Our office manager has an old stove she is relocating. Standard double door, flat top, 6" flue, free-standing old stove. I do not remember how to calculate the required R-value and clearances required for the old stoves. I could use some guidance to help her out. Thanks, JB
What make/model is it? There should be an ID/specs tag on it that has all the requirements...if not, they can usually be looked up by model.
It's tough to read the pictures she sent, but it looks like- Kingsman Industries, manitoba, It's got clearance to combustible marks but I can't read them on my phone. Kingsman cabin stove- WH- J59933 ? Not sure on that. edit- Monster clearance requirements- Sides and back- 36", corner 25-1/2", hearth says min. 3/8 asbestos mill board. What can she do to get her through the season, then replace it next year?
Kinda what I figured...I think you can get a 50% reduction in CTC by putting up an air cooled non combustible heatshield on the wall...usually metal and mounted with non comb. spacers 1" off the wall and 1" up off the floor...obviously you can't use asbestos board for the hearth, but there is a board made for this that can be had at bLowes or HD (the name escapes me right now)
I told her we'd build a 4" pedestal base (steel) to set the stove on, and she is ok with wall mounted heat shields. I just hope a 50% reduction would work- she barely has that now.
NASD - Wood Stove Installation and Operation. CAN RADIATING-TYPE WOOD STOVES EVER BE INSTALLED LESS THAN 36 INCHES FROM COMBUSTIBLES? Yes. If a UL-listed stove has a heat shield attached, the clearance can be reduced as specified. Or build a heat shield to be mounted 1 inch off the wall on non-combustible spacers. To reduce the standard clearance to 12 inches, the heat shield should be of 28-gauge sheet metal, mounted off the floor to provide unrestricted circulation of air between shield and wall (see Figure 1).
