燃油燃气热水锅炉
燃油燃气热水锅炉-
朗通系列燃油、燃气热水锅炉是引进德国技术，采用先进生产设备和精细的生产工艺制造的高新热能产品。
Langtong series fuel and gas hot water boilers are high-tech products of heat energy made with introduced German technology and advanced production equipment and fine production technology .
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比较了空气源热泵、燃油热水锅炉、燃气热水锅炉、电热水锅炉及太阳能热水器的技术经济性，利用空气源热泵制备热水的技术经济性最优。
The technical economy of air source heat pump , oil-fired hot water boiler , gas-fired hot water boiler , electric hot water boiler and solar water heater is compared , and the technical economy of using air source heat pump to prepare hot water is optimal .