Forums

Forums
Members
HarriUp
Activity
 
Notifications
Clear all
HarriUp
@harriup
Member
Estimable Member
900 kWhs
Joined: Nov 25, 2021
Last seen: Nov 11, 2024
Profile Activity
Topics: 1 / Replies: 88
AllTopicsReplies
Reply
RE: Gas Combi to ASHP - Making sense of survey results and proposal.

The output of radiators running at 35° is around half that at 45° – so your radiators would have to be twice the size! And you can't really drop the f...

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

I posted on another thread which may of some relevance - – I had a similar gas use figure and a similar heat loss figure which with the data from the ...

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

@mattc The heat loss was done for a temperature of -2.5°C and produced a figure of 7.31kWh for heat loss. That would work out at 175kWh for a day a...

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

You would think/hope that energy used in heating a building would be an ideal benchmark to build a system round, but unfortunately it doesn’t seem to ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is not performing as well as I’d hoped: COP just over 2

@hcas - exactly so. I did read one other persons similar experience but the overshoot was lower if I recall correctly. I can only make this comparison...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is not performing as well as I’d hoped: COP just over 2

@toodles All those factors might result in a lot more heat being required, it can still be delivered in a very efficient way. Lack of efficiency seems...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is not performing as well as I’d hoped: COP just over 2

I think @technogeek is looking at a Vaillant which does, I believe, present a figure for the 'free' heat generated by the pump, so the 'paid-for' inpu...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Question about Ecodan's Room Autoadapt mode

If you really were getting a COP of 6 in Feb using WC mode then I'd be wondering if there is any benefit to changing to AA mode if it proves to be les...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

Heat loss surveys are always going to be guesswork – even more so when you don't have evaluated materials and construction methods. Heat loss via air ...

9 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.

@sunandair The Ecodans just do not have a meter-grade electricity monitoring capacity. There is an over-estimation of the daily consumption that is...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - optimal external installation?

I think this notion of an 'optimal' install is something of a chimera. Every installation is different, and the majority of forum users have experienc...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why are my estimated delivered energy values so much lower than my consumed? (Mitsubishi Ecodan)

The last picture is the flow meter, the other two are of the tank thermistor in its pocket. The flow and return thermistors should be on the main pipe...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Page 2 / 8
Share:

Join Us!

Latest Posts

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →