INSTALLATION
FRAMING DETAILS
Note: The “Z” type safety strip is not supplied by Regency and must be fabricated locally.
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| 2 x 6 Stud |
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| Wall with a | FireStop | |
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| Fire Stop |
| 2 x 4 Header | ||
| Straightrun |
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| 10" |
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| for 8"(203mm) |
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| (254mm) |
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| Hot Air Duct |
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| 2 x 4 |
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INSTALLATION | Stud Wall |
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Unit projects |
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| 84" |
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out flush with |
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material |
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(1289mm) | 3/4" (1416mm) 5/8" (1083mm) |
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5"(127mm) | 2 x 4 Framing |
| 2 x 6 Framing |
wide sheet |
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metal strip under |
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unit and hearth |
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LOCATION OF |
| HEARTH EXTENSION | |
FIREPLACE |
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FINISHING MATERIAL |
1/2"(13mm) THICK |
HEARTH EXTENTION |
(64mm) |
(64mm)
Diagram 1
How To Determine
If Alternate Floor
Protection Materials Are
Acceptable
The specifi ed fl oor protector should be 1/2” (13mm) thick material with a
The proposed alternative is 4” (102mm) brick with a
1)Carefully select the proper location for heat circulation,aesthetics,chimneyobstructions and clearance to side wall(s). With proper
2)Carefullyconsiderthepositionofthefireplace opening with respect to the location of adjacent or nearby stairwells, bath or kitchen exhaust fans and/or return air registers for forced air furnaces/air conditioners that could cause a smoking fi replace condition if the house is tightly insulated.
3)Fireplace must be anchored to the framing to prevent movement or rocking; use the nailing strips which have been supplied. The nailing strips are installed to the side of the unit and to the front side of the 2 x 4 or 2 x 6.
NOTE: Hearth must have 1/2" (13mm) Millboard under fi nish material with minimum "k" factor of 20.07. When unit is raised 4" (102mm), the thermal fl oor protection is not required. If you plan to raise the fi replace and hearth extension, build the platform assembly then position
fireplace and hearth extension on top. If you are not raising the unit, check that you will have suffi cient clearance under the bottom louver for your finishing material on top of the hearth extension, i.e. tiles, concrete board, etc.
1)Insert the metal safety strip, packaged with the fireplace beneath the fi replace as illustrated in Diagram 1 below. The safety strip should be tacked down to prevent possible shifting and should overlap for continual coverage of the fl oor.
Note: Asafety strip is not required when the fireplace rests on a
Note: Install the hearth extension only as illustrated.
The safety strip should extend 2 in. (51 mm) in front and on the sides of the fireplace. In the event a wooden support is used to elevate the fireplace above the fl oor, a “Z” type safety strip should be fabricated from 20 gauge galvanized sheet steel and used to protect the front surface of the wood support as well as the fl oor beneath the hearth extension.
Step (a): Use formula above to convert specifi cation 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 specifi ed 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
10 | FPI FP90 Wood Fireplace |