United States Stove Company DR6 - Manual (Page 4)

4 CAC
FIGURE 5 - FLOOR PROTECTION
FLOOR PROTECTION
This heater has been designed to prevent excessive temperatures on the floor beneath the heater. It is important, however, that
a combustible floor be protected by a 3/8 inch minimum thick noncombustible inorganic millboard having a
thermal conductivity of K=0.43 BTU/ft.
2 /in./hr./°F or a listed floor protector beneath the heater extending beyond the heater as
shown by figure 5. The floor covering is required to prevent damage or possible ignition from sparks or glowing embers that
might escape the heater during refueling or ash removal or drop from the joints of the chimney connector.
CHIMNEY CONNECTOR AND CHIMNEYS
It is very important to assure safe and satisfactory performance
from your heater that it be properly connected to a correctly
constructed and maintained chimney. If a Listed High Temperature
Type HT Factory-Built Residential and Building Heating Appliance
Chimney is used, follow the chimney manufacturer’s installation
instructions carefully. If a masonry chimney is to be used, be sure
it is constructed to the National Fire Protection Association
(N.F.P.A) and local code standards. A copy of the N.F.P.A 211
Chimney, Fireplaces, Vents and solid Fuel Burning Appliances
may be obtained from N.F.P.A., Inc. Batterymarch Park, Quincy,
MA 02269.
T he Chimney connector (pipe from heater to chimney) must be
6 inches in diameter and made from 24 gauge or heavier steel.
The length of the chimney connector and number of elbows used
should be kept to a minimum. Moisture that might collect in the
chimney should be directed to the heater by providing a slope of
1/4 inch per foot in a horizontal run of the chimney connector and
installing all pipes with the crimped end toward the heater, (See
figure 6). The chimney connector should extend at least two
inches into the flue of a factory-built chimney. When making a
horizontal connection to a masonry chimney, the connector should
extend to the inside face of the vertical flue liner, (see figures 7 and 8). When connecting the heater to a masonry fireplace, the
chimney connector should extend into the chimney’s liner as shown by the side section view of figure 4. All chimney connector
joints should be sealed with furnace cement and secured with No. 8 sheet metal screws as described by the TO SAFELY AND
PROPERLY INSTALL THIS HEATER section of this manual.
DO NO USE MORE THAN TWO 90 DEGREE ELBOWS IN THE Chimney CONNECTOR. Installations which require two degree
elbows must be vented into a flue of at least 8” diameter or 8” square to prevent chimney draft restrictions, (see figure 2).
DO NOT PASS A CHIMNEY CONNECTOR THROUGH A FLOOR OR CEILING OF ANY KIND. Only Listed Factory-Built Residen-
tial Type and Building Heating Appliance Chimneys or masonry chimneys constructed to N.F.P.A. standards should pass through
a floor or ceiling.
PIPE ANGLE UP
HORIZONTAL
TO HEATER
FIGURE 6 - RISE OF HORIZONTAL
CHIMNEY CONNECTOR PIPE
TO CHIMNEY
RISE:
1/4" FOR EACH FOOT
OF CONNECTOR
LENGTH