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Last seen: Aug 25, 2026
I don’t know about the immersion settings to be honest as I’ve never used them. Regarding the limits I thought that this unit could go up to 60 LWT ...
Ah ok. There's obviously different schools of thought with respect to the benefits of disinfect cycles but guess you have probably done your own resea...
@painter26 welcome to the forum. However, I don't really get what you are trying to do with your DHW- why are you trying to heat the cylinder so high?...
There is a workaround for this that another forum member signposted me to recently- put heating zone in UFH mode.
@tasos the graph above from around 2100hrs shows the longest space heating run I'm going to have a plot for, without a DHW reheat. This is when LWT se...
@odd_lion the minimum MCS requirement is 2.8. I don't think installers are going to challenge homely on it. Why would they? Your differential betw...
@tasos as above the pump is always running... Thanks for the suggestion regarding the workaround to lower the set outlet flow temps below 35°C by ch...
Same experience with our midea and homely. Homely would overestimate COP by a fair bit compared with the wired controller readings. The very controlle...
I have found the setting which changes from rads to UFH so that looks like a good workaround if I need it. That said, coasting nicely at 35°C LWT pres...
@tasos interesting. I might look into that. My other option is just to use our indoor temp sensor to turn the ashp off when it gets milder and when a ...
@cathoderay I'm not quite sure I can do that with my setup in terms of looking at the address registers? The svenar device will just provide me all of...
I just realised that there is another setting I need to change but this is not one I can change via modbus- temperature lower limit of T1S heating zon...
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Latest Posts
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RE: Cooling with air to water heat pumps
A quick update. I finally found a 'solar' roller bli...
By springswood , 2 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
85kWh of gas usage, divided by 24 gives 3.54kW and adju...
By Old_Scientist , 3 hours ago
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New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
I am feeling baffled and worried:We are having a an Aro...
By GutoFfowc , 13 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 16 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 16 hours ago
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RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 17 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 1 day ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago



