Johnson J9900 Question - how much wood?

[zmad5306]

I just bought a house with a Johnson J9900 wood/coal furnace. It says on the warning label to not load above the loading door. I assume it means the top of the door? How much wood do you load into your J9900? I have been taking it easy but this cold snap has me up in the night to stoke the fire. Want to confirm what's safe. To clarify I am burning wood not coal.

 

[A.S.Woodchucker]

I have the same furnace. I dont load quite to the smoke shelf inside. Heating 1900sf 1.5 story I can get 8 hr burns with good seasoned hardwoods. As far as a manual goes good luck. They are really close to the box store $1000 wood furnaces. My dad had a vagelzang that was almost identical. So if you are wanting a manual look up one for those furnaces. I dont use the spring dampener on the front and blocked off the inducer motor on the back because it was just too warm in the house. 82°+, I run the dial on the ash drawer about 2 spins out most of the time.

 

[zmad5306]

I actually found the manual online for $9 at Stove Parts Plus. Sounds like you run it about like I do, no inducer fan and a couple of turns out on the ash drawer intake.

I have definitely been not loading it as full as you are, I'll try a bigger load tonight and see how it goes. Thanks for the info.

 

[A.S.Woodchucker]

No problem. I'd like to update and get something more efficient but when I get 8 to 10 hrs on a burn I think I'll run it a few more years. I paid $400 for it in 2010 and have only had to replace door gaskets and the fan motors once. I keep a spare set of motors to have on hand just in case they go bad. Pretty cheap heating. Good luck with it.

 

[Coltrain4life]

Where are you able to find the blower motor at? Mine only has one for the heat. Do I need another one for my cold air return?