Navien 240A2 Spec Sheet - Navien tankless water heaters & boilers for residential and commercial applications use innovative high efficiency. Low exhaust gas temperatures allow use of pvc (including schedule 40 pvc), cpvc, polypropylene (rigid and flexible) and stainless steel venting. 2 pvc venting up to 75 feet.
Low exhaust gas temperatures allow use of pvc (including schedule 40 pvc), cpvc, polypropylene (rigid and flexible) and stainless steel venting. 2 pvc venting up to 75 feet. Navien tankless water heaters & boilers for residential and commercial applications use innovative high efficiency.