Steel King furnace

[CrappieKeith]

Our patented process was designed to bring in 80% of the air from below the grates and the super heated air...20% above the grates into the smoke.If the air above does not get over 1100 degrees the smoke will not burn.
It's a process that will take some expeirimentation. As Layne pointed out the box is of good size. You'll need to get the air added to the right amount plus get it to the right temp.

 

[Diesel nut]

I guess I'll just have to keep experimenting with it. I think I'm going to try to reduce the size of my burner tubes and see what that does. I appreciate any info and the pics are always good. I still need to get some pics on here. It's kind of a pain.

 

[hautions11]

Furnace

Love the project. I have a Royal furnace, similar vintage. Same round top. I have wanted to add secondary burn forever. Nothing really to add except the factory set-ups I have seen are real thin walled stainless, I assume to heat up faster. Was the idea with glass just temporary? Keep going!

 

[Diesel nut]

I'm thinking of tying my wood furnace into my propane boiler system. If I used some copper tubing to go around the fire box would this work? Anyone know if this has been done before? I've looked on here for a while but no luck.

 

[homemade]

Even thought copper tubing would be a likely choice. the solder wont hold up to the heat developed around the fire box. I get on average 150-175 degrees 3 feet after the furnace on the duct work. The draft fan cut-out switch reaches 200 just to turn the draft fan off. I could see 300+ in the fire box. Perhaps black iron piping or stainless. Dont go with galvinized either. The zinc will get hot and melt off eventually and rust away faster. Black iron is annoidized on and not hot diped like galvinized. Stainless is best. We use it for all our steam pipes at work. You wont be able to use pipe dope either it melts off. Teflon tape or welding the seams.

happy building.

 

[Diesel nut]

Well I've been running this furnace for a little over a month and the secondary system I put in doesn't work for crap so I just run the thing like it was originally intended. It will run about 8-10 hours on a load no matter what the temp is outside. It keeps the house anywhere from 66-78 depending on if we're home or not. I'm guessing I've burned about 1.5 cords of nothing but oak. So I'm fairly happy with this thing considering it was free and it's an older machine. I've burned hardly any propane other than for the water heater and oven. Maybe someday I'll buy a better furnace thats more efficient than this one. But for now this one works.

 

[pook]

Well I've been running this furnace for a little over a month and the secondary system I put in doesn't work for crap so I just run the thing like it was originally intended. It will run about 8-10 hours on a load no matter what the temp is outside. It keeps the house anywhere from 66-78 depending on if we're home or not. I'm guessing I've burned about 1.5 cords of nothing but oak. So I'm fairly happy with this thing considering it was free and it's an older machine. I've burned hardly any propane other than for the water heater and oven. Maybe someday I'll buy a better furnace thats more efficient than this one. But for now this one works.

are the 2ndaries open when u "run it like normal"? Try this= get the 2ndaries firing & when they go out, observe the smoke @ the top of the chimni then go back & block the 2ndaries & recheck smoke @ the top of the chimni. It may take time? to see results from these 2 different settings & monitoring temp of the fluegas would help 4fun data.
Even though the pipes aint flaming, the incoming air is still traveling to the hottest point within the stove, typically the coals. My EPA stove has the primary air intake/airwash for the glass located right where the firebox exhausts into the chimni & though this air is preheated & more apt to rise, the air still dives down to get at the hot coals.
Some EPA stoves insulate above the baffle over the 2ndaries so to create a hotter zone on top & prompt the load to burn from the top down which is more efficient. Burning method 4 EPA stove is different from non-EPA
Lotta factors @ play & if u want pm me ur fone# + read my blog?