DW is our flagship product line, used in high temperature and combustion gas venting. This product is the most versatile product offered in the industry.
CS & CS Plus are designed specifically for special gas venting applications. They are UL 1738 tested & listed venting systems for categories, II, III, IV or in Canada type BH gas vent. Our CS model is used with appliances burning natural gas and propane. Other standard features include:
The (CM) designation in our part identification number represents our Model CS with an accessory collar (spot welded) added to one end (male end) of the flange that provides an installer friendly connection for our customers, especially with larger diameter sizes.
Model MW is a viable competitive option. Our single wall product is limited in use and not to be installed in a fully enclosed combustible enclosure. Model MW can only be enclosed on two sides with combustible materials. Do not wrap the MW vent system or place any type of insulation in the required clearance space in an effort to reduce the required clearance or as an attempt to create a fire protective enclosure. Clearance to non-combustibles is as required for installation, access, inspection, or per local code
The MW special gas vents have a maximum operating temperature of 550° F (288° C) and may be used with negative, neutral, and positive vent pressures (40″ water column maximum positive pressure).