Last seen: Sep 14, 2025
@alec-morrow I agree, but there are two different things people use controllers for. One is temperature control, ie the core control loop of when to...
@ianjrw As mentioned above, can you ask your installer about using the heatpump's own controller? What brand of heatpump are they suggesting? Let m...
I don't know yet. Let me explain... I was in exactly the same situation 3 months ago - lead times on the Ecodan cylinders were out to 12 weeks and ...
@derek-m The integer overflows are just warnings, and I don't think they're the source of the problem. It seems to be saying is the program is too bi...
I need to work on my Hungarian, but some wild guesses that it could be either a problem with communication with the Arduino - perhaps the programming ...
It's completely nuts. This is the compressor speed of my Grant (aka Chofu) ASHP, using the Honeywell Lyric on/off controller the installer supplied. ...
To add, another thing is the sensitivity of the occupants. I specifically chose a larger double-fan heat pump because it was quieter (60dB) than a sm...
Hi Mars, I can't help but feel conflicted about this. I'd say there are several factors in play for a heat pump install. Site: the type of hous...
An alternative approach to using glycol is to use anti-freeze valves. Basically you put these at the lowest point of the ASHP outdoor circuit, and th...
You will probably need to talk to distributors, since they aren't typically a part stocked in everyone plumbing warehouse. Orion Air Sales have the F...
The way Grant do it, they have a traditional heating thermostat (like a boiler) to provide 'heat please' and 'hot water please' inputs to the heat pum...
At the end of the day it's all about tariffs. Might not be the cheapest, but a tariff to suit your use case - eg cheap EV charging overnight. Obviou...
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RE: Mitsubishi Ecodan F8 error
I absolutely love this. This is the quintessential heat...
By Mars , 5 hours ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@papahuhu at the end of the day if you are happy with h...
By benson , 10 hours ago
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RE: Can you recommend a Mitsubishi service engineer in the Rochdale area?
@dgclimatecontrol We'll all need annual servicing. How...
By Suzy-shadow , 10 hours ago
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RE: Renewables & Heat Pumps in the News
@transparent I’ve understood your point now. The point ...
By Judith , 11 hours ago
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RE: Octopus tariffs - a quick comparison
Does indeed need checking, @tim441. Neither Homely ...
By Majordennisbloodnok , 11 hours ago
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RE: How not to install a heat pump
Delighted to hear that the buffer has been replumbed as...
By JamesPa , 12 hours ago
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RE: Daikin 9kW to 8kW Swap Offer from Octopus
Yes but 9kW is similarly the 16kW derated. So 8kW subs...
By JamesPa , 14 hours ago
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Actually, there's a rather greater degree of cattle-her...
By Majordennisbloodnok , 14 hours ago
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RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@davidnolan22 So far as I can tell from the 'other p...
By JamesPa , 18 hours ago
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RE: 5 Star Service from Havenwise
I keep getting havenwise ads on my Facebook feed, so cl...
By benson , 20 hours ago
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Automation options to maximuse efficiency & ToU tariffs
I started a conversation with ChatGPT. What automation...
By Tim441 , 1 day ago
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RE: 4 Year Ongoing Heat Pump Battle With Poor Heat Pump Installation
@jamespa Oh, I know some that are good and some not so....
By ASHP-BOBBA , 1 day ago
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RE: Samsung Heat pump with Yonos Pico circulating pump running all the time
I don't know how many pumps you have but I guess it's o...
By JamesPa , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
That's just human nature unfortunately, not special to ...
By JamesPa , 1 day ago
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@bontwoody how long has it been now since you started t...
By Mars , 2 days ago
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RE: Bosch CS5800i 5kW - Experience So Far
Yes, over the last few days I've been keeping a very cl...
By Steelbadger , 2 days ago
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Absolutely. I am one of those members and I most certai...
By Majordennisbloodnok , 2 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@darrell-p There's another new Forum Member, @wully who...
By Transparent , 2 days ago