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Judith
@judith
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Prominent Member
Joined: Nov 28, 2023
Last seen: Aug 2, 2025
Profile Activity
Topics: 2 / Replies: 369
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Reply
RE: What is the best approach for primaries in heat pump installations?

Don't forget there is no such thing as zero loss insulation and trunking! So inside the envelope is best everything else looses some heat to the exter...

5 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Seewet manhole cover within r290 exclusion zone

Please provide photos or model if you can find it in a builders merchants. Even if yours isn’t airtight it might be an easy change. Someone might re...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New kitchen with no walls – will fan coil units work?

@adamk we only switch ours on when the temp gets down to about 2C and it has 2 fan speed settings, purely manual obviously. Our house has doors on eve...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: solar gain in south rooms best approach?

We have outside canopies which we roll down to reduce the (extreme) heating effect of large south facing windows and patio doors. In the kitchen this ...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New kitchen with no walls – will fan coil units work?

@majordennisbloodnok we have an under plinth heater (a Myson) and it was set up for occasional heating with the gas boiler. The only change for use on...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: DHW Efficiency

Our DHW this year (Jan & Feb) has given a COP of 3.6. That is 5 days a week heating to 48C once a day at 1pm and once a week to 69C for a legionn...

5 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Pipes and cables exposed on roof

@michellec I suspect @transparent means neat and tidy work, which you have reasonably expected. Plus with the detailed implementation to keep water ou...

5 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Oversized Ecodan

@benseb that sounds a good point from which to start. Since our battery is just a third of your size I would be heating in just the low cosy period an...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What is the maximum output of the Vaillant 7kW Arotherm Plus

On the Vaillant app our 7kW showed9.1kW at ~+2C. I suspect that is a bit on the high side of the measurement accuracy though. @adamk your surveyor m...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: buffer/volumizer cupboard space eater, do i need one?

Ours is on the flow side at your position C after the DHW-CH change-over valve. It is plumbed in series.

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Solar Performance

Our 6kW system has generated just over 400kWh since 1st October. We are south facing but our neighbours all have tall trees. Spring isn’t too bad sinc...

5 months ago
Forum
Solar Photovoltaic (PV)
Reply
RE: ASHP and heating issues in new build house

@dreg1 I am a cynic and believe that only the actual house which is tested will pass the building regs. The other will have considerably less care tak...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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