ASHP question

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  • Mstty
    Mstty Posts: 4,209 Forumite
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    Just an update this morning with an overnight low of -5oC at 6am and still -2oC outside.

    Kitchen 16oC, Downstairs hall/Lounge/Snug 18.5oC. Upstairs 19oC

    I think due to the vaulted kitchen space a cooked breakfast is in order to bring her up to temp. Mmmmmmmm

    Changes to be made are four velux blinds for the vaulted kitchen open plan area. Going to get the model number and order those up this week. 

    I really thought I would light a supplementary fire today in the multi fuel burner but it's fine and partly due to the fact the heat comes through the floor and heated feet really does seem to make a difference as to the temperature that is comfortable.

    Also I stepped out with the dog this morning and inside now feels like a very warm place to be.
  • chris_n
    chris_n Posts: 615 Forumite
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    @Mstty ,Would it not be worthwhile to fit a destrat fan to the vaulted area to push the heat back down?
    Living the dream in the Austrian Alps.
  • Mstty
    Mstty Posts: 4,209 Forumite
    First Anniversary First Post Photogenic Name Dropper
    chris_n said:
    @Mstty ,Would it not be worthwhile to fit a destrat fan to the vaulted area to push the heat back down?
    I had not even considered or thought of this. Nice one👍

    Do you have any opinions in this area for a brand of product will have to make a cup of tea and have a research then work out how to sell it to the interior designer other half that I want a fan on the ceiling or wall😂😂
  • chris_n
    chris_n Posts: 615 Forumite
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    Sorry you will have to do your own research, it's a long time since I had anything to do with such things and that was in an industrial environment. It's much simpler and quieter to have a large diameter ceiling mounted one.
    Living the dream in the Austrian Alps.
  • Mstty said:
    How's your daily usage Spoonie turning it off overnight, is there a big spike in the morning.

    Reason I ask as we are experimenting with it on 24/7 
    @Mstty

    Since changing settings to timed, heating consumption has been:
    Oct 99kWh (output 198), daily average 3.19
    Nov 157 (output 623), daily av 5.23
    Dec so far 153 (469), daily av 15.3 [assuming it updates at the end of each day, which would make it 10 days' usage.]

    Thermostat is at 18℃, I can only go by averages without a smart meter (even if I wanted to record actual daily consumption, it's too awkward to keep getting in and out of the cupboard every day).

    In terms of efficiency it seems November's temperatures were ideal, with a CoP of 3.96 for the heating!!  DHW CoP was 3, 45kWh consumed → 135 kWh output.

    Side note: If setback temps were possible I thought realistically we'd likely set it to 15℃, and although I've not been up to check the temp at, say, 4am, the lowest I've seen the thermostat so far at ~3am was 15.5℃ so I don't know that it would make much difference.  We really don't need it working throughout the night to keep it up to 18℃.
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