Ok my thread I started this morning some how disappeared so I will repost what I can from the desktop. Most of the pics are on my phone or other computer. Yesterday was the first fire up of the season for us here in north central Indiana.Calling for cold temps on Halloween with a chance of snow!So we decided to fire her up to take off the chill.Had been running an electric space heater just to take chill off when it got chilly in the house.I guess winter is finally starting to try and set in now Well I made a quick video of her running after about 30 minutes of lighting her up.I actually made 2 as my phone ran out of memory.Too many pics and videos on my Note 3 Make a note I did plug the forum in the start of my video Anyways here is the first video And here is the second video
Here is a video of the inside of the air box to give you and idea of how the air is sealed off from the blower. This was during the fabrication of the boiler.
Here is another video of explanation of my controls operating when the boiler build was finishing up.
Here is a few pics of the wood chamber.The first photo shows the tube that supplies air to the fire box.Then the other tube that goes to the floor supplies combustion air to the secondary burn chamber. The large hole in the roof goes to the bypass chamber were the door is to close the smoke travel path to the exhaust stack. The second pic is of the floor and the 4 slots to the lower refractory tunnels were the secondary burn takes place. I get burn temperature around 1300° most of the time.which is recorder by K type thermocouple in the path of the burn gas chamber.
First picture is of all the wood chamber and the outer water tank metal all cut and bent.Did this all at work . Everything was was cut and bent by my print I made fir each piece. Then in the next pic you can see the burn chamber and lower gasification chamber tacked and welded together
Here are some more assembly pics.you can see the six 3" heat exchanger tubed in the rear of the stove coming up from the lower gasification chamber. They are enclosed by the plate going up the back with the return water piping
Water tank starting to go around the burn chamber. back wall installed with the out feed piping on the bottom and the return lines up top.Center line in the bottom is a drain line. 3rd pic is of the Chromalox controller that controls the boiler.This is the same type of controller used to run heat treating furnaces in Industry.
Picked up a skid of hard brick.I think it was 90 some pieces and a tub of mortar.Got these from the same supplier we get our brick from for our Carborizing furnaces at work when we rebuild them. Started the fabrication of the doors in the second pic.They are both 1/4" and have a 1 " rope seal slot.the door has a chamber that is 2 " tall which contains K-wool to insulate it. refractory all installed in the lower chamber.you can see the injection air feed hole in the center back.Then two of the ports on either side were the wood gas is forced down through into the first lower tunnel level
Here we see the installation of my panel box which contains my controllers and my relays. lots of detail work started to happen at this stage.
very nice jackel! musta been a fun build. safety devices are well thought out. how much wood are you going through per season and what area are you heating? what thermocouple did you use for the secondary chamber? your shop looks like mine: too many projects going on plus all the kids toys in the mix!
Im heating a 26×60 double wide and sometimes I turn on heat in my shop.which is an old fork truck radiator with a squirrel cage blower attached to hanging from the ceiling. I figure I go through 10 cord a winter but I've never really kept track.I had hoped to get a better record this year but we started burning and I didn't mark off what I had to start with. I'm using a K type thermocouple inside a steel tube which projects into the secondary burn chamber tunnel.I use the same type thermocouple on the top of the water tank to control the boiler. yes there are too many projects in that shop.Now there are others in there as these Pictures are back from 2010 when I built it. thanks for the compliment s and it was a fun build.i could build them all the time but unfortunately no one could afford them after I figured in my labor
Yes the secondary burn chamber is all refractory hard brick.there is 2 levels of tunnels that extract the heat and transfer it to the water tank
Found a shot of the start of the base.The base has fork pockets and has a solid bottom. another pic of the panel box after I cut and installed the controllers. the bottom picture is of the holder for the thermocouple which reads the water temperature in the tank.My thermocouples are about 16" long and I didn't want them moving inside the tank since they are a small diameter. So I made this holder with diffusing holes in it and a sealed top to slide it through and that keeps the tank sealed
I found a few more pictures of the upgrades on the boiler.I had decided to put in another way to actuate the bypass door at the top of the burn chamber.I went with a handle that operated the door by a shaft running through a packing to seal the shaft.The handle is pushed in on the front of the boiler and a spring loaded plate automaticlly latches the handle to hold the door open.When I'm done loading the boiler I just tap the latching lever an it automaticly closes the bypass door. You can see the the six 3"heat exchanger pipes which the exhaust comes through after it passage through the refractory chamber.
