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: Say hello and introduce yourself
We may not know the regulations which apply to installa...
By Transparent , 6 minutes ago
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This is my current set-up, with some experimental thing...
By DREI , 24 minutes ago
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RE: Isolating the system for a planned power cut
@transparent Just wanted to share this link that Sol...
By Batpred , 1 hour ago
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RE: Heat loss calculations and how they work in conjunction with heat pump sizing
Buffer tanks can best be thought of as part of a 'produ...
By JamesPa , 1 hour ago
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
This is often a problem when units are installed under ...
By dgclimatecontrol , 2 hours ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
@jamespa This is a 4 port buffer tank.
By ChandyKris , 2 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
@hcas Thank you. Much appreciated. So, once connected t...
By plasfron , 2 hours ago
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Very Much Awake – Renewing the Heating Industry One Step at a Time
Like any industry that touches so many lives, and is so...
By Aadil Qureshi , 3 hours ago
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Ah.... I'd like to make a couple of observations: &nb...
By Transparent , 3 hours ago
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RE: Battery storage to run Heat Pump.
Hats off to the ones that persist, @Transparent ! ...
By Batpred , 3 hours ago
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RE: What is the Heat Geek Guarantee?
@colinc, that’s a very fair and well-balanced comment, ...
By Mars , 15 hours ago
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@toodles Thanks. I will assume they have made som...
By Papahuhu , 16 hours ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
That sounds suspiciously like an argument by an install...
By JamesPa , 16 hours ago
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RE: PV Panels on roof in Conservation Area
@colinc Do your own due diligence re reviews etc but...
By Morgan , 18 hours ago
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RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
So true, possibly with the exception of people you woul...
By JamesPa , 18 hours ago
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RE: Midea ASHP – how to set weather compensation
Some things worth mentioning: (1) the Headroom Heat P...
By cathodeRay , 19 hours ago
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RE: Heating Turned Off but Radiators Still Warm
@9jwr9 I didn't get an answer at the time and there has...
By Pipcart , 19 hours ago
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RE: Renewables & Heat Pumps in the News
You've completely missed the point. Old, unpatched so...
By Majordennisbloodnok , 20 hours ago
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RE: Ecodan Energy Monitoring Pack
@batpred that’s an idea yes. Will look into it
By Carpenterstation , 20 hours ago