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Joined: Jan 20, 2022
Last seen: Aug 20, 2025
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Topics: 16 / Replies: 2434
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RE: Baxi Air Source Heat Pump tips and tricks please

It doesn't make sense to me that the immersion heater is controlled by a time clock, separate from the heat pump. Every heat-pump approved for use i...

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

Note for those who wish to follow this discussion but are wary of the maths... There is a BEAMA Guide to underfloor heating which compares the SPF o...

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

Ah... interesting conclusion! I don't think that will work because compressors can't operate at very low speed.They are designed to be used over a r...

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

I think you ought to know that DESNZ is working on an approach to control appliances in the home using remote signalling. At the very least they int...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Baxi Air Source Heat Pump tips and tricks please

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Baxi Air Source Heat Pump tips and tricks please

I suspect that the heat-pump is 'cycling'. Ie it's switching on/off every few minutes in response to temperature sensors. If you have Thermostatic...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Baxi Air Source Heat Pump tips and tricks please

That's interesting @cathyem1 Many installers don't like reconnecting an existing solar-thermal to a newly installed heat-pump system. It can be m...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Solar for heating DHW

I've done a few checks on the Growatt MOD4000-TL XH inverter. It costs around £550 in UK, and is a typical basic 3-phase design with a battery port....

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New Project! ASHP, Solar PV + Battery, MVHR!

Mechanical Ventilation with Heat Recovery (MVHR) needs to be planned/considered at a very early stage. Installing the larger pipes first is the best...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New Project! ASHP, Solar PV + Battery, MVHR!

Using contractors also provides opportunity for them to get things wrong. So it's still important to understand the basics of what you're asking the...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Solar for heating DHW

What's the make/model of that solar inverter @davidalgarve Is the storage battery connected to it directly?or does the battery have its own mains po...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Baxi Air Source Heat Pump tips and tricks please

That's the sort of schedule we'd expect to see for a typical gas boiler installation @cathyem1but it doesn't best reflect how your heat pump should op...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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