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Combustion testing equipment is used to verify efficient combustion or identify combustion problems in commercial and industrial heating systems, helping ensure their safe operation. Combustion analyzers measure draft, temperature, oxygen, and carbon monoxide levels generated by oil, propane, natural gas, coal, wood, and kerosene-burning furnaces. Combustion analyzer accessories and supplies—such as printers, draft kits, and smoke testers—enhance the testing and recording capabilities of combustion analyzers.