Quadra-Fire Isle Royale Calculating Alternate Floor Protection, Material, Reversible Flue Collar

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Isle Royale Wood Stove

Calculating Alternate Floor Protection

Material

Thermal Conductivity: k value

The k value indicates the amount of heat (in BTU’s) that will flow 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 mate- rial must be equal or smaller then the required k value to be acceptable.

(BTU) (inch) (foot2 (hour) (oF)

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 acceptable.

Converting k to R:

Divide 1 by k and multiply the results times the thickness in inches of the material.

R = 1/k x inches of thickness

Converting R to k:

Divide the inches of thickness by R. k = inches of thickness/R

Calculatons:

Example: Floor protection requires k value of 0.84 and 3/4 inch thick.

Alternative material has a k value of 0.6 and is 3/4 inch thick.

Divide 0.6 by .75 = k value of 0.80. This k value is smaller than 0.84 and therefore is acceptable.

REVERSIBLE FLUE COLLAR

The flue collar is reversible for either a top or rear venting installation. The unit is shipped with the flue collar in the top vent position.

CONVERTING COLLAR FOR REAR VENT INSTALLATION

1.Remove 5 Phillips head screws from the rear shield, lift shield up and set aside.

2.Remove bolts from each side of the flue transition (2 total). (Place your free hand in flue opening to locate and retrieve nuts attached to bolts.)

3.Turn vent to horizontal position. Inspect sealant to ensure a leak free application.

4.Re-assemble in reverse order.

REAR FLUE DEFLECTOR COVER PLATE

This cover plate is used when the flue collar is turned for a rear vent application.

Please note this cover plate will not

work with the Low-Profile Kit

Mounting Screws

1.After the flue collar has been reversed for a rear vent installation, install the cover plate on the stove with the two screws provided.

Bend Flange Down

2.Bend the cover plate flange down.

3.Secure the cover plate with the remaining two screws.

Page 8 250-5763B February 4, 2005