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Old 19.04.2023, 00:25
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Replacing oil tank but confused re heat pump options

Can someone help me understand the difference between the following heat pumps?

- Heat pump boiler
- Air-water heat pump (outdoors)
- Air water heat pump (indoors)

And the vast differences in price between options like Oekoboiler (5k) and the premium market (25k)?

If it helps, it would be to replace an oil tank hearing option in a single family house.
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Old 19.04.2023, 09:05
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Re: Replacing oil tank but confused re heat pump options

- a boiler is what the Swiss-Germans call a hot water tank.

- heat pumps get their heat from the air or more efficiently from water, which requires an expensive borehole. Conversions from other heat sources are usually placed outside a building.

- ditto, but if you have the space it can be indoors too - in a cellar.

Please search here for details of heat pump problems in older building in very cold weather...
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Old 19.04.2023, 11:54
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Re: Replacing oil tank but confused re heat pump options

Geothermal heat pumps use water from 100 metres (or so) down as their heat source. The pump itself takes the heat from the source and concentrates it. Think of a reverse refrigerator.

Air heat pumps use outside air as the heat source. They need to work harder when outside temperatures drop.

Water heat pumps use lake water as their source. Requires access to said lake and a long pipe to capture the heat from the lake. Many of the UN properties in Geneva are heated, and cooled, using this technology. Probably not best for a single home.
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