HearthStone Tudor 8120, Owner'S Manual

Hearthstone Quality Home Heating Products, Inc.

Tudor Model #8120 

V

ENTING 

I

NFORMATION

V

ENT 

C

ONNECTION

1.  An insulation blanket is provided and must be 

added to any wall pass through (thimble) kit. 
This blanket is installed inside the wall pass 
through the thimble and wraps around the pipe 
that protrudes through the wall. (

see figure 5) 

The blanket must extend the full-length, front to 
back, of the thimble.

2.  The Tudor Direct Vent is approved for 

installation only with the vent connecting 
components listed; Simpson Dura-Vent Direct 
Vent GS, AmeriVent Direct, Selkirk Direct 
Temp™ or Secure Vent systems. Use the 
following instructions along with the pipe 
manufacturer’s instructions to complete the 
installation. 

3.  Install the vent system according to the 

manufacturer’s instructions. 

Figure 5:  Wall thimble with insulation blanket

R

ESTRICTION 

P

LATE

There is a vent restriction plate that regulates the 
flow rate of exhaust gases.  This ensures proper 
flame characteristics and efficiency for the wide 
variety of vent configurations available.  Controlling 
the draft also changes the aesthetics of the flame.  
The restriction plate consists of a rotating shutter 
behind the starter section of pipe and an adjustment 
plate with an index hole used to hold the shutter in a 
fixed position.  The restriction plate has unlimited 
settings.  Depending on the vent configuration, you 
may be required to adjust the restriction plate 
position. 

For horizontal, direct rear vent 

installations no adjustment to the restrictor is 
necessary. 

R

ESTRICTION 

P

LATE 

A

DJUSTMENT 

Ensure the unit is cool before touching any part of 
the firebox.  To adjust your restrictor for maximum 
flame appearance, loosen the Phillips head screw, 
found on the upper rear right side of the stove.  Spin 
the indicator tab into the desired position.  Rotating 
counterclockwise closes the exhaust gasses, while 
rotating clockwise opens the exhaust gases.  Once 
the desired restriction is reached, tighten the screw 

(Refer to figure 6). 

There are unlimited positions for 

the restriction plate, one (1) being the lowest and 
three (3) being the highest.  (Refer to Venting 
Configuration – Figure 6 for recommended 
restriction plate positions)  

Insulation 

blanket 

Note:

 These positions are based on lab results and 

can have some variance. 

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