Wood heating in a very well-insulated house. How to implement?

First of all, thank you for your answers.

Even from today's perspective, these heaters only make sense in new buildings if the fuel is available cheaply or free of charge.

As I wrote, I get the fuel quite cheaply. I once made a comparison with gas. To achieve the same heating effect, wood costs me only a third of what gas does.

Check out jenni.ch, you can find something there

Thanks, I will have a look at that.


So, as it looks, in terms of acquisition costs, an air-to-water heat pump is really already better now, since you can save a lot.


I am basically also convinced that a heat pump has many advantages in many respects for a well to very well insulated house. What bothers me massively, however, is the dependence on electricity and electricity prices. And a photovoltaic system doesn’t help much if the sun hardly shines in winter or there is snow on it…


Regards Specki

What massively bothers me, however, is the dependence on electricity and electricity prices.

Personal opinion: the topic is being blown way out of proportion.

1. In the long term, energy forms will become more or less more expensive in sync, meaning a massive (!!) imbalance will somehow always be balanced out through market mechanisms ("Electricity is too expensive, from now on I’ll heat with small peppercorns!" => the neighbor is just as smart => What happens now to the peppercorn price?).

2. Electricity even has the advantage that it is so fundamentally essential for the functioning of our economy and society that politics alone will ensure it does not become unaffordably expensive.

Yes, personal opinion. Of course, one can, should, and may see it differently.

Regards

I have a wood gasifier in my new building and a gas boiler as a backup. Currently, 2000 liters of buffer storage are installed. There is still space for another 1000 liters. It is important that the heating room is naturally somewhat larger and the wood must also be stored somewhere. For 130 sqm houses, which anyway only consume 40 euros worth of gas per month, it is probably not worth it. If you calculate the work and everything around it, it is probably not much cheaper than other types of heating. It is a matter of attitude.

Hello ,

thank you for your brief report.
The thing with the large buffer storage confirms my thoughts. What type of heating water distribution do you have? Underfloor heating, radiators, wall heating?
What supply temperature do you run there?
How well insulated is your house? A KFW standard?
Why did you choose gas as a backup system? My plan would be to use electricity as a backup, since I currently assume that it is hardly ever used at all.
How often do you heat up the stove?

I would appreciate a few more details from you :)

It is a matter of settings.

Yes, it certainly is. But my mindset is heading in this direction... now I just want to find out to what extent it also makes sense :)

Regards
Specki

So gas as a backup when you are on vacation, or sick, or on a business trip, whatever. Also to avoid becoming a slave to the heating. If you don’t feel like firing up the carburetor, then you don’t have to.

I have 3 heating circuits, underfloor heating ground floor, underfloor heating upper floor, radiators.

Underfloor heating is about 350 sqm.

I only have radiators in the bathrooms and one in the hallway. Separate heating circuit because I sometimes want to run those a bit warmer.

The flow temperature depends on outside temperature.

For hot water I use a fresh water station.

I can’t give any long-term experience yet, because I am already heating but not living there yet.

KfW – no idea. 24 cm aerated concrete, 2x6 cm insulation, 4 cm air layer, clinker.