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JohnR
@johnr
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Estimable Member
Joined: Nov 25, 2024
Last seen: Apr 8, 2025
Profile Activity
Topics: 0 / Replies: 106
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RE: Heat Pump starting current

Vaillant's comment about de-icing is: It is hard to say how often a de-icing cycle will take place as it depends on several things…• The humidity of...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: hum/whine from Wilo circulation pump

@richard24738 You had commented above that "I have today placed temperature probes on the buffer 4 ports. The top two pipe readings Primary in 40.0c a...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: hum/whine from Wilo circulation pump

I recently bought some of those cheap digital thermometers with probes and have been using them to monitor the flow temperatures for the buffer tank i...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP for small garage and workshop

@transparent I've got some 5 minute data which includes the battery charge level. The increase in charge over the first 5 minutes of charging is about...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP for small garage and workshop

@transparent Further to my comment above, I contacted Tesla who changed the grid code in my Tesla gateway (battery controller) from G99 to G98 and the...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What to Expect During Your First Winter with a Heat Pump

Vaillant have this comment about de-icing "The de-icing cycle will happen more often when the outside air temperature is around 2.5°C but will happen ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP for small garage and workshop

The Vaillant Arotherm Plus specs refer to "Inrush current (with inrush current limiter)" which, I presume, manages this problem but perhaps other manu...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP for small garage and workshop

My 7kW Vaillant Arotherm+ heat pump has a maximum current of 15A according to the label. It should be sufficient for a very large new house that has b...

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

I normally see a steady increase in the sunny day peaks as January progresses. There's a link to my data below but I would note that my winter solar g...

11 months ago
Forum
Solar Photovoltaic (PV)
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RE: R290 install location and future of R32

Propane is denser than airso any leak is likely to spread laterally and not vertically. However, something else to watch out for is any airbricks in...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Can you work an ASHP too hard?

The lower you can get the flow temperature the better. If need be you can upgrade some of the emitters after getting some experience. Could you inst...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Cost to have Gas removed

Octopus charged me nothing to remove my gas meter after my heat pump was installed and the boiler removed. The person who removed the meter said that ...

11 months ago
Forum
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