1. Storey height
Because ground heating is buried in the underground heating system, such words will increase the height of the ground, in general, will increase 6 to 8 centimeters, so it is necessary to fully consider the height of the room after heating on the life has no impact on life.
Two. Water temperature
Floor heating belongs to low-temperature floor heating, requiring water temperature of 60 degrees centigrade. The water temperature of central heating is at 75-85 C, which requires the installation of mixed water cooling system. Some warm companies do not install mixed water cooling device at the same time in the design of ground heating. One is that the trouble two will increase the cost of investment. In terms of a set of 60 flat meter unit, if the cost of mixed water unit is added to 2/5 of the total cost of the earth's heating, some non professional warm companies will not give the design of mixed water cooling device.
The ground heating price in Ji'nan should pay attention to the slow warming when the ground heating is first used. At the beginning, the water temperature is 18, second days and 25, third days 30 degrees, until the water temperature is designed. If the heating is too fast, the thermal storage layer and the ground decoration material will be cracked and twisted because of the sudden heat expansion.
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