Gas-fired furnaces have been redesigned to accommodate the new Air Quality Management restrictions. Complete Heating and Air has taken all the training classes on the new Ultra Low NOX gas-fired furnaces which require computerized combustion analyzers to ensure operation. We are also experts at the old style gas furnaces, air handlers, and hydronic heaters. Your safety is one of our top concerns so we also utilize carbon monoxide analyzers to keep you and your family safe.