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- All FasNSeal (single-wall) vent lengths and components feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90 deg from mechanical locking bands. This construction feature allows for ease of installation. The 1/2 in air space between the inner and outer wall on FasNSeal W2 helps to reduce the clearance to combustibles in addition to creating a heat shield for additional safety. All FasNSeal components which come in contact with exhaust gases and condensates are now silicone free. This important design and manufacturing feature greatly reduces the chances of system breakdown and failure. The main problems with silicone are there are too many adhesion factors which are very difficult to control and the process of binding similar materials with an epoxy, which can weaken the bond over time. Welded seams ensure a leak-free product that is meant to last.
DuraVent® FasNSeal® Severe Weather Kit, 4 in Dia, Stainless Steel
- Use to vent wall mounted boilers or tankless water heaters
- Use in areas of extreme wet and cold weather
- Designed to prevent appliance freeze-up while maintaining an obstruction free exhaust
- Add a 90 deg elbow and vent length on the outside of the house to clear high snow lines
- Use with natural gas or propane Categories II, III and IV appliances or Canada's Type BH Gas Vent Systems, having a maximum rated operating temperature of 480 deg F and a maximum positive pressure of 15 in (FasNSeal Flex 6 in) water column
- (1) Wall Thimble with Termination Tee, (1) Adjustable 90 deg Elbow, (1) Universal Appliance Adapter with (1) Condensate Drain and (1) Back Draft Preventer
- Diameter4 inMaterialStainless SteelManufacturerM&G DuraVentManufacturer #FSSWWMK4SeriesFasNSeal