Yukon Husky Multifuel Furnace

Yukon Husky Multifuel Furnace

PostBy: pjarchers On: Wed Sep 03, 2008 7:35 pm

We have a Yukon Husky furnace that gives us the ability to burn wood, coal or oil. I have been burning wood in it for three years (5-6 cords/year) and now would like to go with coal. I have experimented with coal last year and could not achieve a good coal fire, or lets say I got it going but it would die out and not last the night. I have read some of the posts here and it is pretty much the way I got it going on coal. (Oak fire and introduced coal or the "Match Light" technique. I have an automatic damper that opens if it calls for wood/coal heat and shuts if it calls for oil heat. (it is called a duel fuel thermostat) If you set the therm @ 68 for wood or coal and the oil @ 70 when the therm calls for heat on the wood/coal and does not make, the oil will automatically come on.

I was trying to burn nut coal and have now purchased some rice and pea coal.

Should I start the fire and introduce some rice coal and then add pea, to eventually put the nut coal over it?

Thanks in advance for ANY help!
pjarchers
pjarchers
 
Stove/Furnace Make: Yukon Husky
Stove/Furnace Model: LWO-112

Re: Yukon Husky Multifuel Furnace

PostBy: cArNaGe On: Wed Sep 03, 2008 8:18 pm

I had one in this house when I got it. I took it out because the heat exchangers were cracked in it. My buddy at work has one and he uses nut. For a hand fire unit you should use the nut. Make sure the bed of coal covers the whole bottom of the firebox, No air can go around the coal. Get the bed of coal at least 4-8 inches think. Sounds like you didn't load it up enough. If your successful with the fire you can add the pea or rice to slow the fire down. It is probably to small to get enough air through the coal to burn with out the nut under it.
cArNaGe
 

Re: Yukon Husky Multifuel Furnace

PostBy: LsFarm On: Wed Sep 03, 2008 8:19 pm

Forget the rice coal,, it will just fall through the fire, the grates and end up in the ashpan, unburnt.. Depending on the size of the gaps in your grates, some of the smaller pieces of Pea coal will do the same thing..
That unit should burn nut or nut and stove or maybe nut and pea over the top..

A few questions:
When you burnt coal last year, did the coal burn up completely, or did you have the fire go out, leaving unburnt and partially burnt coal??
How deep of a pile of coal did you have on the fire?? Coal burns from the bottom up, and it likes a DEEP fire.. a 3" deep layer of coal is almost guaranteed to go out.. Did you completely fill the firebox..did the coal fire completely cover the entire firebox, with no openings in the corners or on an end or side? ALL air going through the firebox MUST come up through the coal bed, none can be allowed through a loading door vent and no combustion air can be allowed to get around the fire on the sides or corners..

When you burn wood, do you have any problems getting the fire started, and keeping it burning??

Find someone in your area that has a stoker stove, they burn rice coal, sell them the rice coal,, your stove can't burn rice.. once you have the nut coal burning well, and can keep a fire all night long, then adding some pea size coal over the top of the burning nut coal does for some folks lengthen the burn time, but it also reduces the heat output, unless you increase the air to the fire, then it will burn a shorter time..

Hope this helps.. A photo or two of the firebox and grates/shaker mechanism would be helpfull too.
Greg L.
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

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Re: Yukon Husky Multifuel Furnace

PostBy: cArNaGe On: Wed Sep 03, 2008 8:29 pm

This is the one I had Greg.

Image

Hard to see the actual firebox but you get the idea.

My wifes parents used it for years. I worked good but it like to be loaded with wood @ about 6 hour intervals with wood. I or they never tried coal in it.
cArNaGe
 

Re: Yukon Husky Multifuel Furnace

PostBy: LsFarm On: Wed Sep 03, 2008 8:36 pm

I see provisions for base of the fire air, and over the fire air, is there a way to get ONLY under the fire air through the ashpan door?? I had a buddy with a similar furnace, said it could burn coal.. but it had fixed grates, no shaker and no air feed for under the fire... strictly a woodburner.

Greg L
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Yukon Husky Multifuel Furnace

PostBy: cArNaGe On: Wed Sep 03, 2008 10:07 pm

http://nepacrossroads.com/post19894.html#p19894

Its an older post but this guy successfully did it.

http://nepacrossroads.com/post19791.html#p19791
More pictures of his setup.
cArNaGe
 

Re: Yukon Husky Multifuel Furnace

PostBy: pjarchers On: Thu Sep 04, 2008 6:28 pm

LsFarm wrote:Forget the rice coal,, it will just fall through the fire, the grates and end up in the ashpan, unburnt.. Depending on the size of the gaps in your grates, some of the smaller pieces of Pea coal will do the same thing..
That unit should burn nut or nut and stove or maybe nut and pea over the top..

A few questions:
When you burnt coal last year, did the coal burn up completely, or did you have the fire go out, leaving unburnt and partially burnt coal??
How deep of a pile of coal did you have on the fire?? Coal burns from the bottom up, and it likes a DEEP fire.. a 3" deep layer of coal is almost guaranteed to go out.. Did you completely fill the firebox..did the coal fire completely cover the entire firebox, with no openings in the corners or on an end or side? ALL air going through the firebox MUST come up through the coal bed, none can be allowed through a loading door vent and no combustion air can be allowed to get around the fire on the sides or corners..

When you burn wood, do you have any problems getting the fire started, and keeping it burning??

Find someone in your area that has a stoker stove, they burn rice coal, sell them the rice coal,, your stove can't burn rice.. once you have the nut coal burning well, and can keep a fire all night long, then adding some pea size coal over the top of the burning nut coal does for some folks lengthen the burn time, but it also reduces the heat output, unless you increase the air to the fire, then it will burn a shorter time..

Hope this helps.. A photo or two of the firebox and grates/shaker mechanism would be helpfull too.
Greg L.



Some answers to your questions: The coal did not burn up completely, I had pieces left over after the fire died out. I build a coal sifter made out of wood and hardware cloth to sift the unburnt coal from the ashes. Is this wise to due or not?

The depth of the pile was not as deep as you suggested, I maybe had a 3" bed. And I also did not cover the entire firebox area. There were openings around the fire, I started out with a 1 pound coffee can full and started adding it one can at a time. Allowing 20-30 minites in between can fulls, so as not to smother the burning coals, and I did have openings around the edges where air was able to go around the fire.

When burning wood I had no trouble at all keeping a fire going.
pjarchers
 
Stove/Furnace Make: Yukon Husky
Stove/Furnace Model: LWO-112

Re: Yukon Husky Multifuel Furnace

PostBy: pjarchers On: Thu Sep 04, 2008 6:30 pm

cArNaGe wrote:I had one in this house when I got it. I took it out because the heat exchangers were cracked in it. My buddy at work has one and he uses nut. For a hand fire unit you should use the nut. Make sure the bed of coal covers the whole bottom of the firebox, No air can go around the coal. Get the bed of coal at least 4-8 inches think. Sounds like you didn't load it up enough. If your successful with the fire you can add the pea or rice to slow the fire down. It is probably to small to get enough air through the coal to burn with out the nut under it.


Thanks for your help ,I did have air getting around the burning coal and the bed was only 3" deep
pjarchers
 
Stove/Furnace Make: Yukon Husky
Stove/Furnace Model: LWO-112

Re: Yukon Husky Multifuel Furnace

PostBy: pjarchers On: Thu Sep 04, 2008 6:33 pm

cArNaGe wrote:This is the one I had Greg.

Image

Hard to see the actual firebox but you get the idea.

My wifes parents used it for years. I worked good but it like to be loaded with wood @ about 6 hour intervals with wood. I or they never tried coal in it.


Thats the unit, wood works great, but I am tired of felling, cutting, hauling, splitting, stacking and seasoning. Coal is available in my area and it will be far less work that wood!
pjarchers
 
Stove/Furnace Make: Yukon Husky
Stove/Furnace Model: LWO-112

Re: Yukon Husky Multifuel Furnace

PostBy: farok On: Tue Sep 16, 2008 8:23 pm

I have the smaller one -- the Yukon Eagle. Last year was my first attempt with coal and there were plenty of things I did wrong, here are the key points I'd take from this furnace. I did find out that the deeper the coal bed, the better the burn, just like everyone else is saying, and that you need to have an even bed of coal all the way around the firebox. Since you can only get 6" deep, I think you need to always go that deep. I also found out it works better after drilling a couple holes in the ash pan door since the primary air inlet is about even with the grates, and I'm not sure enough air was getting under the fire. Depending on how the furnace burns, you may want to consider this. I have a tin foil-lined adapter I can shove in where the holes are if there's a problem and I really need to cut the draft -- I'm hoping to build a nicer setup this year. I put four (I think?) small holes in the door and even with the primary draft closed, these holes keep the fire from going out, an issue I also had when the thermostat closed the draft completely. The thermostat doesn't seem to adjust fast enough to reopen the draft soon enough to keep an even fire, but that could just be my house, as it's small and insulated well and would go an hour or two on some days before it would trigger again. It took a lot of playing, and will take more playing this year, but even with all the headaches and out fires, I still saved a ton over oil!

Chris
farok
 
Hot Air Coal Stoker Stove: Leisure Line Pioneer top vent
Hand Fed Coal Furnace: Yukon/Eagle

Re: Yukon Husky Multifuel Furnace

PostBy: pjarchers On: Fri Sep 26, 2008 8:37 pm

Hey Chris, thanks for responding to my post. I was concidering modifing my ash pan for this very same reason about the automatic damper control and air flow from the bottom. I will modify my ash pan and experiment with it, I have an excellent idea and believe it will work for all people who have Yukons who want to burn coal, because the manual that comes with the furnace is in my opinion is BS as it pertains to burning coal based on what I learned from this site!!!!!!!!!!!

To burn wood it is very simple, but along with that, comes felling, cutting into 4 foot logs, hauling to the homestead, cutting again, splitting, stacking, seasoning, moving again to the cellar---- oh my!!!!! not to mention my sons baseball games, my daughters activities and yes throw in "dad can we ride the quads", maintain the swimming pool, cut the grass, "dad can I throw some pitches to you/ do some hitting at the batting cages" and work a full time job as a millwright where some nights I get home with barely enough energy to eat supper and take a shower!

I am going to experiment an will contact you with my idea and what I think will work for us and ALL other Yukon/Eagle owners. But I want to make sure Yukon/Eagle does'nt benefit from blood, sweat and tears off of our backs! I have NO PROBLEM sharing my/your modifications with anyone who can benefit from it!!!!!!!!


THANK YOU ALL VERY MUCH!!!!!!!!!! NEWBEE.
pjarchers
 
Stove/Furnace Make: Yukon Husky
Stove/Furnace Model: LWO-112

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