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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: 4403
AllTopicsReplies
Reply
RE: ASHP sizing - value of Heat Transfer Coefficient

@jamesw It is very unlikely, if not almost impossible, to achieve an accurate heat loss calculation, because some of the factors upon which the calc...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Jokes and fun posts about heat pumps and renewables

@editor To help with your study of Entropy, you may find this video of use.

2 years ago
Forum
Well & Truly Off The Grid
Reply
RE: Incorrect Billing of Customers with a Smart Meter

@transparent The simplest solution would be for each consumer to be informed of the details of the randomised offset on their particular electricity...

2 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Incorrect Billing of Customers with a Smart Meter

@transparent If my understanding is correct, the randomised offset is designed to try to prevent large surges in demand from too many consumers all ...

2 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Incorrect Billing of Customers with a Smart Meter

@transparent So to minimise the possibility of being overcharged when supplying an EV or battery storage system, the switch on of such devices shoul...

2 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Heat Pump Truth or Myth#2 - Cycling uses a lot of power and ruins your COP

I cannot state that I have noticed that our A2A heat pump can modulate to a lower output, but it can certainly respond much faster than an A2W heat pu...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observations on my Ecodan's estimates of energy consumed and delivered

Without delving into the delights of phase angle, true power and imaginary power, in its most basic form power is volts x amps. The specification for...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: No-code, plug-and-play monitoring for your heat pump

No. Surely you just select the type of weather that you desire!!! 😋

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observations on my Ecodan's estimates of energy consumed and delivered

On page B-89 of the document Ecodan_ATW_Databook_R32_Vol5.8_.pdf you will find the following Service > Energy monitor settings >Water pump input...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observations on my Ecodan's estimates of energy consumed and delivered

@sunandair Did you check the actual values that have been set within the FTC for the various pumps and heaters? According to the manual there is a d...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on potential HW Cylinder size

I know that claims are made about heating DHW from cold is more efficient and there may be some truth to that statement, but it needs to be considered...

2 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Advice on potential HW Cylinder size

As Toodles stated, MCS state a minimum capacity of DHW cylinder, so this would be the minimum size that you could have installed. As far as heat los...

2 years ago
Forum
Domestic Hot Water & Cylinders
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