Last seen: Sep 14, 2025
Hmm, I need to have a crawl around and check the radiator piping but I think it's all one 22mm backbone with 15mm drops - a couple of drops serve two ...
Some fair points... I've been doing some investigations. The system is balanced, in the sense of delivering heat evenly without cold spots. However ...
Good spot, I'd missed that 'short circuit' path. Here's another go: If no V1/V2/V3 are powered (all NC position) then we're in classic buffer hea...
Agreed, you get loss of optimality - but it continues to work, rather than just breaking. That's what I'm trying to do: design and insulate it ri...
I wondered about that. Wouldn't that potentially cause issues with flow rates? I have no idea what the flow through the radiators is, and I thought th...
I haven't bought the Aerona Smart Controller (£700!) but my guess what they mean with 'retrofit' is basically undoing all the weird external switching...
For the record, Grant supply ethylene glycol for their heat pumps: Grant Inhib03 Heat Pump Fluid (Heat Pump Concentrate) - MSDS: So if it's a Gran...
There shouldn’t be a problem using an inverter rated higher than your panel output. Maybe there will be a small efficiency loss at the low end (grey d...
One thing I fixed was my dozy installer had screwed the copper pipes from the ASHP to the loft joists with regular brass pipe clips. (Flexi tails outs...
@jimbo69 As a follow up to my post above, I solved the other cause of my noise. The installer fitted my system with a Honeywell Lyriq on-off controlle...
It is possible to install a thermistor (10K, beta=3435, 1%) in the DHW cylinder so the tank temperature can be read by the ASHP. However this doesn'...
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RE: Mitsubishi Ecodan F8 error
It’s errormentary, my dear Wattson. Sorry, I’ll get m...
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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...
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RE: Can you recommend a Mitsubishi service engineer in the Rochdale area?
@dgclimatecontrol We'll all need annual servicing. How...
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RE: Renewables & Heat Pumps in the News
@transparent I’ve understood your point now. The point ...
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RE: Octopus tariffs - a quick comparison
Does indeed need checking, @tim441. Neither Homely ...
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RE: How not to install a heat pump
Delighted to hear that the buffer has been replumbed as...
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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 , 8 hours ago
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Actually, there's a rather greater degree of cattle-her...
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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...
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RE: 5 Star Service from Havenwise
I keep getting havenwise ads on my Facebook feed, so cl...
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Automation options to maximuse efficiency & ToU tariffs
I started a conversation with ChatGPT. What automation...
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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....
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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...
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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...
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RE: Bosch CS5800i 5kW - Experience So Far
Yes, over the last few days I've been keeping a very cl...
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Absolutely. I am one of those members and I most certai...
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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...
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