for pipes larger than 3 inches

If you are seeing discharge from the relief valve vent

Can this valve be used for both Natural Gas and Propane (LP) units

overcoming common ductwork restrictions

allowing it to withstand extreme temperature ranges from -40°F to 251°F while resisting oil

Grundfos 98126820 Pump 320819-301 for pipes larger than 3The Grundfos 98126820 MAGNA3 32 60 GF is a high efficiency 115 230V circulator pump engineered for modern hydronic systems requiring precise flow control. This model features a cast iron housing with a 6 1 2 inch port to port length, optimized for heating and cooling applications, including ground source heat pump systems and hot water recirculation. As a veteran grade ECM pump, it utilizes a permanent magnet motor to achieve an Energy Efficiency