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the dark side of cobalt

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NiHaoMike:
If you heat or cool the thermal store ahead of time, the heat pump can run more efficiently reducing the energy needed.

nctnico:

--- Quote from: NiHaoMike on July 15, 2023, 10:05:12 pm ---If you heat or cool the thermal store ahead of time, the heat pump can run more efficiently reducing the energy needed.

--- End quote ---
You are not counting for leakage which you'll also have in storage underground. A much better solution is to add insulation to a home so you need less energy to begin with.

langwadt:

--- Quote from: nctnico on July 15, 2023, 11:14:21 pm ---
--- Quote from: NiHaoMike on July 15, 2023, 10:05:12 pm ---If you heat or cool the thermal store ahead of time, the heat pump can run more efficiently reducing the energy needed.

--- End quote ---
You are not counting for leakage which you'll also have in storage underground. A much better solution is to add insulation to a home so you need less energy to begin with.

--- End quote ---

I think the current building regulations here is close to 300mm rockwool as minimum, not sure much more will help

nctnico:

--- Quote from: langwadt on July 15, 2023, 11:46:49 pm ---
--- Quote from: nctnico on July 15, 2023, 11:14:21 pm ---
--- Quote from: NiHaoMike on July 15, 2023, 10:05:12 pm ---If you heat or cool the thermal store ahead of time, the heat pump can run more efficiently reducing the energy needed.

--- End quote ---
You are not counting for leakage which you'll also have in storage underground. A much better solution is to add insulation to a home so you need less energy to begin with.

--- End quote ---

I think the current building regulations here is close to 300mm rockwool as minimum, not sure much more will help

--- End quote ---
No, but with such thick insulation you don't need much heating to begin with; a heatpump is good enough. At that point what really counts is getting a house ventilated properly. My own home isn't that well insulated compared to modern day standards but the insulation isn't the problem for keeping the heat in. The ventilation system (or lack thereof) is the problem.

NiHaoMike:

--- Quote from: nctnico on July 15, 2023, 11:14:21 pm ---You are not counting for leakage which you'll also have in storage underground. A much better solution is to add insulation to a home so you need less energy to begin with.

--- End quote ---
It's apparently small enough that the accumulation can be seen over a period of a few years.

--- Quote from: nctnico on July 16, 2023, 12:26:40 am ---No, but with such thick insulation you don't need much heating to begin with; a heatpump is good enough. At that point what really counts is getting a house ventilated properly. My own home isn't that well insulated compared to modern day standards but the insulation isn't the problem for keeping the heat in. The ventilation system (or lack thereof) is the problem.

--- End quote ---
A window mounted HRV would be an easy fix, not sure why there aren't any ready made products for just that.

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