Hearth & Home Technologies 21M-ACC User Manual

September 1, 2008

7039-131F

Page  1

R

Removing Tube Channel Assembly
1. Remove the right side shield by removing 2 screws in the 

back using a Phillips head screw driver.

2. Remove 4 screws from channel access cover and remove 

cover.

. Locate  2  channel  nuts  inside  of  chamber  and  remove 

using  a  7/16  socket  wrench.    Slide  out  tube  channel 

assembly.

NOTE: Soak the bolts with penetrating oil for at least 15 min-

utes before trying to remove them.

Replacing Tube Channel Assembly
1. Slide one gasket on each tube first
2. Slide the tube channel assembly into side of firebox and 

insert each tube into the corresponding hole in the tube 

channel rack starting with the back hole first.

. Make  sure  tube  channel  assembly  is  flush  against  the 

side of the stove and secure with channel nuts.

4.  Re-install channel cover and side shield.

Tube Channel Rack

Channel

Access

Cover

Channel Cover 

Screws (4)

Channel

Nuts (2)

Tube Channel 

Assembly

Side Panel

Remove

2 Screws

Slide one gasket 

over each tube

NOTE:  Service Space
In order to replace the tube channel assembly a clear-

ance of 17 inches (42mm) is required on the right side 

of stove in order to remove the tubes with the stove in 

place.  
If space is not available, the stove will have to be dis-

connected  from  the  chimney  to  proceed  with  the  tube 

replacement.