How to choose a gas boiler?

If you intend to purchase such an important and expensive equipment for heating your home, but do not know how to choose a gas boiler, this article is just for you. We will help you understand the types of boilers available today and understand what is right for your case.

Which gas boiler should I choose?

First of all, by the installation method, all gas boilers are divided into floor and wall. It would seem that a suspended analog significantly saves space, because in dimensions it is not small. But, on the other hand, the pendant boilers have a lower mass and, correspondingly, a lower power.

If you have enough 18-32 kW, then, in principle, you can consider the option of a suspended boiler. But if more power is needed, it will be provided only by the floor version of the boiler - it can have 100 kW and more.

We will understand further how to choose a gas boiler floor and hinged. And since we have touched kilowatts, we need to explain how to choose the power of the gas boiler. The calculation is based on the dimensions of the heated premises: for apartments with a ceiling height of 2.5 meters, multiply every 10 m2 & sup2 by 1 kW and in accordance with this calculate the required boiler output. For example, for an apartment of 200 squares it is enough to have a boiler with a capacity of 20 kW.

Further, depending on the power adjustment, the boilers are:

• single-stage;
• two-stage;
• with smooth regulation.

Choosing one of these options, give preference to two-stage or smoothly adjustable models - they will make you feel comfortable at any temperature in the street and save gas consumption as much as possible.

Another criterion that helps us understand how to choose a gas boiler, this is the material for the heat exchanger. It can be cast iron, steel or copper. Cast-iron heat exchanger is durable and durable, but it is heavy and expensive. Steel - used in low-cost models. Steel is lighter and more plastic, but easily corrodes. Copper heat exchangers are simply ideal for wall-mounted boilers, as they are light, compact and do not rust.

It is necessary to know that there are boilers with an open or closed combustion chamber. The open ones are endowed with natural draft, quite simple in operation, but they require good ventilation in the room where they are installed. Boilers with closed chambers are more complicated, but they do not need ventilation and chimney. The influx of combustion air is attracted from outside the room.