
Last seen: Jun 17, 2025
The colder it gets the More energy is saved! We have at last managed to trial a 24 hour continuous operation of our heat pump at sub3degC. This means ...
Is it because most new owners never feel in control of their state of the art heating system? Is it because the latest smart thermostat just becomes a...
Hi @glpinxit your reply to @skd is very enlightening. Am I right in interpreting your numbers in brackets? For example “Nov 399 KWh (442)” Is th...
To help qualify our OKish performance... There have been improvements we have done in an attempt to help maximise our efficiency. These include: W...
I might almost have just copied @gary s figures with some small differences. Ours is a 4 bed old house,180sq mtrs, no u/f heating just 16 radiators...
The results of our trials: There were 4 continuous 24 hour trials which coincided with 4 different outside ambient temperatures. These temperatures w...
In summary the purpose of these trials have been to see if there are any energy savings in having an automated setback over a 7 hour period of night t...
Where is your circulator pump located in the circuit? Is it positioned on the Primary Flow or the Primary Return? Do you have a Mitsubishi pre plumbed...
hi SKD, What model are you referring to please? The R32 only refers to the refrigerant. I’ve posted here the data sheet for the current r32 models a...
Definition of setback. we have tried different set back temperatures to see what fits our Low mass building. In other words our house warms up quick...
Hi Ray Looking at your chart you seem to have a stark increase in energy use for only a small drop in outside ambient. IE dropping from 10c to 8c ap...
@cathoderay Thanks for your observations. I need to correct a chart comment I made on my last post. The pink coloured crosses are December data not Ja...
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RE: Who's your electricity provider and what's your tariff?
@old_scientist I found the switching between tariff jus...
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RE: Plug and play solar. Thoughts?
Have a read of my previous posts on so-called Balcony S...
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@editor @bart Hi, I can see a few problems with your in...
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RE: Ecodan consuming 100kwh per day in new build!!!
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
"To tell you the truth, I don't know if HAL is homicida...
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RE: Location of hot water isolation valve on cylinder
@rossowheels if you isolate the water supply in it will...
By ASHP-BOBBA , 1 day ago
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The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve
It’s fascinating to watch how low-temperature heating i...
By Mars , 1 day ago
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RE: Servicing Hitachi HP in rural Somerset
I'd give GreenGenUK a call or email them: sales@greenge...
By Mars , 2 days ago
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RE: Heating coming on when not required
I played with a max heating temp but there is a world o...
By JamesPa , 2 days ago
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RE: Pressure drop Primary circuit
I've always regarded topping up heating systems as my j...
By JamesPa , 2 days ago
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RE: Heat pump solutions and/or installer recommendations for France
I’d travel to France for work if you were struggling wi...
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RE: 5 Star Service from Havenwise
That's always a danger with any new good idea, @morgan....
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Have your say in the Renewable Heating Hub Awards
It’s time to celebrate the best (and call out the worst...
By Mars , 3 days ago
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RE: Mitsubishi cycling while on chilled water output
@iaack yes there's no denying that cold air sinks! I s...
By downfield , 3 days ago
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RE: Weather compensated secondary circuits with Biomass
@andycoo that flooring sounds ideal. Extra volume is ...
By Sune , 4 days ago