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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 11, 2025
Profile Activity
Topics: 17 / Replies: 2826
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RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

You dont need actually need to have solar panels (photovoltaic) to use this option, you are just using a function of the Samsung (if yours has it) cal...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Ecodan 6kW - is it "cycling", or normal operation?

Yup, or better still turn down the lockshields in the bedrooms so you dont need TRVs there either If you need time-variable temperature in the bedro...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan 6kW - is it "cycling", or normal operation?

I agree with @gary. You need to go back to basics and get it working with weather compensation as the principal/only control and other external con...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

@alfapat I hope you are getting closer to the optimum adjustments. Ive given some thought to how you can operate the optimised system with Cosy. ...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Vaillant - Downstairs radiators not getting warm

DHW flow temp is completely separate to space heating flow temp. The offset is added to the target DHW temp to get the FT for DHW. 15K should be amp...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm ASHP gets noisier when it gets colder outside

Interesting. I must admit Id be very reluctant to get a different model to the one I need because of a known software problem, assuming Vaillant adm...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant - Downstairs radiators not getting warm

OK so downstairs is 'after' upstairs. You may have to throttle down the LSVs upstairs, increase the pump head if thats an option, and open up (if you...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant - Downstairs radiators not getting warm

Something is wrong with the plumbing for sure. Have the downstairs rads been bled? Are they on a separate primary or do they share a primary with th...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan 6kW - is it "cycling", or normal operation?

Im not an Ecodan exert but I would say that the first picture confirms its cycling, roughly every 15 mins If its about 8C outside, which the BBC sug...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan 6kW - is it "cycling", or normal operation?

Can you post some plots so we can have a look please? At present many heat pumps will be defrosting (which can look like cycling) because current te...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Best temperature wave form for best economy and efficiency .

@ivanhoew I must say I echo what @cathoderay is saying here. I hope what Im about to add doesn't offend you (and apologise if it does - its no...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ideal Logic 10kW Heat Pump Pipes Noisy and Very Expensive to Run

Good you are making progress. It sounds like the internal noise problem is fixed, just in case it's relevant it took 4 weeks for all the air to come ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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