A few pictures of our boiler systems.

8 hrs on a single charge of wood, your Froling must cycle on and off as heat is needed.Excuse my ignorance but I didn't think gassers liked that much idle time. Does it smoke during idle.I know mine smokes a bit till the flue reaches 350f and runs between 350-450 usually run it 3 to 4 hrs with two full charges of wood.

Well, it's not the most efficient way to run them but they will do it. There's a bunch of guys on here that run their gassers with out storage, that means your going to to idle.

Even with storage I get some idling on mine as the return water gets closer to the supply temp (ie the tank is getting getting close to the supply temp). With mine the fan shuts off for a couple of minutes, once the temps come back down the fan kicks back on and things get rolling. While it's idling I do get just a hint of smoke from the chimney.

It gets back to gasification pretty quick, there's always a nice bed of coals.

K

No. I have been avoiding slumbering the Froling by timing and limiting how much fuel I put in. On a coal bed with the boiler hot I can only put in three or so splits for three hours to avoid overfeeding and slumbering. It slumbers on high temps and goes off for fuel load burnout, excess O2 > 19%. When empty I can only load 1/2 to 1/3 with fuel, on softwood.

It was one piece of wood, a big white oak solid knot that was cut and outside one year. I put that in to burn slower and some softwood to make a fire. The oak chunk went out twice, burnt out the softwood, and the Froling went off, not slumbering. The tree piece was slow roasted and burned, that's the first picture of wood that had gone out.

Very nice job Dan. That Froling must be sweet! Thanks for sharing your pics of your system.

A fun evening at work, check out page 6 of this thread for some background info.....

It's actually quite funny that it only took me 13.5 years to do this, LOL.

Boiler 2 was taken down yesterday for a scheduled mid run water wash, the heat transfer tubing gets pressure washed at 10,000 psi.

After burning 1350 gallons of propane heating up for 4 hours, we drop trash into the furnace. That black square in the back is about 4-5 feet high and 14 feet wide. The furnace is actually 16 feet wide.

The blob on the right wall is a clinker, essentially a "moon rock" of melted and re-solidified ash with lots of metallic debris embedded in it. When they get too heavy to hang on to the wall they "shed" and come through the fuel bed like a snow plow.

That thing that rolls down near the viewport is a plastic lid for a 55 gal drum.

http://s23.beta.photobucket.com/user/Mustash29/media/Misc/MOV00221_zps72f22a06.mp4.html

Dry trash sitting in an 800 degree "oven" only takes about 10 minutes to spontaneously combust. The flicker you see is from the gas burner flames, which are 20 feet above the fuel bed.

From camp fire to fully engulfed took just over one minute. From here on, the burners are shut off and the fire is self sustaining as long as you keep shoving more fuel in.

When we stop feeding, it takes about one hour to burn up what is sitting on the grates and what is left in the feed chute.

http://s23.beta.photobucket.com/user/Mustash29/media/Misc/MOV00222_zps4687fa7a.mp4.html

Very cool mustash29. Thanks for sharing all of it. Do those clinkers do any damage to the burn chamber? Do they burn up or is there a process to take them out?