ᐅ Comparison of Geothermal Heat Pump and Air-to-Water Heat Pump
Created on: 8 Aug 2020 22:33
M
mjammjammjam
Starting point: In the builder’s cost estimate, an air-to-water heat pump Nibe F2040 with a 180-liter (48-gallon) hot water tank is listed. Additionally, there are electric towel radiators and appropriate insulation to meet KfW-40 house standards. This package is supposed to cost us €13,900.
After some research, I found out that ground source heat pumps have a higher annual performance factor. According to the builder’s catalog, the air-to-water heat pump has a COP of 3.6, while the ground source heat pump has at least 4.5. In this case, it is a Nibe 1255.
Even though I don’t yet know the potential price for the 1255 from the builder, I would like to ask,
I look forward to your answers, as a non-expert I feel a bit lost here (at least I do right now)...
After some research, I found out that ground source heat pumps have a higher annual performance factor. According to the builder’s catalog, the air-to-water heat pump has a COP of 3.6, while the ground source heat pump has at least 4.5. In this case, it is a Nibe 1255.
Even though I don’t yet know the potential price for the 1255 from the builder, I would like to ask,
- what you paid for any borehole drilling for the ground loops?
- how the running costs compare between air-to-water and ground source heat pumps
- what you had to pay for your eligible Nibe units
I look forward to your answers, as a non-expert I feel a bit lost here (at least I do right now)...
Depending on where you live, reaching 4.5 is almost never achieved. Bavaria will be difficult to impossible, except for self-build projects.
Ground source heat pumps are efficient, but the most uneconomical option after controlled mechanical ventilation. They require about 100 years to pay off, so practically never.
I always say, if you have gas available, then no heat pump...
Ground source heat pumps are efficient, but the most uneconomical option after controlled mechanical ventilation. They require about 100 years to pay off, so practically never.
I always say, if you have gas available, then no heat pump...
Ötzi Ötztaler9 Aug 2020 13:54
Bookstar schrieb:
Depending on where you live, achieving 4.5 is almost never possible. Bavaria will be difficult to impossible. Unless you self-build.That is incorrect. Nowadays, almost every manufacturer offers an air-to-water heat pump with an annual performance factor (seasonal COP) of 4.5 or higher in most climatic conditions. Examples include Nibe, Wolf, Viessmann, Alpha Innotec/Novelan, and many others.Ötzi Ötztaler9 Aug 2020 13:55
Bookstar schrieb:
I always say if you have gas, then no heat pump... I agree, except if you qualify for the BAFA subsidy with an affordable air-to-water heat pump – in that case, you need to compare offers carefully. Especially since BAFA can also provide funding for controlled residential ventilation systems.
M
mjammjammjam9 Aug 2020 14:11Bookstar schrieb:
I always say if you have gas, then no heat pump...Why?
Ötzi Ötztaler9 Aug 2020 14:16
mjammjammjam schrieb:
Why?It provides heat, is inexpensive, lasts a long time, and causes no trouble. The only hassle is the pointless mandatory solar panels combined with gas.mjammjammjam schrieb:
Why?Because he had bad experiences.A brine-to-water heat pump can be cost-effective if you source the ground yourself using a slinky collector.
Similar topics