A comment
Floor boiler Siberia 11, purchased instead of the old gas boiler. The area of the house is not large - 60 sq.m., in general, this model is designed up to 110 sq.m., I took it specially with a margin, better more than less. The boiler was installed without forced circulation of water, this was done because the heating system has a remarkable heat transfer and efficiency. Outwardly, the boiler looks decent, a white column, there is nothing superfluous, and the main attention is not particularly attracted to itself.
In management, I also did not find anything complicated. There are many sensors, the automation is all Italian and of high quality. For safety, I'm sure of this unit. Plus, the model is economical and completely non-volatile. I bought it for about 16,000 rubles. I advise you to purchase this Siberia 11 boiler, I was not disappointed in it, it suits how it works.
pros
Easy to manage and copes with its main needs