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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Nov 10, 2025
Profile Activity
Topics: 18 / Replies: 3327
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RE: Three pipe buffer

@jancold thanks for the update! Fully understood. Since I'm just some bod on the internet in no way connected to the project Im not bound by the...

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

er no need to apologise, you aren't obliged to answer quickly or indeed at all!

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

For the avoidance of doubt I still don't get the first part of this as explained above, and would appreciate clarification if you have the time and in...

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

If they were heated up only at night on a very cheap night-time tarrif, they could possibly work out cheaper than ASHP unless you get the right tarrif...

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

This is an interesting one and shows the challenge of mixing radiators and UFH IMHO. I suspect that, in at least some houses, it 'resolves itself' b...

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

Ultimately demand is defined by the house because ultimately the heat pump (plus any sundry sources of heating) must supply exactly the amount of ener...

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

Its easy to get mixed up! So now leave 2022 where it is and gradually adjust 2021 until the house is at the right temperature. Allow a week, change...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

Absolutely. 37@15 makes no sense whatever. The whole point of WC is to adjust the flow temperature so that the output of the radiators (which depend...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

@alfapat 2021-2022 make no sense, the difference is so small that its barely bothering with weather compensation at all. I would set 2022 to 30 ...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Apologies but I don't understand this. The demand is determined by the house which in turn determines the radiator sizing. You can't prevent cycling...

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

That is the one to be bypassed in the first instance. You may also be able to remove the pump on flow or return, but I strongly suggest to proceed on...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Mitsubishi ASHP - Circulating pump noise?

[/quote] Sorry to hear about what are almost certainly teething troubles, the Mitsubishi is well renowned so its unlikely that there is anything maj...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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