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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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Reply
RE: ASHP options for my mum living in Cambridgeshire

It would appear to actually be a controller, since it is modulating the water flow to regulate the room temperature. I realise that it is a pay on wor...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

I assume that what you mention is actually a temperature sensor and transmitter combination rather than a thermostat, since Pulse Width Modulation is ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Decisions to make on 12000 kWh per year for heating and DHW

Hi Chris, welcome to the forum. It is not quite as you state. If, as you have said, you require 12000kWh of energy for heating and DHW, what you are ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

@mjr I am not certain how knowledgeable your are concerning PID Controllers, so please forgive me if I am 'teaching my Granny to suck eggs'. To be...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat storage batteries

@squeakysim I try to be objective, when I look at any new idea. If the Warmstone unit was more competitively priced then I may have been more favour...

3 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
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RE: ASHP options for my mum living in Cambridgeshire

@kev-m Hi Kev, Thanks for the useful information, which only goes to prove that theory doesn't always work in practice.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

@mjr I cannot state for definite, but as a Control Systems Engineer I would expect both the LWT and the RWT will be used in the control of the speed...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat storage batteries

@squeakysim I don't wish to burst your bubble, but I looked at the Warnstone units some time ago and came to the conclusion that they are too expens...

3 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: ASHP options for my mum living in Cambridgeshire

@squeakysim Like a gas boiler, or an oil fired boiler, a heat pump produces heat energy, which in the UK is normally transported to the heat emitter...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

Heating one's home is a balancing act, and it is even more so with an ASHP. Consider the following example. If the heat loss calculation predicts ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

As far as I am aware, the temperatures quoted are the agreed 'standard' for properties in the UK. They are the ones used when carrying out the heat lo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observation about radiators and weather compensation

@cathoderay You are probably correct about running the water pump in PP AA mode, though it depends on how the pump actually performs. A little inf...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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