This paper analyzes the reasons of the problems for high heating cost and co exceeding standard in the house air -of some users adopting household gas heating, and advances methods of solving them.

本文分析了一些用户采用燃气供暖时出现的“供暖费用高”和“室内空气CO超标”的原因，提出了解决这两个问题的办法。

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ii. Tap water, heating, air conditioning, hot water, coal gas, lipuefied petroleum gas, naturalgas, methane gas, coal/charcoal products for household use;

自来水、暖气、冷气、热水、煤气、石油液化气、天然气、沼气、居民用煤炭制品；

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Compares the features of household heating by gas fired boilers and coal fired central heating in applicability and economics.

比较了燃气炉分户供暖与燃煤集中供暖在实用性与经济性方面的特点。

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