Hey everyone,
We are currently planning our small house and are facing the big question of which type of heating system to choose.
Gas heating + domestic hot water
Heat pump (air-to-water)
Geothermal energy
I have researched the different types extensively. It is also clear that the initial investment costs vary.
Which heating system is the most cost-effective in terms of operating expenses?
Here are a few key details:
KfW-55 standard
About 140m² (1,500 sq ft)
Controlled ventilation system
Underfloor heating on ground floor and upper floor
Thank you very much for your advice
We are currently planning our small house and are facing the big question of which type of heating system to choose.
Gas heating + domestic hot water
Heat pump (air-to-water)
Geothermal energy
I have researched the different types extensively. It is also clear that the initial investment costs vary.
Which heating system is the most cost-effective in terms of operating expenses?
Here are a few key details:
KfW-55 standard
About 140m² (1,500 sq ft)
Controlled ventilation system
Underfloor heating on ground floor and upper floor
Thank you very much for your advice
Now comes the gas fan. The often-criticized chimney sweep visits for exhaust gas measurement once every two years. There is no need for sweeping with a gas condensing boiler. Annual costs are therefore under 40,- gross.
The gas condensing boiler, combined with heating support from solar thermal systems, remains the most affordable heating system today. With proper planning and underfloor heating, it can achieve heating costs of around 600,- per year for an area of approximately 100 sq m (1,076 sq ft). It is durable and low-maintenance. The one-time gas connection fee is about 1,000,-. Depending on the region, this can be halved through welcome offers from the gas supplier, similar to a telecom connection fee, costing 800 without a contract or 400 with one. The space required in the utility room is significantly less than that of heat pumps, as is the electricity consumption. Provided there is an unshaded south-facing roof, up to 65% of hot water can be generated by the solar panels. Economically, gas plus solar is far from being obsolete.
The gas condensing boiler, combined with heating support from solar thermal systems, remains the most affordable heating system today. With proper planning and underfloor heating, it can achieve heating costs of around 600,- per year for an area of approximately 100 sq m (1,076 sq ft). It is durable and low-maintenance. The one-time gas connection fee is about 1,000,-. Depending on the region, this can be halved through welcome offers from the gas supplier, similar to a telecom connection fee, costing 800 without a contract or 400 with one. The space required in the utility room is significantly less than that of heat pumps, as is the electricity consumption. Provided there is an unshaded south-facing roof, up to 65% of hot water can be generated by the solar panels. Economically, gas plus solar is far from being obsolete.
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Peanuts7422 Feb 2017 13:55That’s why I mentioned gas or air-to-water heat pump, depending on some other factors, but not necessarily the energy consumption, which is very good for all heating systems when properly adjusted.
In our case, the gas connection would have cost about 2300 (currency), so we chose the air-to-water heat pump instead.
In our case, the gas connection would have cost about 2300 (currency), so we chose the air-to-water heat pump instead.
As far as I know (although I am not fully informed yet, as we are not that far along), you cannot receive KfW55 funding (or better) with fossil fuels, but only up to a maximum of KfW70. This is something you might want to consider. However, as I said, I am open to being corrected.
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Bieber081522 Feb 2017 16:06With geothermal heating, there is no visible outdoor unit (similar to gas systems). If gas is ultimately cheaper to install than an air-to-water heat pump, I would choose gas.
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