Hearth Protection for new Jotul F602

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New Member
Jan 25, 2021
Hi folks, I'm looking through the Jotul documentation for my new F602 v2 and want to make sure I'm reading the hearth protection right.

It says under 'hearth protection': "Either of the following forms constitutes approved hearth protection: any UL, ULC or Warnock-Hersey listed hearth board. • any noncombustible material with installation of the included Bottom Heat Shield. The floor protection must have a minimum R value of 0.45."

My question from reading that: The bottom heat shield is installed, so do I have to install a hearth pad that has a minimum R value of 0.45? Or will any non-combustible material suffice? I'm considering putting copper sheet metal under the stove.



Staff member
Nov 18, 2005
South Puget Sound, WA
It's poorly written but the implication is that the hearth needs an R=.45 rating or higher.


Minister of Fire
Dec 28, 2006
Mt. Rainier Foothills, WA
It’s too bad some manufacturers haven’t gotten with the program to require just ember protection. This R requirement is a sign of poor engineering and/or poor design priorities.
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New Member
Jan 25, 2021
Thanks, folks. Yes, for sure no one wants the floor to be at risk, but would be great not to have to wrestle with another set of clearances.