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Is there a slimline heat pump?
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there are also standalone ashp based hot water tanks - that have moderstely high cop 3fficiencies.
Dimplex claim a cop of over 3 for theirs - but not sure how their speed compares - dimplex say theirs draws 250W - so maybe 750W out vs 3kW conventional immersion - and of course would need air vent( or vents for larger models) drilling
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I had a search and found a comment that the Dimplex combo system operates in either heating or cooling mode, so you can't coll your house and heat your water at the same time.
That does make sense for a single unit, of course.
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I guess the same would have to be true for the central unit - either generating / circulating hot "refrigerent" or "cold".
Maybe another reason they offer the ASHP hw tank systems.
Which I forget to mention above their blurb says have a standby immersion element built in - I guess in case need a fast boost - after using a lot of water - given the relatively low power ASHP heat rate
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Mixergy also do a hot water cylinder with small heat pump integrated into the top:
It's R290 based and they say 3x more efficient (Quoted COP of 3.4), and that it has a boost mode that can provide hot water in under 30mins.
Seems an ideal solution for those going to A2A route for space heating/cooling which I guess may be desirable in the South East where air con is more sought after (we are lucky to see a week of summer here!)
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Before you make a decision, take a look at the new Vaillant Aerotherm Pro models as they have moved the air intake to the side which significantly reduces the space needed behind it…
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Aimed at the developer/new build market but is available via Heat Geek, with a longer warranty than standard.
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Hmmm, they're being a bit coy about the the installation requirements, so the footprint isn't clear.
The issue for me is the front & rear clearance; I want it as flat to the wall as possible (a small space for noise separation).
There was a brief view saying 0.2-1m, so I'll have a check on that.
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I don't know if it is relevant for the reason why the side of the house is the only option, but the other feature of these 'Pro' units is a hugely reduced protective zone, so they can be located in places where previously it wouldn't have been possible due to proximity of windows & doors…
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From their Quick Guide, clearance between the rear of the unit and a wall is 200-250mm and 1m clearance in front.
Any language construct that forces such insanity in this case should be abandoned without regrets. –
Erik Aronesty, 2014
Treasure the moments that you have. Savour them for as long as you can for they will never come back again.0 -
We're talking about the new Pro, not the existing Plus.
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