New heating system with pellet or infrared + hot water

Hello,

we have a lot on our minds at the moment. After several photovoltaic offers and many impulses to think about, we are more than uncertain. I will describe our current state and our ideas.

Old half-timbered house (about 160m² when renovated) is being modernized by us and has a southwest orientation.
The heating system is gas but has to be relocated (down to the basement) and the chimney also needs to be renewed.
The heating system, meaning the piping, has to be completely renewed.
We were already leaning towards pellets in the basement (with storage room screw conveyor).
Now we have also initially dealt with infrared heating systems.
We want to become largely self-sufficient.

We have photovoltaic offers of around 4,xx KWP, 9.9x KWP, and also 15.6 KWP.

Basically, we find the idea of "as much as possible" photovoltaic sensible.
However, it will probably get complicated with the Renewable Energy Act starting at 10 KWP.

We would also like to (partly) heat our hot water with it. Complete is not possible as far as we know.
The gas heating system only has a relatively small water tank. We would plan that new now.

The topic of infrared heating is our last confusing topic. Would you recommend it for a freshly insulated old building? We could save the entire piping and the creation or modification of a chimney.

The only problem is, how do we then heat our water in the bathroom? In the kitchen, a small instantaneous water heater is enough.
But in the bathroom? An instantaneous water heater for a bathtub does not sound very economical, does it?

The photovoltaic system would start in the next 2 months. The rest then over the course of the next year. How would you see the topic? It is quite extensive, but I am open to various opinions.

So many thanks in advance.

CONCLUSION: How do I heat my hot water? Is it possible to heat an insulated house exclusively with infrared? However, a fireplace in the living room should definitely be installed.

Do you want to heat your water with an immersion heater? It's unclear whether that is the best choice. An interesting concept for self-sufficiency is the "solar house" - basically a huge water tank heated by solar thermal energy that can also provide heating during cloudy days. However, the thing is very large and rather difficult to integrate into an old building. Otherwise, PV is certainly not bad - but rather in combination with heat pumps and the screed storage effect (during the day, when the sun shines, run the heating 2-3 ° higher and draw from it at night). I’m not very familiar with pellet concepts - maybe there is something useful with PV as well. Infrared is, I believe, difficult in new buildings because of electric heating... whether that’s a problem in old buildings? Otherwise, I am also uncertain here. Take a look at Heizungsvergleich; a few words are said about it there. To summarize again: in my opinion, a combination of pellet and infrared with photovoltaic is not economical. Either one or the other.

Why not stick with gas? Our newly installed gas heating system has a 210 l hot water storage tank.

How has the water been heated until now?

Since it is an old building, radiators are certainly installed, right?

What should be more independent about pellets than about gas?

Hello,

in principle, you can heat a house with infrared heaters.

Friends of ours also equipped their house, built a few years ago, "only" with infrared heaters - in addition, there is a wood stove in the living area.

What must be said quite clearly, however, is that an infrared heater works with radiant heat - this is a very different kind of heat compared to "normal" radiators or underfloor heating. Therefore, I would strongly recommend seeing such a heater in live operation to feel how it works.

Regards,

Dirk

Hello,

basically, you can heat a house with infrared heaters.

That is correct; with smart negotiation with the energy supplier, they can also be billed under the heat pump tariff if no photovoltaic system with storage is available. However, there are significantly nicer radiation heating options; naturally, they are more expensive than the mentioned infrared heaters.

What must be clearly said, however, is: An infrared heater works with radiant heat - that is a completely different kind of heat than from "normal" radiators or underfloor heating. I would therefore strongly recommend seeing such a heater in live operation to feel how it works.

That is also good advice, because a radiant heater really works differently; the air in the room remains unaffected. Nevertheless, there is no feeling of cold in the room, provided the calculations match the later size of the radiant heater correctly.

Rhine regards

Hello,

basically, you can heat a house with infrared heaters.

Friends of ours also equipped their house built a few years ago "only" with infrared heaters - in addition, there is a wood stove in the living area.

However, what must be said very clearly: an infrared heater works with radiant heat - that is a completely different type of heat than from "normal" radiators or underfloor heating. I would therefore strongly recommend seeing such a heater in live operation to feel how it works.

Regards,

Dirk

Radiant heat is "different," but by no means a disadvantage; the living climate is super comfortable. Heater lamps and underfloor heating are also not mutually exclusive in principle. We have underfloor heating (electric) everywhere there are tiles, and heater lamps in the rooms with parquet flooring. Works perfectly. Of course, it must be clear that heating with electricity is not particularly efficient. However, if you have a low-energy house where only a small residual heat demand exists, in my view, that is a reasonable alternative. Whether, however, that is an adequate solution in an old building, as written here, I dare to doubt. But I'm just a layman ;)

Best regards