38" stainless steel sidearm for heating domestic hot water from outdoor wood boiler.
Sidearm heat exchangers are designed with natural thermo-siphon concept on domestic hot water side.
Traditional sidearms are made of two bare copper tubes. Thus its capacity is decided by the length of
sidearm-tubes and the heat transfer efficiency is very low. Made of stainless steel fin-enhanced sidearm
increases heat transfer efficiency significantly by using finned tube internally, which has surface area five to
eight times bigger than bare tube and produces great turbulence on system side.
With a fin-enhanced sidearm you need only a shorter unit, but get bigger capacity and faster heating.