The individual heating system with gas-fired hot water heater and the heating system with gas-fired hot water boiler are introduced.
介绍了燃气热水炉单户供暖系统和燃气热水锅炉供暖系统，分析了供暖系统的调节方式。
The individual heating system with gas-fired hot water heater and the heating system with gas-fired hot water boiler are introduced.
介绍了燃气热水炉单户供暖系统和燃气热水锅炉供暖系统，分析了供暖系统的调节方式。
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