ᐅ Exhaust Air Heat Pump vs. Air-to-Water Heat Pump + Photovoltaics: Experiences?
Created on: 17 Apr 2019 15:15
J
johartje
Hello everyone,
We are hopeful to secure a nice plot of land in a nearby town this summer, so we are currently working on concrete house plans. We have decided to build through a general contractor but are still unsure which one to choose. Our shortlist includes Helma and Viebrockhaus. The main difference between these two is their approach to the heating system.
One provider recommends an exhaust air heat pump and currently advises against photovoltaics. The other exclusively installs air-to-water heat pumps combined with a central ventilation system (with heat recovery) and photovoltaics with battery storage.
Since these two recommendations sound completely contradictory to us as laypeople, my wife and I thought you might be able to shed some light on this.
Thank you in advance.
Johannes
We are hopeful to secure a nice plot of land in a nearby town this summer, so we are currently working on concrete house plans. We have decided to build through a general contractor but are still unsure which one to choose. Our shortlist includes Helma and Viebrockhaus. The main difference between these two is their approach to the heating system.
One provider recommends an exhaust air heat pump and currently advises against photovoltaics. The other exclusively installs air-to-water heat pumps combined with a central ventilation system (with heat recovery) and photovoltaics with battery storage.
Since these two recommendations sound completely contradictory to us as laypeople, my wife and I thought you might be able to shed some light on this.
Thank you in advance.
Johannes
B
boxandroof17 Apr 2019 22:01Absolutely yes.
Photovoltaic systems always make sense, no matter what type of heating you use.
Photovoltaic systems always make sense, no matter what type of heating you use.
H
hampshire17 Apr 2019 22:04Hello Johannes,
Approach this with an open mind and trust your body’s feelings. Visit model homes from different builders. Spend some time in closed rooms—sometimes smaller rooms, sometimes larger ones—with the windows shut.
You will notice that the houses feel different. Take your impressions seriously when making your decision. Technically, you can be told a lot, and there are indeed several really good concepts out there. You will be living in your house, not anyone else. Do you like to sleep with open windows, and can the technology handle that? Take that seriously.
I find many energy-efficient heating systems to feel "stuffy." My eyes (burning from dryness), ears (pressure sensation), and respiratory tract (slightly irritated) do not like that. Why would I build something like that just because others say it’s right and better?
Of course, energy costs are an important factor. But saving money at the cost of feeling less comfortable is, in my view, a life-unfriendly prioritization. Be self-aware.
Regarding photovoltaic systems: In my opinion, solar energy is a gift. Just accept it. The system pays off sooner or later. The battery usually helps shorten the payback period.
Approach this with an open mind and trust your body’s feelings. Visit model homes from different builders. Spend some time in closed rooms—sometimes smaller rooms, sometimes larger ones—with the windows shut.
You will notice that the houses feel different. Take your impressions seriously when making your decision. Technically, you can be told a lot, and there are indeed several really good concepts out there. You will be living in your house, not anyone else. Do you like to sleep with open windows, and can the technology handle that? Take that seriously.
I find many energy-efficient heating systems to feel "stuffy." My eyes (burning from dryness), ears (pressure sensation), and respiratory tract (slightly irritated) do not like that. Why would I build something like that just because others say it’s right and better?
Of course, energy costs are an important factor. But saving money at the cost of feeling less comfortable is, in my view, a life-unfriendly prioritization. Be self-aware.
Regarding photovoltaic systems: In my opinion, solar energy is a gift. Just accept it. The system pays off sooner or later. The battery usually helps shorten the payback period.
D
Deliverer18 Apr 2019 13:44hampshire schrieb:
The battery usually helps shorten the payback period.If you get it for free...
Otherwise, it more likely prevents it.
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