Last seen: Jan 26, 2023
I opened the valves on the actuators (white valves in the picture). This was to have an open system for the pump to heat the whole house at once. Orig...
Is there any reason to believe changing the delta T to 3 when it's milder outside is detrimental? I guess the trade off is possibly a circulation pump...
Yes it might be this asas I have never seen the pump go below 10l/min, which for a delta T of 5 that means 3.5kW. But then I do not understand why I c...
Does this mean that a smaller, 9kW heat pump can avoid cycling simply because it is "allowed" to have lower flow rates? If mine cannot go, say, below ...
Thank you for your explanation, I will need to think about this. Because I am still struggling to understand this point. Why would an oversized heat p...
Ah, that's what I feared. Why did they have a clearly oversized heat pump installed? That sounds counterintuitive as more costly to run. But wha...
@derek-m 3-bed semi detached, about 100 square metres. The MCS document says something like "Room specific heat loss 40-60W/m2" which I have no idea w...
Latest Posts
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
There is a Facebook group in which the lead engineer pa...
By AndrewJ , 1 minute ago
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RE: Electricity price predictions
@transparent This will be interesting. I would have...
By TechnoGeek , 2 minutes ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?
@jamespa Yes, the OAT sensor is situated on the back pa...
By Toodles , 56 minutes ago
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RE: DHW heat loss through pumps.
Ah, you have a water circulation loop, (like in hotels)...
By JamesPa , 1 hour ago
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RE: Ecodan ASHP Low COP and Unstable Compressor Frequency
Just to clarify, returning water from UFH is colder tha...
By lukewarmbath , 1 hour ago
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RE: 10kw heat pump run in 24*7 data?
A different heat pump (Midea 14kW) but a stark reminder...
By cathodeRay , 1 hour ago
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From what I see, the work to upgrade the cable, etc all...
By Batpred , 2 hours ago
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RE: Confusion over Octopus Tariffs
That's sounds great. I have no ASHP, but 15kwh storage....
By Batpred , 2 hours ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
Locked environments are difficult to manage, it also me...
By Batpred , 3 hours ago
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RE: Do Heat Pumps need to start up at Full Power?
@steelbadger Attached is the plot for various parameter...
By Toodles , 6 hours ago
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RE: Has anyone seen this problem before? Huge anticycling times
Hi all, I had a 15kw installed 3 weeks ago. The past we...
By jamesh , 7 hours ago
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Adia Therma - 'autopilot for heat pumps'
Thought I'd pop this one in here as the Adia proposal a...
By seatonian , 21 hours ago
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RE: Mitsubishi Ecodan R290 10kW performance
Don't know answer to final question. Your contract p...
By JamesPa , 22 hours ago
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RE: New Fogstar 15.5kWh upright solution
Ah, it seems PACE BMS are easy to source on AliExpress,...
By Batpred , 22 hours ago
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RE: Vaillant water pressure gauge vs Analogue gauge
@jamespa Agreed I don't feel concerned about this, espe...
By jeegnesh , 24 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@toodles Yep, and it is not even a sticking plaster ...
By Jeff , 1 day ago
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RE: Renewables & Heat Pumps in the News
I agree, imperfect systems like voting for politicians ...
By Batpred , 1 day ago
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RE: Gov wants to alter our FIT contracts from rpi to cpi
The consultation is just part of the normal process for...
By Jeff , 1 day ago
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@transparent @old_scientist Quick update, I submitted...
By Batpred , 2 days ago
