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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: Cosy Octopus - New ASHP tarrif

Even if Octopus state that Go is designed for EV owners, I think that they may have difficulty excluding none EV owners, since it may be deemed discri...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

I think that you will find that many of the ASHP's actually contain a speed controlled water pump within the unit, which varies the flow rate to contr...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

@sunandair Thanks for posting the video, which confirms much of the advice being provided on RHH.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to ASHP Monitoring

You are correct, one of the first questions is what parameters do I need to measure, but even prior to that you need to decide what it is that you are...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to ASHP Monitoring

Here is a free tip, don't mention COP, just boast about your 29C LWT, then all the envy will be the other way around. 😎 My field of expertise is In...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to ASHP Monitoring

Sounds like you need a Data Acquisition System or even a Supervisory Control And Data Acquisition (SCADA) System. Below is a link to a data acquisiti...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to ASHP Monitoring

From the point of view of optimising your system, accuracy would be nice, but repeatability is more important. Take the LWT measurement for example, i...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

Hi Hugh, I'm not against Homely, but I'm also not a fan of such systems, unless they provide actual benefit to the homeowner. As Heat Geek stated du...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

Even with water pump speed turned down, I suspect that you will continue to lose heat energy from the hot water cylinder until you stop the pump from ...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

@cathoderay If the indoor temp is at the design temp, then the flow temp is right, if it is below design temp, flow temp needs to increase, if it i...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is my Daikin Altherma 11kW heat pump oversized?

Since you don't have any thermostats, have a look at the Daikin manual and see if you can widen the On - Off temperature range of the LWT. If the calc...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our year end review - North East Scotland

It can be an expensive learning curve. 😡 At least you can bask in the warm glow of having an efficient system. 😎

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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