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Judith
@judith
Member
Prominent Member
Joined: Nov 28, 2023
Last seen: Sep 10, 2025
Profile Activity
Topics: 3 / Replies: 386
AllTopicsReplies
Reply
RE: Has anyone replaced an old ASHP with a new one?

I’m not surprised an installer suggested replacing everything since he gets more work! Your system is 16 years old so what else might need changing?...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Adding underfloor heating to existing HP system

We have ufh in a small downstairs extension and it is far superior to the radiators elsewhere. It’s a small area so a simple thermostat mixer dropped ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

@iantelescope Heat-punk is good for seeing the effect of radiator size, flow temperature and general house heat loss. You put in all house dimensions ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

I look forward to seeing the results of your script. I fiddle with our WC curve increasing/decreasing between 0.55 and 0.75 according to the extent ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Share Your Experiences with Heat Pump Manufacturer Support

Vaillant were very willing but the guy who came said he didn’t know much about software. So multiple re-installs switch on and offs later everything t...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Moving to single zone

I’m sure I’ve read somewhere that Samsung pumps don’t like going down to temperatures in the 20s so the 32C at the upper outside temperature end might...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Moving to single zone

To make your system more efficient you need to increase both your zones’ thermostats to above the temperature you want them at (see Heatgeek for more ...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Fitting HP pipes in advance?

In my personal experience of all things engineering no matter how carefully you try to think of everything that the future installation might need you...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant ASHP Weather Compensation with Octopus Cosy

Your Sensocomfort is the thermostat and it does work as one in partnership with the WC curve. In expanded mode it switches off once the room is above ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

Can you manually and temporarily raise the slope and or offset of your WC curve? On the Vaillant it would be by increasing the WC parameter but on the...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Power cuts, batteries and heat pumps

We’ve got a single 9.5kWh GivEnergy battery and it has been OK software-wise. Others have had real problems with the control side, in particular when ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter...

We only hit -3C and 65kWh electricity in 24hrs, a couple of days ago. We were using the wood burner too since we’ve got loads of scrap wood to burn,...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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