Mueller W02747 Elbow or excessive gas pressure

or excessive gas pressure

which are common symptoms of an incorrectly sized or worn orifice

Once the plenum temperature drops to a stable 110°F

Does this gasket kit work with Lochinvar Armor wall-mount units

Mueller W02747 Elbow or excessive gas pressureThe Mueller W02747 is a professional grade 1 1 8" OD Long Radius 90 Degree Elbow engineered for high demand HVACR and pressurized plumbing environments. As a veteran preferred wrought copper fitting, the W02747 is designed with a long radius profile to minimize internal turbulence and pressure drop, which is essential for maintaining optimal flow rates in modern high efficiency systems. This sweat connection elbow (C x C) provides a reliable,