American Energy Systems Ovation - Manual (Page 29)

Version 7.1 29
i. Use the formulas provided in STEP 2a to convert values not expressed
as “R.”
ii. For multiple layers of material, add each R-value of each layer to
determine the materials overall R-Value.
c. If the overall R-value of the alternate material is greater than the R-value tested
material defined in STEP 1, then the alternate floor protection is acceptable.
d. EXAMPLE:
i. The tested material was ¾-inch thick with a k-factor of 0.84.
ii. The R-value of the tested material was R = (1/0.84) x 3/4 = 0.893.
iii. The proposed alternative floor protector is 4-inch brick material with a
C-factor of 1.25 over 1/8-inch mineral board with k-factor of .29.
iv. The 4-inch brick material has a value of R
brick
= (1/1.25) = 0.80.
v. The mineral board has a value of R
mnbrd
= 1/0.29 x 0.125 = 0.431
vi. Total R
brick
+ R
mnbrd
= 0.80 + 0.431 = 1.231.
vii. Since the total R-value of the alternate example floor protector
(R=1.231) is greater than the tested example floor protector (R=0.893),
the alternate is acceptable.
3. Listed Floor Protector Definitions:
a. Thermal Conductance = C = Btu/(hr)(ft 2 )( O F) = W/(m 2 )( O K)
b. Thermal Conductivity = k = (Btu)(inch)/(hr)(ft 2 )( O F) = W/(m)( O K) =
Btu/(hr)(ft)( O F)
c. Thermal Resistance = R = (ft 2 )(hr)( O F)/Btu = (m 2 )( O K)/W
4. Install in accordance with 24 CFR, Part 3280 (HUD).
5. WARNING: Ovation stoves must always be placed on a listed floor protector if the
existing floor where the stove is to be placed is made of any combustible material. IF
THE AREA WHERE THE STOVE IS TO BE PLACED IS CARPETED, THE
CARPET MUST BE REMOVED. A LISTED FLOOR PROTECTOR IS NEVER TO
BE PLACED ON CARPET. CHECK LOCAL CODES FOR ADDITIONAL
CARPET RESTRICTIONS AND FLOOR PROTECTION REQUIREMENTS.
THIMBLE INSTALLATION
Ovation Stove installations that require a connection from the stove through a combustible wall to a
masonry chimney require either a UL Listed thimble (wall penetration assemblies) or the methods
outlined in the National Fire Association Standard 211, which is outlined below. It is important that the
homeowner or installer be well versed in these variations and understands which one is best suited for
their application. The following diagrams provide examples and explanations of chimney connector
systems and clearances from combustible walls for residential heating appliances. During any
installation, it is important to consult with the local code authority or an installation professional to
ensure your installation is properly done. The following additional requirements will apply to
FIGURES 14 through 17:
1. Insulation material used as part of wall pass-through systems shall be of noncombustible material
and shall have a thermal conductivity of 1.0 Btu-in./hr-ft 2 - 0 F (4.88 kg-cal/hr-m 2 - 0 C) or less.