Heat Controller GLUA is a group of gas furnace models in the company's GL series. These furnaces are produced by Comfort-Aire and Century, divisions of Heat Controller. The GLUA series are energy-efficient, with an annualized fuel utilization efficiency (AFUE) rating of ninety percent.
The GLUA furnaces are upflow models and feature an induced draft blower. This feature keeps cold air out of the system. The controls have a diagnostic center that alerts owners of any problems and the system is designed for air conditioning or air cleaning readiness.
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