ᐅ Would you choose an air source heat pump again? I am looking for alternatives to air source heat pumps.

Created on: 9 Apr 2015 19:45
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xycrazy
Hi everyone,

we are facing a decision regarding the heating system for our new build! The house has 160m² (1,722 sq ft) of living space plus a basement apartment with about 80m² (861 sq ft).

I have to admit, it’s not easy. Initially, I was leaning towards an air-to-water heat pump, then we considered pellets for a while, and now we are back to the air-to-water heat pump. Meanwhile, I’ve also read about trench collectors, which, if installed by yourself, can save the high investment costs of geothermal systems and make them similarly priced to air-to-water heat pumps.

You often read that air-to-water heat pumps only work well if everything is properly sized and the winter is relatively mild. I would be interested in hearing generally if you would choose an air-to-water heat pump again and what your monthly electricity consumption is. I’m concerned about heating with electricity. In the past, night storage heaters were criticized, and now we are supposed to heat with electricity again? Even though the air-to-water heat pump is much more efficient, I still feel uneasy because of the dependency on electricity prices and all the horror stories about very high energy bills.

By the way, we were recommended the Wolf BWL-1-A (outdoor installation). It is supposed to be very, very quiet but not exactly small. Does anyone have experience with it?

What would you choose as an alternative to the air-to-water heat pump? Gas? That’s basically not an option for me. I’m not comfortable having a gas line in the house, unless you have good arguments for it.

Other alternatives? Fireplace with buffer tank? Pellets?

Looking forward to your answers.
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Wastl
10 Apr 2015 10:57
Ice storage combined with solar thermal systems and a large buffer tank
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xycrazy
10 Apr 2015 15:05
f-pNo, could you tell us the size of your house and which heating system you have installed? May I ask what the total cost of the geothermal system was?

@Wastl: Interesting... I have never heard of this before... but I just read up on it. Unfortunately, there is no price information available anywhere. Did you have it installed, and can you provide any details on cost and performance?
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Legurit
10 Apr 2015 15:50
Relatively expensive. Just search for "heating system comparison" – the first result was an interesting overview. However, some of the initial investment costs there seem a bit overestimated (at least based on the first quotes we received).
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xycrazy
10 Apr 2015 16:04
Hmm... a trench collector really seems to be the best solution! I think I will take a closer look at it.
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Wastl
10 Apr 2015 16:30
xycrazy schrieb:
f-pNo, can you tell us how large your house is and what kind of heating system you installed? May I ask what the total cost of the geothermal system was?
@Wastl: interesting... I had never heard of this until now... but I just read through some information. Unfortunately, I couldn’t find any prices anywhere. Have you installed one and can you share your experience regarding cost and performance?

-> A friend of mine had one installed. I’ll ask him about the price and how it performed during the first winter.
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Saruss
10 Apr 2015 17:13
Size would be interesting, but it also depends on the insulation. On cold winter days, we used at most 15 kWh, usually around 10 kWh, for hot water and heating. However, we also have a deeper borehole and relatively high brine values.