Last seen: Sep 10, 2025
If they are this company, then their website says they are MCS accredited (certified), and it also answers @editor's question, they are HIES registere...
We need to look at this more closely, all the more so given your heat pump was installed this April. If it means exactly what it says, it won't be rep...
I take it that is the desired indoor air temperature. If so, it raises a question mark as MCS (the official (though some say clownish) body that overs...
@toodles - my TRVs do the same thing, when fully open and fully screwed into place, they partly close the valve. Shocking design. If I screw the valve...
@econonsense - the heat loss is an essential part of the design process, it is used to determine the size of heat pump. I should mention in passing th...
@econonsense - that doesn't sound right at all. Can you give more details - size and make and model of heat pump, installation details, heat loss calc...
First defrost cycle of the new heating season (LWT drops below RWT): Note also how the 60min trailing COP drops from about four 12 hours earli...
It is not either or, you can use both weather compensation and a timer. In my case, I have a fully open system (all TRVs always fully open, rads bal...
Latest Posts
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RE: Midea ASHP – how to set weather compensation
I think it is a bug in the code, it comes on even when ...
By cathodeRay , 2 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@ashp-bobba wish you lived closer to Wiltshire! My inst...
By pash44pump , 2 hours ago
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RE: COP is not the only measure of efficiency
@jamespetts Interesting post, thanks. Here are my thou...
By GrahamF , 2 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
@editor So… who’s given in and turned the heating on al...
By Lucia , 3 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
By ASHP-BOBBA , 3 hours ago
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RE: Buffers, hot water and cooling
@jamespa Your reasonably close! Especially with warmer ...
By dgclimatecontrol , 5 hours ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 12 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 23 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 23 hours ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 1 day ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 1 day ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 1 day ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
My system installed in July 2024 has produced 6.4mWh in...
By jamespetts , 1 day ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 2 days ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 2 days ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 3 days ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 3 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 3 days ago
