A high-efficiency variant of our DTH-DTHr exchanger! Also available in two versions, “ETL listed” (DTH model) and “ETL recognized” (DTHCr model).
This 4-pass tube and drum condensation exchanger with a minimum 90% combustion efficiency rating reduces heating costs while maintaining precise temperature control. Its turndown ratio is currently among the highest in the market. Operates with propane or natural gas.
In the DTHC version, this exchanger can also be used as a duct heater.
