Lennox Hearth Products EARTHSTOVE 1400HT, Installation And Operation Manual

MAINTENANCE 

PAGE 16 

DOOR AND GLASS GASKETS

A 3/4" (19 mm) spun fiberglass rope gasket provides the 

seal around the fuel door and a 1/8” x 1” (3 mm x 25.4 

mm) flat woven gasket glass provides the seal around the 

glass. Should these gaskets become frayed or damaged 

they should be replaced with the same size and type as 

the original gasket.  Contact your dealer for ordering. Use 

high temperature silicone sealer as an adhesive for the 

door gasket. The glass gasket has a self-adhesive back-

ing (see 

Replacement Parts, 

pages 19-20). 

WARNING: THE GASKETS MUST BE KEPT IN GOOD 

CONDITION. DO NOT LEAVE THE STOVE BURNING 

WITH THE DOOR  OPEN OR AJAR. THIS WILL 

CAUSE EXCESSIVE HEAT BUILD UP IN THE UNIT 

AND COULD IGNITE SURROUNDING COMBUSTI-

BLES AS WELL AS DAMAGE THE STOVE BY OVER-

FIRING IT. OVERFIRING IS A CONDITION WHERE 

EXCESSIVE TEMPERATURES ARE REACHED, BE-

YOND THE DESIGN CAPABILITIES OF THE STOVE 

(SUCH DAMAGE IS NOT COVERED BY THE MANU-

FACTURER’S WARRANTY). 
 
SERVICING GLASS 

CAUTION:

BE CAREFUL NOT TO ABUSE DOOR AS-

SEMBLY BY STRIKING OR SLAMMING IT.  IF THE DOOR 
ASSEMBLY OR GLASS IS BROKEN OR DAMAGED, 
THEY MUST BE REPLACED BEFORE HEATER CAN BE 
SAFELY OPERATED. USE ONLY COMPONENTS PRO-
VIDED BY THE MANUFACTURER AS REPLACEMENT 
PARTS. 

Cleaning Glass: 

Ensure stove is cold prior to cleaning glass. A 

commercial glass cleaner designed for stoves is recom-
mended. Do not use abrasive cleaners.  

Replacing Glass:  

1.  Remove door from stove by lifting door up and off hinge 

pins: Place the door on a flat protected (towel) clean flat 
surface with the inside of the door facing up. Remove 
the glass clips (by removing screws holding clips), then 
carefully remove broken glass one piece at a time (pro-
tective gloves are recommended). 

2.  Clean the area where the glass with gasket will be in-

stalled. 

3.  Install new glass with gasket (use only factory 5 mm 

glass with glass channel gasket. Do not substitute). 
Carefully reinstall glass clips. Be very careful not to 
overtighten screws. 

4. Reinstall door. 

 
CREOSOTE FORMATION AND NEED FOR REMOVAL 
What is Creosote -

 When wood is burned slowly, it pro-

duces tar and other organic vapors, which combine with 
expelled moisture to form creosote. The creosote vapors 
condense in the relatively cool chimney flue of a slow-
burning fire. As a result, creosote residue accumulates on 
the flue lining. When ignited this creosote makes an ex-
tremely hot fire. Also, creosote deposits tend to form in 

long runs of venting where gases become too cool prior 
to exhausting. Note: Single wall pipe cools rapidly, there-
fore installations using this type of flue are more suscep-
tible to creosote deposits. 

To inhibit the build up of creosote, adjust the primary air 
control to a medium-high or high setting for a 10-minute 
period each day.  Do not attempt to burn out heavy creo-
sote accumulations in this manner.  This must be re-
moved from the chimney by scraping or brushing to re-
duce the risk of a chimney fire. 

Burn Approved Fuel Only

 - This stove is approved for 

burning dry seasoned natural wood only.  Using green or 
inadequately seasoned wood may increase creosote 
buildup. 

Inspection Frequency -

 The chimney connector and 

chimney should be inspected at least twice monthly dur-
ing the heating season to determine if a creosote buildup 
has occurred. If creosote has accumulated it should be 
removed to reduce the risk of a chimney fire. 

Cleaning -

 Remove the brick baffle in the firebox prior to 

having your chimney cleaned (should be done by a quali-
fied chimney sweep). See 

Installing the Baffle Brick

 on 

page 7 and reverse steps to remove baffle brick). 

In the event of a chimney fire - 

Make sure the fuel door 

is securely closed. Adjust the primary air control to the 
lowest (most closed) setting.  Call the fire department 
immediately. After a chimney fire, the complete chimney 
system should be checked by a qualified technician be-
fore further use. 

Consult your dealer for suggestions on proper chimney 
care. Contact your local municipal or provincial fire au-
thority for information on how to handle a chimney fire. 
Have a clearly understood plan for handling a chimney 
fire. 

 
FIREBRICK

The firebrick should be inspected periodically and re-
placed if damaged (crumbling or excessively cracked).

 
REINSTALL BAFFLE BRICK

After your chimney has been swept, reinstall the brick 
baffle (see 

Installing the Baffle Brick 

on page 7). 

CLEANING BLOWER INTAKE 

If an optional blower kit (catalog #14M22) is installed, the 
blower air intake requires cleaning at least once a year to 
remove lint, dust, etc. If there are pets in the dwelling, the 
intake should be cleaned at least twice a year.