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With the highly development of internet of things technology, smart home break out a new vitality in the field of heating. As a strong central heating capacity, gas boiler can be widely used in field of large area heating in the north of China. But the traditional control method of gas boiler does not have network function. In order to solve the limitation of gas boiler with traditional control method, a smart home heating remote control system based on internet of things is presented. It will keep the original serial communication mode between display panel and control panel. And, a data acquisition module based on OpenWrt is added to complete the remote control of gas boiler in the case of maintaining system communication. After the experimental test, the mobile terminal equipped with remote control APP can communicate with gas boiler normally, and complete the specified operation. Besides, the gas boiler can be a home gateway, which can construct a home network automatically, and allow other mobile device connect. This system allows the user to get rid of the restrictions of temperature setting on gas boiler, which can make gas boiler more intelligent and convenient, and providing a reference network reconstruction scheme for gas boiler remote control.