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Last seen: Aug 23, 2026
Another input on correlation of low price with green fuel (or lack of it) is Octopus green days/p> This is a screen capture of the last 50days again...
I too understand reflection factors from a mW communications background and their use is completely inappropriate for water flow along pipes. Keeping ...
This is a more technical description by axleand I’m sure I’ve read a comprehensive description on Linked in without as much gush(easy to have less gus...
Perhaps I’ve missed key points in this discussion but why would the OIT-IAT vary with how hard the pump is working in the general case? I can unders...
I started off thinking of a battery need as to provide all 24hrs of electricity usage. But that not the right approach for us and since the battery al...
We’re on Vaillant’s 0.55 curve which means 42C at -2C and around 30C at an OAT of 15C. The pump cycles about once an hour once it’s warmed up the ho...
This is a better article to understand the carbon cost of steel
Neat analysis! Thanks
Plastic is a wonderful material used in the right products. I believe that I’ve read that plastic buckets have saved countless lives in Africa and oth...
How green is off-peak electricity is a relevant aspect because we can all choose an option which will help the planet even if it can’t be justified on...
The best way to handle multiple thermistors/thermocouples! Thermostats indeed any temperature sensor is to do a “cluster test”. Basically you put them...
@lucia is it possible that your DHW is on for a constant time rather than to reach a set temperature?Otherwise it doesn’t make sense. On set-back as...
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Degrees of Separation
Latest Posts
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RE: How Accurate Is My DIY Heat Loss Calculation?
@editor Thanks Mars, I have been enjoying playing with ...
By kilgorexv , 1 hour 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 , 4 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 , 7 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 7 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 , 7 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 , 2 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 , 2 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 2 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 , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago
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