The owner of the house came today afternoon, and he installed it. The heater is heating the room for more than one hour. Currently the room is pleasantly warm.
I had a little amount of wood in the room.
A few minutes ago I put more wood into the fire.
The heater is working properly (there is no smoke in the room).
The problem is the amount and the type of the wood. These woods are not thick, and they do not last long in the fire. Currently there is no more wood. I will talk to the owner of the house about where, how and what type of woods can I get, and for how much.
Otherwise currently everything is good.
One hour ago there were woods in the room. Thin, little woods. They burn very quickly.
Of course the swallow nest on the top of the pipe has been removed.
Have a nice day. All the best. Greetings and much love from Hungary.