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Old 10-04-2009, 01:44 AM   #1
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Home made wood burning furnace


I have a wood burning stove and an unused oil furnace which i am combining to make a wood burning furnace.
I want the blower to be thermostatic controlled. I have a honeywell Ingitor unit with thermostatic control it has 3 wires going directly into it black orange and yellow and 2 wires that screw into it for the flame sensor and 2 more for the thermostat. I know i have to jump the flame sensor screws together. do i have to do anything with the ignition wires. black is hot and know not to touch that. Do you connect the orange and yellow wires together. or just cap them seperatly.

Also i am thinking of connecting a small duct from the blower to the air intake of the wood stove. Good idea? Its an old alaska stove 3/8 " steel 2 leveled top dual doors in the front with the twist air intake. I am worried about the fire getting to hot and smoke coming through when the blower isnt on.

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Old 10-04-2009, 07:16 AM   #2
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Home made wood burning furnace


sounds like you are best to not do this. I hope the fire department is very close to your house.

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Old 10-04-2009, 10:33 AM   #3
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Home made wood burning furnace


Close minded people need not reply. I am following all clearance requirement for the wood stove. There is nothing to catch fire.
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Old 10-04-2009, 10:53 AM   #4
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Home made wood burning furnace


read my other posts... I am far from close minded. But you are getting into an area that you seem to not understand. I build fireplaces. I work on boilers. there are many other dangers to be concerned about beyond clearances.
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Old 10-04-2009, 11:53 AM   #5
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Home made wood burning furnace


If the Honeywell ignition control your talking about, is R81 series primary. Jumping the FF terminals will not work.
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Old 10-04-2009, 11:56 AM   #6
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Quote:
Originally Posted by JustinK View Post
Also i am thinking of connecting a small duct from the blower to the air intake of the wood stove. Good idea? Its an old alaska stove 3/8 " steel 2 leveled top dual doors in the front with the twist air intake. I am worried about the fire getting to hot and smoke coming through when the blower isnt on.
I would keep the air intakes seperate
With the blower on this could cause a problem & suck smoke thru the stove
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Old 10-04-2009, 12:19 PM   #7
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the furnace return sucks in hot air from near the wood stove and blows it through the house. as long as the wood stove is installed correctly what dangers could there be? Im not modifying anything. The wood stove is untouched and the furnace is blowing hot air without the oil burning running. no different that running the blower manually. I just want it thermostaticly controled. its just 2 units doing what they where designed to do sitting next to each other. I just wanted to make sure i didnt burn out the ignitor control unit when disabling the burner. I have installed and repaired many furnace boilers and wood stoves. The only risk i could think of would be blowing smoke and carbon monoxide through the house. but the furnace return is not very strong 2 feet from the stove and not near any air intakes on the stove.



I not sure about adding a blower to stoke the fire like wood burning furances do. Adding a small fan connected to the blower's switch and blowing into the fire seems like a good idea if done safely. so i was asking if anyone has experience with this.
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Old 10-04-2009, 12:43 PM   #8
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Home made wood burning furnace


Forcing air into the wood-burner to increase combustion may cause the stove to overheat and possibly become a health hazard. You may want to call the mfg to get more advice.
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Old 10-04-2009, 01:54 PM   #9
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Home made wood burning furnace


Then you don't need to touch the oil burners primary control.

You do however need to make a new control system for the wood stove and add a control relay system for the oil furnaces blower.

Adding a blower to aid combustion on your wood stove. Makes it no longer UL approved. Insurance companies don't have to pay out on insurance claims from devices you alter from its UL approved design/construction.

CO can kill very quickly.
Over temp limits would be needed for the stove. It could easily start a chimney fire(or house fire) if you added a combustion blower.

There is more danger possible then you realize.
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Old 10-04-2009, 03:36 PM   #10
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Thanks for the advice i guess i'll ditch blower for combustion for now.

As for the blower control i am hoping i can just unplug the oil burner and jump the flame sensor and it will work as a thermostaticly controled blower
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Old 10-04-2009, 03:52 PM   #11
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No, you can't jump the flame sensor. And there is no reason to.
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Old 10-05-2009, 05:06 PM   #12
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If i dont jump the flame sense the ignitor will think that the oil burn is running with no flame and trip the reset button.
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Old 10-05-2009, 05:12 PM   #13
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Only if you wire up your control system wrong.

Why don't you make a wiring diagram and post it. And maybe we can help.
So you don't kill your self, or others.
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Old 10-05-2009, 08:40 PM   #14
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Quote:
Originally Posted by beenthere View Post

There is more danger possible then you realize.
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Old 10-05-2009, 09:26 PM   #15
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Home made wood burning furnace


It may not work if you jump the cad cell. The control usually does a self check and checks it for continuity and a specific resistance with no flame and with flame. Otherwise it would be dangerous and not approved.


Last edited by yuri; 10-05-2009 at 09:38 PM.
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