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Judith

@judith

Member

Prominent Member

2853 kWhs

Joined: Nov 28, 2023
Last seen: Apr 8, 2025

Topics: 2 / Replies: 325

AllTopicsReplies

RE: What happens when the outside temperature exceeds the upper WC point?

@jamespa not found the hysteresis to be a problem yet. The house warms up a lot in the sunshine so it’s only back to our desired temperature by later ...

5 days ago

Forum

Air Source Heat Pumps (ASHPs)

RE: How many compressor starts per year

Ours is 1000 starts in 3200 hours running time over 6months. So twice the rate of James, but again nothing I will worry over. Nice discussion from M...

5 days ago

Forum

Air Source Heat Pumps (ASHPs)

RE: What happens when the outside temperature exceeds the upper WC point?

@jamespa use expanded mode! It’s ideal for that, and I’ve just moved back to it.

6 days ago

Forum

Air Source Heat Pumps (ASHPs)

RE: A question about battery life

@gary thanks for that link. A very useful analysis and I’m pleased to read the author’s view corresponds to my quick glance on it being some batches. ...

6 days ago

Forum

Energy Storage

RE: Anyone able to provide some feedback before I make my finale decision? Samsung vs Baxi vs Vaillant

@eliuccio there are some very high level arguments in this thread which will be challenging at first read. Since you want to make a decision perhaps t...

7 days ago

Forum

Air Source Heat Pumps (ASHPs)

RE: A question about battery life

Nice data set Gary. Tesla clearly had a quality issue with the PW in 2019-20, in that many are showing much reduced capacity even with few cycles. We...

7 days ago

Forum

Energy Storage

RE: What happens when the outside temperature exceeds the upper WC point?

Our Vaillant at present (outside temp 18C and the heat pump is off since internal temperature is above the set point) has a target temperature for wat...

7 days ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

they do allow a volumiser to be used, so the obvious question is could a 4 port buffer be configured as a volumiser and stay in warranty?

1 week ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is my Samsung heat pump working too well?

@pooneil Hi and welcome. I have to say you are thinking like a gas boiler and heat pumps don’t work well being treated that way. It’s best that you ...

1 week ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Jokes and fun posts about heat pumps and renewables

Our solar hot water is now 2C above the set temperature the pump got it to at 1pm. Thats the upside. But solar PV, nominal 6kW was generating 5.6 at n...

2 weeks ago

Forum

Well & Truly Off The Grid

RE: Help optimising my system!

Great progress so far, keep going you’ll get there! Your Welsh cottage part will have a very long thermal time constant, as you probably already reali...

2 weeks ago

Forum

Air Source Heat Pumps (ASHPs)

RE: New Heat Pump - mixer shower pressure

Mixer showers need virtually identical hot and cold pressures (or at least our new one did) or you need a high flow to mix properly. Our mains varies ...

2 weeks ago

Forum

Air Source Heat Pumps (ASHPs)