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#4606636 - 12/17/17 08:01 PM Heat My New Shop With 1940's DuoTherm Oil Heater
A310 Offline


Registered: 04/16/15
Posts: 331
Loc: Kelowna, BC, Canada
I have been trying to reduce the amount of waste oil I have to take to the recycling depot, so I decided to burn the waste oil I accumulate to heat my shop. Initially I was going to use a modern oil furnace, but I found an old 1940's Duo-Therm on Craigslist and bought that instead. After about 20 hours of cleaning and testing, I now have it burning a 50/50 mix of diesel and waste motor oil. It's been heating my shop now for a week and I love this old thing. It's burning about 2-3 quarts an hour and heats my shop up to 65 degrees. I no longer have to take my oil or filters to the recyclers as this furnace burns both.:) Here's some video's and pictures:

Testing Duo-Therm:
http://www.youtube.com/watch?v=MVi-GhfF-2w&t=5s

After a week:
http://www.youtube.com/watch?v=qbeAkV7Rh9g&t=74s









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#4606643 - 12/17/17 08:13 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
PimTac Offline


Registered: 03/04/17
Posts: 4213
Loc: Soviet State of Washington
Those old circulator heaters were really great in heating large spaces. I knew of a few that were wood fired that heated large workshops etc. Itís nice to see one in good and working order.
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#4606645 - 12/17/17 08:13 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2731
Loc: Wet side WA
Just like Mom and Dad had in the first home they bought in 1953.

Everyone congregated around that stove on cold morning and got dressed.


Edited by JohnnyJohnson (12/17/17 08:15 PM)
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Out: QSUD 5W-30 Purolator One 5030
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#4606646 - 12/17/17 08:16 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
MasterSolenoid Offline


Registered: 09/26/17
Posts: 161
Loc: One Step Beyond
Nice heater.

Play it SAFE and get a CO Detector (or two).

My Mother had a neighbor (40 yo) who had a natural gas heater in his garage.
It must have been defective, causing CO gas to build up.
He did make it to the outside, but died in front of the garage.

Carbon Monoxide
https://www.extension.iastate.edu/Pages/communications/CO/co1.html


Edited by MasterSolenoid (12/17/17 08:21 PM)

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#4606654 - 12/17/17 08:25 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
BrocLuno Offline


Registered: 09/06/15
Posts: 5506
Loc: Kalifornia Kollective
Nice smile
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#4606665 - 12/17/17 08:37 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
JHZR2 Offline



Registered: 12/14/02
Posts: 41758
Loc: New Jersey
Classic.

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#4606697 - 12/17/17 09:06 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
A310 Offline


Registered: 04/16/15
Posts: 331
Loc: Kelowna, BC, Canada
Thank for the comments guys, I've ordered both a carbon monoxide and fire extinguisher for this old stove.:)

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#4606789 - 12/17/17 10:45 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
aquariuscsm Offline


Registered: 12/30/06
Posts: 18150
Loc: Dallas,Tx USA
That's gorgeous!!
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#4606927 - 12/18/17 06:29 AM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: aquariuscsm]
Kira Offline


Registered: 08/19/10
Posts: 5203
Loc: Champlain/Hudson Valley
A friend has a combination stove (burns wood and has an oil jet) and he tried burning used oil in it.

It stunk up his house real well. Oh well.

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#4606968 - 12/18/17 07:55 AM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
Rick in PA Offline


Registered: 01/04/03
Posts: 3203
Loc: Southeastern, PA
The photo with the IR thermometer is priceless. laugh
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A wise man told me:
"Heat is your friend." and "Any oil is better than no oil."

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#4607056 - 12/18/17 10:02 AM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: MasterSolenoid]
3800Series Offline


Registered: 08/02/14
Posts: 1452
Loc: Gulf Coast, MS
Originally Posted By: MasterSolenoid
Nice heater.

Play it SAFE and get a CO Detector (or two).

My Mother had a neighbor (40 yo) who had a natural gas heater in his garage.
It must have been defective, causing CO gas to build up.
He did make it to the outside, but died in front of the garage.

Carbon Monoxide
https://www.extension.iastate.edu/Pages/communications/CO/co1.html


Agreed, had a friend pass away in a similar manner but in his old trailer he used while deer hunting.

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#4607269 - 12/18/17 01:17 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
JTK Offline


Registered: 08/14/03
Posts: 10559
Loc: Buffalo, NY
Neat! I love the look of those oldies. I had an apartment eons ago that was heated with a similar natural gas version. Also had one in the partially finished side of the basement in my first home.
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#4607405 - 12/18/17 03:28 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310]
dirtymudder Offline


Registered: 10/28/02
Posts: 106
Loc: michigan
We use one in our cabin up in the upper peninsula of Michigan. On a low flame it might be 50% efficient, and lots of sooting up. But when you get it cranked up it'll run you out of the cabin. The putting in oil filters has got me scratching my head. In the next year or two it will be propane and getting rid of the fuel oil burner.

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#4609722 - 12/20/17 09:20 PM Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: dirtymudder]
A310 Offline


Registered: 04/16/15
Posts: 331
Loc: Kelowna, BC, Canada
Originally Posted By: dirtymudder
We use one in our cabin up in the upper peninsula of Michigan. On a low flame it might be 50% efficient, and lots of sooting up. But when you get it cranked up it'll run you out of the cabin. The putting in oil filters has got me scratching my head. In the next year or two it will be propane and getting rid of the fuel oil burner.


Sorry for the late reply, they are great heaters for sure. I have been shutting it down when I leave the shop and lighting it in the mornings so I never run it on low settings, always on high, so like you said it's pretty clean on full heat. I incinerate my old oil filters so I don't have to drop them off at the recycling depot or dispose of them in the garbage. Here's whats left of a filter after 2 hours in the Duo-Therm.:)



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