SKU: 41421944631
Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
Five power settings allow up to 19 hours of continuous burning on lowest setting
Designed for Osburn wood stoves and inserts
29 kW) Maximum overall heat output rate 49
Ultimate Heavy-Duty Cast Iron
VRT4036ZEN Fuel Type Natural Gas
DuraVent DuraFlex SW 4" x 60' Stainless Steel Custom Length d7.25 Five power settings allow upDuraFlex SW is a smooth inner wall, flexible stainless steel chimney liner. The smooth inner wall provides for no output reduction allowing for full appliance efficiency. Smooth wall construction eliminates ridges that restrict flue gas flow and collect deposits. The lack of ridges facilitates cleaning and maintenance. DuraFlex SW is ideal for relining masonry chimney for wood and gas burning appliances. Listed to UL 1777. What's Included Length
