Firstly, the heat source of pool water heating should meet the following requirements:

1. Where conditions permit, solar energy, heat pump, industrial waste heat and waste heat should be preferred as heat sources;

2. High temperature water and steam from urban heating network or district boiler house or high temperature water and steam from boiler house in building and waste heat of air conditioning should be selected as heat source;

3. When the heat source is used unconditionally, a gas-fired or electric water heater unit can be set to provide the heat source.

Secondly, the heating mode of swimming pool should be determined according to the use requirements and heat source conditions as follows:

1. When the solar energy is used as the heat source and the collector is made of non smooth material, the direct pool water heating method should be adopted;

2. When using the heat source specified in 2 and 3 above, indirect heating shall be used.

The temperature of the pool water shall be determined according to the purpose and object of use of the swimming pool and the provisions of article 3.3.1 of this regulation.

The duration of initial heating of pool water shall be determined according to the following requirements: application, pool structure, material characteristics and heat source conditions

1. The swimming pool should use 24-48 hours;

2. Several water amusement pools should be heated according to the water capacity of the pool, and should not exceed 72 hours;

3. The swimming pool made of reinforced concrete shall be calculated and determined according to the water temperature rise of not more than 0.5 ° C per hour.

The configuration of pool water heating equipment shall meet the following requirements:

1. The capacity of the heating equipment should be 1.1 ~ 1.2 times of the calculated load, and the water heating equipment for different swimming pools should be set separately;

2. A group of pool water heating equipment can be shared by multiple water amusement pools sharing the pool water circulation purification treatment system, and the pipeline setting shall comply with the provisions of article 4.1.5 of this regulation;

3. The water heating equipment of each swimming pool and the water amusement pool conforming to the provisions of paragraph 2 of this article shall be selected as no less than two heating equipment working at the same time;

4. Heating equipment shall be equipped with automatic temperature control device.

Finally, the indoor environment temperature of swimming pool should be 2°C higher than the set water temperature, and should not be higher than 30°C.