INSTALLATION
MASONRY AND FACTORY BUILT FIREPLACE CLEARANCES
The minimum required clearances to combustible materials when installed into a masonry or factory built fireplace are listed below.
| Adjacent | Mantle** | Top | Side | Minimum | Minimum | Minimum |
Unit | Side Wall | (to Top) | Facing | Facing | Hearth | Hearth | Hearth Side |
| (to Side) |
| (to Top) | (to Side) | Extension* | Thickness* | Extension |
| A | B | C | D | E | F | G |
Medium Flush |
|
|
|
|
|
|
|
Insert (I2400) | 11"/280mm | 20"/508mm | 12"/305mm | 8"/200mm | 18"/455mm | 0.5"/13mm | 8"/200mm |
|
|
|
|
|
|
|
|
Side and Top facing is a maximum of 1.5" thick. Floor protection must be
*Hearth thickness of 0.5" with k value = 0.84", r value = 0.6 or greater.
**
**Max. mantle depth is 10" (254mm).
Thermal floor protection is not required if the unit is raised 3.5" minimum (measured from the bottom of the stove). However, standard ember floor protec- tion is required. It will need to be a
If the unit is not raised, thermal floor protection required is 18" (450 mm) in the US and Canada.
All floor protection must be
Clearance diagram for Installations
Minimum Hearth Extension for the front
(E)and sides (G) are measured from the fuel door opening.
HOW TO DETERMINE IF ALTERNATE
FLOOR PROTECTION MATERIALS ARE ACCEPTABLE
The specified floor protector should be 3/8" (18mm) thick material with a K - factor of 0.84.
The proposed alternative is 4" (100mm) brick with a
Step (a):
Use formula above to convert specification to
R = 1/k x T = 1/0.84 x .75 = 0.893.
Step (b):
Calculate R of proposed system. 4" brick of C = 1.25, therefore Rbrick = 1/C = 1/1.25 = 0.80
1/8" mineral board of k = 0.29, therefore Rmin.bd. = 1/0.29 x 0.125 = 0.431 Total R = Rbrick + Rmineral board = 0.8 + 0.431 = 1.231.
Step (c):
Compare proposed system R of 1.231 to specified R of 0.893. Since proposed system R is greater than required, the system is acceptable.
DEFINITIONS
Thermal Conductance:
C | = | Btu |
|
| = | W |
|
| (hr)(ft2 )(oF) |
| (m2))(K) | ||
Thermal Conductivity: |
|
|
| |||
k = | (Btu)(inch) | = | W | = | Btu | |
(hr)(ft3)(oF) | (m)(K) | (hr)(ft)(oF) | ||||
Thermal Resistance: |
|
|
| |||
R | = (ft2)(hr)(oF) | = | (m2)(K) | |||
|
| Btu |
|
|
| W |
8 | Regency I2400M |