This direct vent wall pass-through thimble is made by Harman and is listed as a compatible venting component for Harman pellet stoves and inserts when using Simpson Pellet Vent Pro pellet venting.
Venting and 3″ OAK hose sold separately.
- The exhaust opening will accommodate both 3″ and 4″ vent diameters and a 3″ outside air flex hose.
- The term “direct-vent” means that this thimble supports exhaust venting AND an outside air connection all in one
- Supports the outside air temperature probe for stove models with a touchscreen controller
- Requires only one narrow opening for installation, 7 1/4″~7 1/2″ square
- Tough 316T stainless exterior with low profile intake hood
- Can accommodate a nominal wall thickness between 4″ and 10 5/8″