults
@editor hmmm, our engineers Rae, Craig, Naz, Rob and Ry...
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RE: Post-Traumatic Heat Pump Stress Disorder
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RE: Recommended home battery inverters + regulatory matters - help requested
Indeed! And my apologies, I should have expected you...
By Batpred , 3 hours ago
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RE: I’m glad the cold spell is over!
@editor as a reply for this date the 6th of Jan in o...
By Nursethescreens , 4 hours ago
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RE: Heat loss based on gas usage
@jamespa Thanks. The numbers posted above were jus...
By Bash , 5 hours ago
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RE: Heat pump not reaching flow temperature
I would describe this as either a fault or a configurat...
By JamesPa , 5 hours ago
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RE: New Daikin 11kW Altherma 3M install - is it working as it should?
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RE: Considering MLCP (Multi-Layer Composite Pipe) for ASHP
Thanks Mars and thank you for reaching out to so many p...
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: @davec Manufacturer: Peak Energy Mode...
By DaveC , 9 hours ago
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RE: Rate the quality of your heat pump design and installation
Well, the guy came out, turned the heat pump to max, we...
By razz , 9 hours ago
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Midea R32 setup and bizarre running with lengthy off periods?
Hi I am new to the world of ASHP and have just had a re...
By Countryman Helmsley , 9 hours ago
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RE: Setback savings - fact or fiction?
Given the weather has been relatively stable, the empir...
By Batpred , 10 hours ago
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RE: GSHP WOES! Midland based engineer recommendations?
@editor That is very kind! Thank you so much.
By johnbroome , 11 hours ago
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RE: ASHP Energy Consumption: Aira 12kW heat pump
@wally Hi I am not sure how large your house is b...
By TechnoGeek , 12 hours ago
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RE: Predicted Heat Loss & Needs from MCS calcs vs EPC vs actual
I've been thinking along similar lines to @tim441 from ...
By Sheriff Fatman , 12 hours ago
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Thanks, @technogeek. Good to hear about the accuracy. ...
By Majordennisbloodnok , 13 hours ago
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RE: Advice for a novice on Mitsubishi Ecodan 6kW
In my case it was a very specific pattern of behaviour ...
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