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robl
@robl
Member
Honorable Member
2570 kWhs
Joined: Mar 23, 2022
Last seen: Mar 4, 2025
Profile Activity
Topics: 1 / Replies: 198
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Reply
RE: Does your heat pump calculate and provide you with a COP figure?

We have had one radiator plumbed in an odd way in parallel to the heatsource, some 10 years ago. We had a "regular" boiler at the time, with a pump f...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Does your heat pump calculate and provide you with a COP figure?

Totally agree, COP should be the headline information when looking at how the heatpump is performing. It is hard to measure accurately though - for h...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Indra V2H Trial

We did get on the V2H ‘trial’. I use quotes, as I think the trial was for new entrants; we had the indra box already. The process was: Change prov...

2 years ago
Forum
Energy Storage
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RE: Heat storage batteries

A 2000 litre thermal store would cost around £2k, and store a similar amount of heat - you’d get 100kWh from 90C down to 40C. The warmstone operates a...

2 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
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RE: Anyone want to share costs on batteries?

I noticed the guy from off-grid garage liked this balancer + disconnector = BMS. That is, in addition to active balancing, it detects over or under v...

2 years ago
Forum
Energy Storage
Reply
RE: Heat pumps & dry air leading to sinus problems and headaches?

@gurugurugravity Unless you have an extremely unusual reason for a damp house, a dehumifier may be an issue. Unusual reasons include a new house d...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

@Oswiu I think that assuming your internal temperature is 22C (you said it was hot) then I think the radiators couple as: (Temp_flow - Temp_air) /...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

@Oswiu I assume your boiler is smarter than our old one, and has a display! I’d encourage you to check it somehow versus the calibrated payment gas...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

If you have a smart meter, you can get the information you need from it. Look back over the last year for the greatest daily gas used in kWh. Divide...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Looking for a GSHP installer

@heacol I believe that Kensa offer cooling, as an add on option. The Vaillant Geotherm mini (2.5kW heat) has it in by default I believe, so "just"...

2 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Samsung Launches the EHS Mono HT Quiet – A High Temperature, Low Noise Heat Pump Ideal for Home and Building Renovations

@iancalderbank I think I read off the COP numbers wrongly from the graph in my last post- trying a bit harder, it's COP=4.2 down to 3.5 from a 5C D...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung Launches the EHS Mono HT Quiet – A High Temperature, Low Noise Heat Pump Ideal for Home and Building Renovations

@iancalderbank @Jeff DT is just the temperature of flow-return, and Heatpumps only care about the flow temperature - if you would like a DT of 20C, ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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