26
Door Gaskets
The rope gasket around the oven door, firedoor, ash pan door
and ash door flap, should be periodically inspected for a good
seal.
If the gasket comes loose but is still usable, it can be reseated
using a good high temperature silicon. Replacement gasketing
and adhesive can be ordered from Heartland or your dealer.
Gasketing is sold by the foot. Refer to the gasket listing below.
SweetHeart:
oven door - 4 ft #6387 rope gasket
fire door - 3 ft #1710 rope gasket
ash door - 3 ft #1710 rope gasket
ash door flap - 2 ft #1710 rope gasket
key plate gasket - 5 ft #1713 rope gasket
Oval:
oven door - 4 ft #6387 rope gasket
fire door - 3 ft #1710 rope gasket
ash door - 4 ft #1710 rope gasket
ash door flap - 2 ft #1710 rope gasket
key plate gasket - 6 ft #1713 rope gasket
Firebox
Periodic cleaning and inspection of the firebox is recommended.
On the SweetHeart and Oval cookstove there is a gasket on
the top under the keyplate. This gasket should be inspected
and replaced if it fails to seal.
Check for condition of side castings (Oval only) and smooth
operation of wood grate.
Some cracking of the firebrick is normal and may be sealed
with stove cement.
The firebrick, grate and cast liners are replaceable parts. You
will prolong the life of these parts by:
1. Following the procedure for break in fires;
2. Avoiding impacting these parts when loading firewood;
3. Burning seasoned firewood.
Formula for Equivalent Hearth Extension
Hearth extension may be fabricated from non-combustible
materials as long as the materials are at least 1/2" thick and
have a thermal conductivitey factor "K" of 0.43 or lower.
Formula: Units of K = btu/ft/h/F/in
Example for determining thickness of equivalent material:
("K" of equivalent material)x 0.5 = thickness required
.043
The thermal conductivity of "K" of equivalent material can
usually be obtained from the manufacturer of the material.
Oven Thermometer Adjustment
The temperature registered by the oven door thermometer
may not necessarily correspond with the reading taken with
the thermometer inside the oven.
For accurate oven
temperatures, refer to the interior oven thermometer.
An adjustment can be made to the oven door thermometer
to allow a more representative temperature reading (most
thermometers are adjusted to provide accurate readings in
the 300F to 400F temperature range). After the
adjustment, the low and high end of the temperature
spectrum will not be accurate. To make temperature
adjustments please follow the instructions below:
1) Begin by removing the screws on the inside oven door
panel. Remove panel.
2) The back of the thermometer is exposed ready for
adjustment.(see figure 11)
3) With fine nose pliers, adjust the “L” bracket of the
thermometer, moving indicator needle to desired position.
4) Replace the oven door panel and screws.
5) Re-test thermometer and adjust again if necessary
Rear view of Thermometer
Figure 11
