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Chris28062 Mar 2017 18:01Hello everyone,
My girlfriend and I are planning to fulfill our dream of owning a home, and we have already gathered several offers. However, we are completely unsure about the building services engineering…
We would like to be as independent as possible and avoid using an oil heating system. In addition, we are interested in using firewood as a heat source (we own a piece of forest). I realize this involves work, but I enjoy doing it (I currently process about 5-6 cubic meters of fallen trees per year). Or is heating with wood no longer practical nowadays?
Framework conditions:
- Single-family house with approximately 190 sqm (2,045 sq ft) of living space
- Underfloor heating
- Outdoor pool planned (about 6 m x 3 m (20 ft x 10 ft))
Can you recommend something? We would also like to install a photovoltaic system with battery storage… Is that a sensible idea or not?
I would be very grateful for your advice.
My girlfriend and I are planning to fulfill our dream of owning a home, and we have already gathered several offers. However, we are completely unsure about the building services engineering…
We would like to be as independent as possible and avoid using an oil heating system. In addition, we are interested in using firewood as a heat source (we own a piece of forest). I realize this involves work, but I enjoy doing it (I currently process about 5-6 cubic meters of fallen trees per year). Or is heating with wood no longer practical nowadays?
Framework conditions:
- Single-family house with approximately 190 sqm (2,045 sq ft) of living space
- Underfloor heating
- Outdoor pool planned (about 6 m x 3 m (20 ft x 10 ft))
Can you recommend something? We would also like to install a photovoltaic system with battery storage… Is that a sensible idea or not?
I would be very grateful for your advice.
Hello,
Regarding fine dust emissions and other pollutants, any old oil heating system is likely better than a wood stove. But that is probably not your main concern.
If you own your own forest and see cutting wood as a workout alternative, that’s definitely not a bad thing. However, keep in mind that you might want to sell the house someday and the buyer may not have a forest, or consider that as you get older, say around 60, cutting wood may no longer be an enjoyable activity but rather hard labor. Or your living situation could change, and you may simply no longer have the time or desire for constant wood processing and stove maintenance.
In other words, I would always recommend planning for the possibility of adding a gas heating system or heat pump later on.
Best regards,
Andreas
Chris2806 schrieb:
I am aware that this involves work, but I really enjoy it (I already process about 5-6 cubic meters of wood per year from fallen trees). Or is heating with wood no longer a reasonable option?
Regarding fine dust emissions and other pollutants, any old oil heating system is likely better than a wood stove. But that is probably not your main concern.
If you own your own forest and see cutting wood as a workout alternative, that’s definitely not a bad thing. However, keep in mind that you might want to sell the house someday and the buyer may not have a forest, or consider that as you get older, say around 60, cutting wood may no longer be an enjoyable activity but rather hard labor. Or your living situation could change, and you may simply no longer have the time or desire for constant wood processing and stove maintenance.
In other words, I would always recommend planning for the possibility of adding a gas heating system or heat pump later on.
Best regards,
Andreas
A wood gasifier makes sense only if the wood is free or very cheap to obtain; otherwise, it is less practical. Additionally, there is the required storage and effort to keep the heating system running. Whether you still want to adopt this approach in 2017 is up to you. For me, it feels like something from 1902, comparable to carrying coal by hand.
The air quality in new housing developments is already burdened enough by cheap, improperly used decorative stoves. As a neighbor, I would be glad if no one was also deliberately heating with wood.
Storage batteries for photovoltaic systems are more of a hobby and not cost-effective, to put it briefly. Photovoltaics can be economical, especially through self-consumption. Heat pumps are a good fit because they are large electrical consumers that gratefully convert photovoltaic electricity into heat.
For combustion systems—whether wood, pellets, gas, or others—solar thermal systems are more suitable. The goal is to at least turn off the heat generator during summer and cover all hot water needs through solar thermal energy.
The air quality in new housing developments is already burdened enough by cheap, improperly used decorative stoves. As a neighbor, I would be glad if no one was also deliberately heating with wood.
Storage batteries for photovoltaic systems are more of a hobby and not cost-effective, to put it briefly. Photovoltaics can be economical, especially through self-consumption. Heat pumps are a good fit because they are large electrical consumers that gratefully convert photovoltaic electricity into heat.
For combustion systems—whether wood, pellets, gas, or others—solar thermal systems are more suitable. The goal is to at least turn off the heat generator during summer and cover all hot water needs through solar thermal energy.
Chris2806 schrieb:
(I already use about 5-6 cubic meters per year from trees that have fallen). Or is heating with wood no longer practical nowadays?From an ecological perspective, I consider using windthrow or thinning wood "unprocessed, just as it lies in the forest" to be more sensible than first converting the wood into pellets or similar products, since every form of processing consumes energy (or counts as extra exercise if you do it yourself with an axe).
What is economically viable is unfortunately also subject to changing political trends. Therefore, I would never design a heating concept too narrowly focused on specific energy sources.
The emissions produced during combustion always depend, among other factors, on parameters such as combustion temperature.
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Bieber08152 Mar 2017 22:44Chris2806 schrieb:
Basic conditions:
- 1 single-family house with about 190 sqm (2045 sq ft) living area [...] planned outdoor pool (approx. 6m x 3m / 20ft x 10ft) [...] would also like to install a photovoltaic system with storage... In my opinion, a ground-source heat pump is the obvious choice here. Budget should not be a limiting factor, and the photovoltaic system fits well with that.We are also building a single-family house of 200 m² (2,150 sq ft) with geothermal heating using ground collectors and a heat pump. There will be underfloor heating. Additionally, since we own a small forest area, we are installing a 7 kW wood stove to be more independent from the heating system during transitional seasons and to support it in winter. We are also planning a photovoltaic system, but we are postponing its installation for now due to cost reasons and the still immature energy storage technology.
This might be an option for you as well, since you could use your own wood but wouldn’t be completely dependent on it.
This might be an option for you as well, since you could use your own wood but wouldn’t be completely dependent on it.
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