New construction heating technology pellet + tiled stove

Hello everyone,

I am currently planning the new construction of my house. (old house will be demolished in August)

I myself work 6 months a year on weekends in a forest area. By thinning the forests, about 20-40rm of wood per year are available to me, which should more than cover my demand.

In my new house, for ecological reasons, I plan to completely do without fossil energy suppliers.

Now to my project.
The house will have about 160m² of living space + a large open space.
The open space will be located in the living room, as will my planned tiled stove.
The entire house is equipped with underfloor heating and heat recovery through residential ventilation.
In the basement, a tiny pellet system will take the place as central heating. The energy value of the house will not exceed 50-60kWh.

Since a 1000l stratified buffer tank is provided by the pellet heating, my idea now is to also connect the tiled stove there.
That means the waste heat of the tiled stove will be distributed through the residential ventilation. The water jacket will additionally supply building water and the underfloor heating with energy.

In summer, the building water is heated exclusively by solar + pellet heating.

Most of the electricity is generated by photovoltaics.

What do you think of the concept and where do you have concerns (also from an economic point of view)?
Do you perhaps have any ideas or tips?
With which stove inserts have you already had experience?
Is there something I might not have considered?

Thank you very much for your help

Best regards
Guan-di

Why tile stove AND pellet? One of the two is completely sufficient. The tile stove will already cover the entire heat demand in winter, and if it has a water jacket, it will also charge the storage tank. So what exactly is the pellet boiler supposed to serve? Then better just one heat generator, preferably wood, since you can get it cheaply. Although there is no subsidy for a wood stove with a water jacket, the cheap wood compensates for that.

And pellet heating in summer for domestic hot water?? Solar is completely sufficient for that. However, instead of solar, I would rather go for a domestic hot water heat pump, because it cools the house in summer and uses the electricity from the photovoltaic system. That also leaves more space for the photovoltaic system. Although solar logically belongs on the facade anyway.

Hey, thanks for your opinion.

The problem is that the house is empty for at least 24 hours several times a week because both my wife and I work 24-hour shifts.
When we come home from work, we don’t feel like first lighting the stove and waiting for the water to get warm.
That’s why the pellet heating.
Solar does provide the hot water I need in the summer, but during the transitional seasons it looks worse again.
I need to find out more about the domestic hot water heat pump. I haven’t had any information about that so far.

Best regards
Guan

With a 1000L storage tank, the water in the buffer should still be very hot after 24 hours. And to charge the buffer, you don't need a pellet boiler; the water-heating stove is sufficient. Saves you about 10k euros anyway. Google "temperature loss buffer storage". The domestic hot water heat pump provides warm water in summer with photovoltaics at a "zero rate" and in winter it absorbs the excess air heat from the stove (with a properly placed air intake pipe). Costs depending on volume from 700 euros without installation.

Hello, why don't you use a gas boiler instead of the pellet heating system? It is significantly cheaper and can quickly heat the domestic water when needed... Our heating concept is exactly like that... Best regards Fragi

Hi,
It's simply about becoming more independent from the [Stadtwerken] etc.
I have nothing against gas. But I do have something against the pricing policy.
Pellets are also getting more expensive, but the idea of being dependent on the gas suppliers doesn't reassure me.
There will always be wood.

Regards