oil furnace venting
- Thread starter aleeeeaaa
- Start date
You are looking for L-vent. LV is test to UL-103 at 1700* max temp. All fuel is tested to UL-103 HT, 2100*. I would try Metal Fab or Dura-vent. Both have drawings with appropriate parts break-downs on their sites. Do not oversize the flue.
This will not be a cheap system and oil is about the most volatile fuel there is cost wise. If you replace the oil in the future, which I expect you will want to do given the fuel pricing, the chimney will likely be to big to use for whatever you want to put in. In other words, the free used oil furnace will lead to "free" not looking to good
This will not be a cheap system and oil is about the most volatile fuel there is cost wise. If you replace the oil in the future, which I expect you will want to do given the fuel pricing, the chimney will likely be to big to use for whatever you want to put in. In other words, the free used oil furnace will lead to "free" not looking to good
STINEY
Well-known member
I had this same style of furnace in my old shop.
I built a frame for it so sit on from angle iron, holds it 18" above the floor so the downdraft has somewhere to blow to, and by boxing it in I can direct heat where I want it.
The exhaust stack is simply 3" or 4" flue from the hardware store. Make sure you use double or triple wall going thru the wall/ceiling (there are collars for this at the hardware store as well) I simply used the one from the mobile home, it was well built and triple air-gapped. I ran it thru the wall and with a 90* went on up to a stack making sure to get it to the same heigth or higher than the roof peak. Made a brace for the stack from 1/8" strap metal to keep the stack in place and resist wind movement.
So my exhaust has 1 90* bend right on top of the furnace, 2' of single wall going to the collar in the wall, and 1' of double wall outside. Then a second 90* double wall and the rest is about 10' of double wall with a rain/bird cap.
Worked excellent.
I only ran it when I was out there working, so 100 gallons lasts me roughly the whole winter. That's running it in the evenings a few nights a week for a few hours, and occasionally the whole day on a saturday or sunday. My 2 car shop is well insulated both walls and ceiling with reclaimed fiberglass batts, but my doors are old wooden things with no seals.
<<<< You'll notice my new shop is slightly different. I need to build walls and ceiling to even begin to think about heating an old barn!
Good luck!
I built a frame for it so sit on from angle iron, holds it 18" above the floor so the downdraft has somewhere to blow to, and by boxing it in I can direct heat where I want it.
The exhaust stack is simply 3" or 4" flue from the hardware store. Make sure you use double or triple wall going thru the wall/ceiling (there are collars for this at the hardware store as well) I simply used the one from the mobile home, it was well built and triple air-gapped. I ran it thru the wall and with a 90* went on up to a stack making sure to get it to the same heigth or higher than the roof peak. Made a brace for the stack from 1/8" strap metal to keep the stack in place and resist wind movement.
So my exhaust has 1 90* bend right on top of the furnace, 2' of single wall going to the collar in the wall, and 1' of double wall outside. Then a second 90* double wall and the rest is about 10' of double wall with a rain/bird cap.
Worked excellent.
I only ran it when I was out there working, so 100 gallons lasts me roughly the whole winter. That's running it in the evenings a few nights a week for a few hours, and occasionally the whole day on a saturday or sunday. My 2 car shop is well insulated both walls and ceiling with reclaimed fiberglass batts, but my doors are old wooden things with no seals.
<<<< You'll notice my new shop is slightly different. I need to build walls and ceiling to even begin to think about heating an old barn!
Good luck!
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Stiney, you are correct and I was not on this. I forgot that the trailer furnaces use the mobile home venting. My apologies for misleading the original poster. But come to think of it, if the furnace is installed in a different location and type of structure other than a mobile home: 1: is it a legal install 2: Will it have to use an L vent minimum type pipe. Check the listing for the furnace and see if it can be installed in another type structure.
Of course if there is no inspection done on it, it matters only to the owner and the insurance company. If there is an inspection being done I would speak with the inspector prior to putting any money into it.
Of course if there is no inspection done on it, it matters only to the owner and the insurance company. If there is an inspection being done I would speak with the inspector prior to putting any money into it.
STINEY
Well-known member
Its all cool Jackfre.......I'm not even sure what you said in your first post.
I was just posting my actual experiences, not looking for a debate. Real world info for the OP.
I was just posting my actual experiences, not looking for a debate. Real world info for the OP.