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JohnR
@johnr
Member
Estimable Member
736 kWhs
Joined: Nov 25, 2024
Last seen: Mar 10, 2025
Profile Activity
Topics: 0 / Replies: 97
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RE: Large ASHP recommendations for listed house

You could see ifare interested. They installed my system (albeit only a 4 bedroom house) and did a good job compared to many installations I read abou...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Expanding the system

There should be no significant change in the load on the heat pump unless you keep the bathroom hotter and thus increase the losses through walls and ...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is there a problem with SolarEdge monitoring?

My SolarEdge monitoring is fine, both on phone and on computer.

1 month ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Not a good January? My heat pump used 840 KWh of electricity

1970's 4 bed detached house with loft and cavity insulation in central southern England heated by a 7kW Vaillant Arotherm+. 508kWh used in January acc...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Looking for some advice – no viable installer/system – I'm stuck

This situation provides a good example of the challenges of retro-fitting heat pumps to existing housing. Is there a technical reason for not fitting ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

Would bigger emitters compensate for the lower water temperature in the cooler rooms? Something extra in the living room might be sufficient as some h...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan flow rate tweak

1. Are all your radiator valves (both any thermostatic valves and the lockshield valves) fully open? 2. What diameter is your pipework to the radiat...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Insulating brass fittings in Loft

Here's a couple of thermal images of my cylinder and pipework which have turned what was the coldest room in the house (NE corner) into the warmest de...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump starting current

I caught my Arotherm+ heat pump at the end of a defrost cycle this morning when the OAT was about 0C. I then checked the data provided by the Vaillant...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What's Your Heating Identity? From Eco-Tech Savvy to No Choicer

I probably fit into the Eco-tech savvy group with the heat pump investment helped by the current government support. However, as a retired engineer, I...

1 month ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

It seems to be normal practice to put the filter on the return pipe to the heat pump so it catches any debris from the main heating system before it g...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

I've just been and checked: My 28mm pipework includes a 22mm mag filter (with isolator valves) and works fine. Think of it as a short section of singl...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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