Hearth and Home Technologies 4100I-NL-B Indoor Fireplace User Manual


 
Page 7
September 1, 2008
4100-I ACT WOOD INSERT
250-7201E
R
IF INSTALLING THIS MODEL TO A MASONRY CHIMNEY,
ALWAYS BE SURE THE CHIMNEY IS IN GOOD CONDITION
AND THAT IT MEETS THE MINIMUM STANDARDS OF THE
    
STANDARD 211. A FACTORY BUILT CHIMNEY MUST BE

mm-
ETER CHIMNEY CONNECTOR AS THE FLUE COLLAR ON
THE UNIT. CHANGING THE DIAMETER OF THE CHIMNEY
CAN AFFECT DRAFT AND CAUSE POOR PERFOR-
MANCE. IT IS NOT RECOMMENDED TO USE OFFSETS
OR ELBOWS AT ALTITUDES ABOVE 4000 FEET ABOVE
SEA LEVEL OR WHEN THERE ARE OTHER FACTORS

CAUTION: THIS APPLIANCE IS HOT WHILE IN OPERA-
TION AND MAY REMAIN SO UP TO 40 MINUTES OR
LONGER AFTER THERE IS NO FUEL IN THE FIREBOX.
IF THIS APPLIANCE IS IN A HIGH TRAFFIC AREA OR
CHILDREN MAY BE NEAR, IT IS RECOMMENDED THAT
YOU PURCHASE A DECORATIVE BARRIER TO GO IN
FRONT OF THE APPLIANCE.
CALCULATING ALTERNATE FLOOR
PROTECTION MATERIAL
Thermal Conductivity: k value
The k value indicates the amount of heat (in BTU’s) that will ow
in 1 hour through 1 square foot of a uniform material 1 inch thick
for each degree (F) of temperature difference from one side of
the material to the other. The LOWER the k factor means less
heat is being conducted through the non-combustible material to
the combustible material beneath it. The k value of a material
must be equal or smaller then the required k value to be accept-
able.
(BTU) (inch)
(foot
2
(hour) (
o
F)
Thermal Resistance: R value
The R value is a measure of a material’s resisteance to heat
transfer. R value is convenient when more than one material is
used since you can add the R values together, whereas you can
not do this for k value. The HIGHER the R factor means less
heat is being conducted through the non-combustible material to
the combustible material beneath it. The R value of a material
must be equal or larger then the required R value to be accept-
able.

Divide 1 by k and multiply the results times the thickness in inch-
es of the material.
R = 1/k x inches of thickness

Divide the inches of thickness by R.
k = inches of thickness/R
Calculations:
Example: Floor protection requires k value of 0.84 and /4 inch
thick.
Alternative material has a k value of 0.6 and is /4 inch thick.
Divide 0.6 by .75 = k value of 0.80. This k value is smaller than
0.84 and therefore is acceptable.
GENERAL INSTALLATION PROCEDURE
DO NOT CONNECT THIS UNIT TO A CHIMNEY
FLUE SERVING ANOTHER APPLIANCE.
Install liner, if required, for your chosen installation.
Attach metal warning plate to the back of the replace
with screws or nails.
Set appliance on the hearth (See Hearth Requirements
and Support Kit information on 
)
Complete the vent connection required for your instal-
lation type.
Relocate plate for Outside Air. (Required for Mobile
Home Installation)  ; Assemble Panel Set
and Cast Trim Set or the Basic Panel & Trim Set and
install as one piece. 
Position unit into replace leaving width enough for ber-
glass batting to be inserted around face seal.
Work unit securely into the replace using sheet metal
shims if leveling bolts are needed. 

Remove all labels from glass prior to building rst re.
Ensure that plated surfaces are cleaned prior to build-
ing rst re. .
Read Operation Instructions found on 
