Knowledge of building materials: How to choose heating boilers?

Heating is a systems project. The products involved include boilers, manifolds, floor heating pipes, thermostats, etc. They all play different roles. Among them, the heating boiler is the core part of the heating system. Just like the heart of the human body, the heating boiler is mainly selected from the following three aspects.

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1. See area

The power and quantity of the boiler are determined according to the heating area. If it is within 150m2 of heating area, with a 24KW boiler can basically meet the demand for floor heating. If you add a backwater circulation pump, it will make the effect of floor heating better; if it is more than 200m2 of heating area, it should be possible to use a 28KW boiler. However, it is best to add an external high-power circulating pump and mixing valve, so that it can meet the conditions of full heating and open conditions, but also to meet the local opening; if it is 200-300 square meters of heating area, optional 2 24KW boiler district heating, when a boiler problem occurs when the other one can spare. However, this approach will have higher requirements for cost, use cost, maintenance probability, and gas meter.

2. Look at the traffic

According to the needs of domestic hot water, choose the boiler. If it is a condominium, a 24KW (or 28KW) heating and dual-purpose heating boiler can be used. This method is currently the most commonly used, it can meet the use of two hot water taps; if it is a villa, you can choose another water heater with a tank to provide domestic hot water. In this way, domestic hot water is not easily interrupted, and a domestic hot water circulation system can be installed so that any hot water tap can be immediately heated. The villa can also use a positive displacement water heater to provide hot water in series with the domestic hot water of the heating boiler. Domestic hot water has a double guarantee and will not be interrupted, and it will be equipped with a domestic hot water circulation system, regardless of which hot water tap can be opened immediately.

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