Hello everyone,
I have made a decision for our new construction project: we will opt for a gas condensing boiler with solar instead of an air-to-water heat pump. The reasons are lower costs, less dependence on a single energy source (electricity), and better efficiency.
Before the “please consider the gas connection and this and that” arguments come up: everything has been considered. The decision is final, and we are comfortable with it.
The only thing we are currently thinking about is using a zeolite gas heating system. I know of two models that are available. The Viessmann Vitosorp 200-F and the Vaillant ZeoTherm. The latter has particularly caught my attention because it combines solar, condensing, and zeolite technologies.
According to BAFA, these systems are even eligible for €4000 (approximately $4300) in subsidies for new buildings.
Has anyone already gained experience with gas heat pumps? I would be very interested. Of course, the package is likely more expensive than a standard condensing boiler with solar, but after deducting the €4000 (approximately $4300) subsidy, it doesn’t look so bad, especially since it is supposed to be 30% more efficient.
I have made a decision for our new construction project: we will opt for a gas condensing boiler with solar instead of an air-to-water heat pump. The reasons are lower costs, less dependence on a single energy source (electricity), and better efficiency.
Before the “please consider the gas connection and this and that” arguments come up: everything has been considered. The decision is final, and we are comfortable with it.
The only thing we are currently thinking about is using a zeolite gas heating system. I know of two models that are available. The Viessmann Vitosorp 200-F and the Vaillant ZeoTherm. The latter has particularly caught my attention because it combines solar, condensing, and zeolite technologies.
According to BAFA, these systems are even eligible for €4000 (approximately $4300) in subsidies for new buildings.
Has anyone already gained experience with gas heat pumps? I would be very interested. Of course, the package is likely more expensive than a standard condensing boiler with solar, but after deducting the €4000 (approximately $4300) subsidy, it doesn’t look so bad, especially since it is supposed to be 30% more efficient.
xycrazy schrieb:
less dependence on a single energy source (electricity)You do realize that electricity is generated from many different energy sources (including gas but also wind, hydro, nuclear, coal, and so on), whereas gas is just gas. Less dependence on a single energy source looks different... With solar thermal instead of photovoltaic, the same issue comes up again. That only works for hot water/heating.
S
Sebastian7928 Sep 2015 09:32Well, with gas you depend on two types of energy, while with electricity you depend on just one—electricity—and you don’t have two types whose prices fluctuate.
B
Bauexperte28 Sep 2015 10:01xycrazy schrieb:
Has anyone had experience with gas heat pumps? No, not yet. Since the use of gas as before will be difficult starting in April, it is only a matter of time. On the other hand, when I read things like this:*"Because compared to the already very efficient condensing boilers, gas heat pumps can achieve efficiencies of over 135%"
I’m not sure if I should take the manufacturers of this technology seriously at the moment.
*Source quote: Natural gas information portal
Best regards, Bauexperte
N
nordanney28 Sep 2015 10:12Does the heat pump you prefer also require an additional (expensive) ground drilling? Unfortunately, I have no experience with that, since we only have a geothermal heat pump.
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