Cumberland Stove Works MF3800 Manual De Usuario

The following installation guidelines must be followed to 

ensure conformity with both the safety listing of this stove 

and to local building codes.
note:  where passage through a wall, or partition of 

Pellet venting pipe (also known as L vent) is constructed

of two layers with air space between the layers. This air 

space acts as an insulator and reduces outside surface 

temperature of pipe to allow a clearance to combustibles. 
A UL listed 3” or 4” type L pellet vent exhaust system must

be used for installation and attached to the pipe connector 

provided on the back of the stove. Use a 3” to 4” adapter

for 4” pipe. A cap must be used at the termination of type

L vent chimneys. For elevations above 2,500 feet above 

sea level, a 4” L is required.

Termination 

MUST exhaust above air inlet elevation.

It  is  recommended  to  install  at  least  3’  of  vertical  pellet 

vent pipe.  This will create some natural draft to prevent the 

possibility of smoke or odor during appliance shutdown and 

to keep exhaust from causing a nuisance or hazard from

exposing people or shrubs to high temperatures.
The  installation  must  include  a  clean  out  tee  to  enable 

collection of fly ash and to permit periodic cleaning of the

exhaust system.
Total length of horizontal vent must not exceed 10 feet.

The maximum recommended vertical venting height is 18

feet. All joints for pellet vent are required to be fastened 

with at least three screws and all pellet vent connections 

must  be  sealed  according  to  the  vent  manufacturer’s 

recommendations. 
The area where the vent pipe goes through to the exterior

of the home must be sealed with silicone or other means 

to maintain the vapor barrier between the exterior and the

interior of the home.