Ul 1738 Listed Vent Pipe

Look for the system 1738 label and the mark of a recognized certification agency as assurance that the venting system being used is certified.

Ul 1738 listed vent pipe.

360 careers 5g communications acoustics audio technology aerospace technology alternative renewable energy appliance technology automotive technology automotive technology video edition building design building blocks for the iot chemical manufacturing coatings surface engineering components for rf microwave construction. All pipe and fittings are ul1738 approved for category ii iii and iv venting applications. Ul 1738 certified vent system for categories ii and iv gas burning appliances rated for flue gas temperatures up to and including 149 f 65 c pipe fittings cement and venting accessories sizes include 2 3 and 4 the use of plastic venting systems on gas fired water heaters furnaces and boilers has undergone a significant change. Selkirk models ps ips g with special gas vent listing are positioned to complement heatfab saf t vent product by broadening the applications on commercial and industrial projects requiring large diameters above 32 id specifications calling for double wall construction with greater than 1 of insulation and projects requiring a 2 hour fire rated chimney.

Find the most up to date version of ul 1738 at engineering360. Markings on pipe and fittings are required by ul 1738 and clearly distinguish a certified gas venting system from every day non certified plumbing pipe and fittings. Ul 1738 ul 1738 is a standard for venting systems for gas burning appliances categories ii iii and iv. It covers both metallic and non metallic materials and includes over 50 material and system performance tests.

Installations a ul 1738 vent system may be used only where the appliance manufacturer s installation instructions allow the use of such a vent system. The nfpa 54 18 and ifgc 18 fuel gas codes now recognize the ul 1738 venting standard across the united states. For use in u s. In the united states centrotherm obtained the ul 1738 listing for its innoflue polypropylene vent systems at substantial cost even though current national building code does not require it.

Ul standard ul 1738 edition 3 standard for venting systems for gas burning appliances categories ii iii and iv edition date. System 1738 flue gas venting offers a full range of pipe fittings and termination components that are manufactured from an engineered pvc compound rated for a. Using products listed to ul 1738 provides the highest possible chance of success for flue gas venting applications. It is centrotherm s belief that life safety products should meet the applicable safety standard.

Category iii refers to positive vent pressure which is created by exhaust blowers in unit heaters. October 04 2010 ansi. What is ul 1738. Vent systems listed to ul 1738can be plastic or mantellic flexible or rigid and can be single wall or concentric vent systems.

The use of plastic venting systems on gas fired water heaters furnaces and boilers has undergone a significant change.