Delton Chatham writes:
"The order process was easy to follow, it is a pleasure to do business with people who care about customer service. Keep up the good work.
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All separated combustion units MUST BE equipped with both combustion air and exhaust piping to the outdoors. The unique concentric adapter assembly, required for UDAS heaters, allows for both combustion air and exhaust piping with only one horizontal or vertical penetration hole in the building.