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HarriUp
@harriup
Member
Estimable Member
900 kWhs
Joined: Nov 25, 2021
Last seen: Nov 11, 2024
Profile Activity
Topics: 1 / Replies: 88
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Reply
RE: Hot water temperatures

The hot water is taken from the top of the tank, to be replaced by cold water at the bottom of the tank with a minimising of disturbance. (I am presum...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan ASHP general set-up and efficiency

I wouldn't place efficiency at the top of the list – you have to get to an understanding of how your house works themally and how the heating system w...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ECODAN ASHP General Set-up and efficiency.

Using Auto Adapt/Room Temperature mode, where the FTC decides on operational temperatures and running periods, requires an internal temperature measur...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP - How to optimise my set up?

It will affect system performance as those are the main temperatures the controller will use to switch the outside unit on and off – definitely a case...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ECODAN ASHP General Set-up and efficiency.

Going back to your -39 issue, this a glitch in the software running on the FTC, which is slightly surprising given that yours is a new installation, b...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan - flow rates, sensors, settings

The manual is quite explicit that it is set for the flow meter supplied ... and the Sika sensor says it only measures up to 80l/min - but if you look ...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

I have a meter on the dedicated HP circuit, so I know exactly what the HP is consuming. It is that that enables me to make the comparison with values ...

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

As it is possible for the FTC to be powered from a separate circuit, should this be the case none of its power draw, including the pumps, will be meas...

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

I think Occam should get his razor out on this one. The simplest explanation is that the Mitsubishi is not capable of accurately measuring the electri...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Gas Combi to ASHP - Making sense of survey results and proposal.

@jeh in relation to your house I can see why you suggest 13000kWh is a lot, but it is around the average heat requirement for the UK, and the avera...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Gas Combi to ASHP - Making sense of survey results and proposal.

An annual gas use figure of 13000kWh, as long as you are close to keeping the entire property at 20° for most of the time, would suggest a 5kW ASHP wo...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New ASHP system - choices

All heat pumps will hit the point where their minimum output exceeds the heat being taken out by the heating circuit, not oversizing too much means th...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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