Economical boiler for heating a brick two-story house with an area of ​​180 square meters. meters

Hello! The house is two-story brick, 180 square meters. meters, double-glazed windows, cast-iron radiators and a wall-mounted boiler Mora are installed. I want to change the boiler, could you advise which one to choose?

Dmitry

Expert Answer

Believe me, for a 20-kilowatt device (and your heating unit must be designed at least for this power) and for a detached house of this size, such an expense is considered normal. Therefore, we do not recommend changing the heat generator in order to save energy resources - even if you take one of the newest boilers, then such a replacement will pay off for a very long time.

If you have a question about the planned reconstruction of the heating system, we recommend that you purchase a heating device with a power of 5 kW higher than the optimum, but always with a modulated burner. This will allow to keep the gas flow at the lowest level and at the same time obtain an efficiency higher than 95%.

Another option to save money is the most economical condensing boilers, which operate in low-temperature heating, and, as a result, are characterized by increased thermal efficiency and low fuel consumption. The best units on the market are Viessmann, Vaillant, Baxi, Buderus, etc.