Jotul Research Burn...

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Dexter

Member
Aug 9, 2007
208
Boulder County, CO
That was an interesting thread on Jotul temps.

I have one of the early Firlight CBs (F600, but I think mine was marketed under a different number.) I use a few different fire styles, but was interested in graphing a typical "burn for maximum warm-up of house" If I can figure out how to pdf-a-fy the graph, I'll post it. As a synopsis:

Ambient conditions: 10 degrees outside, stove/house temp 64. Wood: Seasoned Lodge Pole Pine, large, medium, and small splits, to absolutely pack the firebox. (North/South loading) Useable Heat: arbitrarily defined as 200 degrees. Objective: determine length of heat cycle. 'Meaured temp every 10 minutes.

Notes: cheap "Home Saver" thermometer set at right rear of stove. The elevated oval on the center-top of the stove got WAY TOO HOT to touch before the thermometer registered 85! I guess the whole heat measurement is, therefore, pretty subjective.

Long and short of it: Very steep climb with top temp registering 550 at about 1 hour, air cut to under 1/2, and cruised 475-500. Dropped to 200 degrees at almost exactly 5 hours after lighting. (I can get easy overnighters, but with lower max temps and air setting.)

Detailed description to follow.

Dexter
 
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