The 4" round 90° elbow vent pipe is used for many single wall pipe, horizontal vent exhaust applications. Elbows are helpful in avoiding obstructions in installations and when a direction change or offset is required. It can be used with natural gas or liquid propane, Category III appliances. This elbow is a 4 inch round 90° rigid pipe, using Category III Stainless Steel. This piping is UL 1738 / AL 29-4C rated. Some appliances that use Category III Stainless Steel Single Wall Piping include:
- Unit Heaters
- Hi-Efficiency Gas Appliances (including furnaces and water heaters)
- Engineered for use with Category II, III and IV gas-burning appliances only, where the maximum vent gas temperature at the appliance outlet does not exceed 550°F (288°C).
This venting requires 3” clearance to combustibles. Z-Vent Features:
- Gasketed connections
- UL 1738 Rated
- Fusion welded pipe seams
- No sealant required, no cure time, or no call backs
- Air tight seam, smooth finish, better fit
- Metallic special gas vent cut to length on site
- Highest pressure rating in the industry greater than five time the industry standard
Always check your local codes before installing any vented appliance.