其中的一个选择是养护水，电或天然气的获得热水器比更有效率。
One of those options is conserving water and electricity or gas by getting a water heater than is more efficient.
试验结果表明冷凝式天然气快速热水器有很好的实用价值。
Experiment results show that the natural gas instantaneous water heater with condensation has a high practical value.
配套设施：精装，家具齐全，宽带，天然气，灶具，热水器，有线，彩电。
Matching facilities: Hardbound, the furniture is complete, wide band, natural gas, cookware, water heater, wired, color television.
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