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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 22, 2025
Profile Activity
Topics: 17 / Replies: 2698
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Not particularly. Middle of day gives best efficiency, middle of night less efficient but a time when you are happy to have the house cool a bit. If...

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

Somehow that feels like the basis of a motto/strapline. Without a doubt the combination of the nonlinear response to the main variables, the inhere...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New to world of ASHPs: Ideal Logic Air Monobloc heat pump 8kW questions

@tinkestral-6 OK lets get back to doing some basic optimisation on your system. The good news is that you dont have a buffer or (so far as can be t...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Mostly (but not completely) I agree with @uk_pete_2000 I would say I would go with your gut and have two slots to heat DHW and go from there...

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

@alfapat OK, thats very helpfu. If you just record your values for the FSVs in the first picture that should be fine. Most will probably be as per...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: New to world of ASHPs: Ideal Logic Air Monobloc heat pump 8kW questions

er no picture, please post picture of tank and halo. When you turned up the WC from 0.8 to 1 did it change the temperature of the house?

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New to world of ASHPs: Ideal Logic Air Monobloc heat pump 8kW questions

Can I ask what triggered you to do this. Did it change the house temperature? (No implied criticism, just trying to find out a bit of the background...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Not much to discuss based on that, the experiment seems to match what one would expect from a bit of logic (Yay!)

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

My strong gut feel is that, if you bypass the pump in the secondary, turn the thermostat up to full, bypass the buffer, it will work. Basically the h...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Water tank location – where can I put it?

Thats not directly relevant because you are comparing real time heating with stored hot water. Real time heating is dominated by the raw power you ca...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow rate vs emitter 'openness', and CoP?

I guess that depends on where you measure it. If measured at the heat pump then the flow rate for any given heat transfer at any given deltaT (across...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Water tank location – where can I put it?

Typically DHW tanks are cylindrical and ~1.4m high (or more) Is the loft a possibility? If not then with the relatively small space available you ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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