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Heat My New Shop With 1940's DuoTherm Oil Heater #4606636
12/17/17 09:01 PM
12/17/17 09:01 PM
Joined: Apr 2015
Posts: 421
Kelowna, BC, Canada
A310 Offline OP
A310  Offline OP

Joined: Apr 2015
Posts: 421
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










2009 Ford F-350 (Detroit 4-53T)
2000 Ford Excursion (Triton V10)
1993 Dodge D250 (Cummins 6BT)
Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606643
12/17/17 09:13 PM
12/17/17 09:13 PM
Joined: Mar 2017
Posts: 8,262
...
PimTac Offline
PimTac  Offline

Joined: Mar 2017
Posts: 8,262
...
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. Its nice to see one in good and working order.


Cannot see signatures any longer so it doesn’t matter.
Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606645
12/17/17 09:13 PM
12/17/17 09:13 PM
Joined: Oct 2009
Posts: 4,041
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,041
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.

Last edited by JohnnyJohnson; 12/17/17 09:15 PM.

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Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606646
12/17/17 09:16 PM
12/17/17 09:16 PM
Joined: Sep 2017
Posts: 419
One Step Beyond
MasterSolenoid Offline
MasterSolenoid  Offline

Joined: Sep 2017
Posts: 419
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

Last edited by MasterSolenoid; 12/17/17 09:21 PM.

2002 Ford Ranger
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Four basic premises of writing:
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Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606654
12/17/17 09:25 PM
12/17/17 09:25 PM
Joined: Sep 2015
Posts: 6,175
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline

Joined: Sep 2015
Posts: 6,175
Kalifornia Kollective
Nice smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606665
12/17/17 09:37 PM
12/17/17 09:37 PM
Joined: Dec 2002
Posts: 42,628
New Jersey
JHZR2 Offline
Global Moderator
JHZR2  Offline
Global Moderator

Joined: Dec 2002
Posts: 42,628
New Jersey
Classic.

Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606697
12/17/17 10:06 PM
12/17/17 10:06 PM
Joined: Apr 2015
Posts: 421
Kelowna, BC, Canada
A310 Offline OP
A310  Offline OP

Joined: Apr 2015
Posts: 421
Kelowna, BC, Canada
Thank for the comments guys, I've ordered both a carbon monoxide and fire extinguisher for this old stove.:)


2009 Ford F-350 (Detroit 4-53T)
2000 Ford Excursion (Triton V10)
1993 Dodge D250 (Cummins 6BT)
Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606789
12/17/17 11:45 PM
12/17/17 11:45 PM
Joined: Dec 2006
Posts: 19,453
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline

Joined: Dec 2006
Posts: 19,453
Dallas,Tx USA
That's gorgeous!!


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
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Pennzoil Platinum HM 10W30

Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: aquariuscsm] #4606927
12/18/17 07:29 AM
12/18/17 07:29 AM
Joined: Aug 2010
Posts: 6,231
Champlain/Hudson Valley
Kira Offline
Kira  Offline

Joined: Aug 2010
Posts: 6,231
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.

Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4606968
12/18/17 08:55 AM
12/18/17 08:55 AM
Joined: Jan 2003
Posts: 3,203
Southeastern, PA
Rick in PA Offline
Rick in PA  Offline

Joined: Jan 2003
Posts: 3,203
Southeastern, PA
The photo with the IR thermometer is priceless. laugh


A wise man told me:
"Heat is your friend." and "Any oil is better than no oil."
Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: MasterSolenoid] #4607056
12/18/17 11:02 AM
12/18/17 11:02 AM
Joined: Aug 2014
Posts: 1,454
Gulf Coast, MS
3800Series Offline
3800Series  Offline

Joined: Aug 2014
Posts: 1,454
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.

Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4607269
12/18/17 02:17 PM
12/18/17 02:17 PM
Joined: Aug 2003
Posts: 11,238
Buffalo, NY
JTK Online content
JTK  Online Content

Joined: Aug 2003
Posts: 11,238
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.


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4607405
12/18/17 04:28 PM
12/18/17 04:28 PM
Joined: Oct 2002
Posts: 125
michigan
dirtymudder Offline
dirtymudder  Offline

Joined: Oct 2002
Posts: 125
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.

Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: dirtymudder] #4609722
12/20/17 10:20 PM
12/20/17 10:20 PM
Joined: Apr 2015
Posts: 421
Kelowna, BC, Canada
A310 Offline OP
A310  Offline OP

Joined: Apr 2015
Posts: 421
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.:)




2009 Ford F-350 (Detroit 4-53T)
2000 Ford Excursion (Triton V10)
1993 Dodge D250 (Cummins 6BT)
Re: Heat My New Shop With 1940's DuoTherm Oil Heater [Re: A310] #4969882
01/04/19 05:28 PM
01/04/19 05:28 PM
Joined: Jan 2019
Posts: 1
Nova Scotia
Railguy Offline
Railguy  Offline

Joined: Jan 2019
Posts: 1
Nova Scotia
I have smaller version duo therm oil stove space heater approx 2’ x 2’ x 40”. It has its own fuel tank attached. Having trouble keeping it running on available fuel - kerosene and diesel. Not easy to get ‘stove oil’ in my area. I was of the understanding that a person needs the cleaner oil for the carburetor to work properly. I did not have a damper in the smoke pipe when using it. Clean filter and carb with carb cleaner, add new fuel and watch as stove slows down

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