Last seen: Jan 6, 2026
OK, I calculate a flow of about 1.9m3/hr in the secondary circuit. This is the Grundfos web page for the pump data: You said CC3, that gives a ...
Hello. OK, I've plotted your PEX data in the attached spreadsheet. The data shows your PEX is pinched between Prim_in and Sec_Out. That means the ...
Hello, A quick reply, I need to go out but will be back later. You said the plate exchanger was installed non-countercurrent. Please can you post a...
@cathoderay thanks for sharing that data. There's not much numerical analysis I can do with it because I need to know 1 flow. Please let me talk (t...
Ahhhh.... When your system is operating at it's equilibrium point the energy from the heat pump is released into the room by the radiators, but ther...
Right, this carries on from this post (Hopefully I got that right). How can I sanity check the amount of ice accumulating in an 8kW ASHP? I th...
@cathoderay, darn it. I missed your comment about room temperature. I've also worked out your primary system volume, 20L. That's small. You have ...
@transparent Thank you for that suggestion. I had seen that type of unit. They fall under the F-Gas regulations in the UK, because there's a refrige...
@cathoderay thank you for the data. It includes information on the fan speed, that's helpful! The data show's your room temperature is 25C and never...
@cathoderay thank you for sharing the most resent set of data, I'll work through that. Are you able to create a table of numerical data, or can you o...
Evening all, An air to air heat pump system might be a possible solution, but I'm not F-Gas registered so couldn't install one. I'd like to keep co...
@transparent Hello. This will not be covered on any grant scheme, I'll be paying the full cost from own pocket 😉 The garage / workshop is a stand a...
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RE: Vaillant aroTherm not heating with many faults
@editor hmmm, our engineers Rae, Craig, Naz, Rob and Ry...
By ASHP-BOBBA , 34 minutes ago
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RE: Post-Traumatic Heat Pump Stress Disorder
@editor Hi Mars. I totally agree with your comments. ...
By Richard24738 , 38 minutes ago
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RE: Recommended home battery inverters + regulatory matters - help requested
Indeed! And my apologies, I should have expected you...
By Batpred , 54 minutes 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 , 2 hours ago
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RE: Experience - New Build / Complete New Heating System
@bash you and me both, can agree. Nothing like shooti...
By vincro , 2 hours ago
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RE: Heat loss based on gas usage
@jamespa Thanks. The numbers posted above were jus...
By Bash , 2 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 , 3 hours ago
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RE: Solis inverters S6-EH1P: pros and cons and battery options
@batpred I started reading this thread thinking I would...
By Hook , 4 hours ago
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RE: Please help with the settings ecodan
@sheriff-fatman when I increase it to number 3, the ...
By nose1972 , 5 hours ago
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RE: New Daikin 11kW Altherma 3M install - is it working as it should?
I forgot to mention: Octopus measured our heat loss at ...
By Toodles , 6 hours ago
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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...
By iotum , 6 hours ago
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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 , 6 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 , 6 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 , 7 hours ago
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RE: Setback savings - fact or fiction?
Given the weather has been relatively stable, the empir...
By Batpred , 7 hours ago
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RE: GSHP WOES! Midland based engineer recommendations?
@editor That is very kind! Thank you so much.
By johnbroome , 8 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 , 9 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 , 10 hours ago
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Thanks, @technogeek. Good to hear about the accuracy. ...
By Majordennisbloodnok , 10 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 ...
By Sheriff Fatman , 11 hours ago

