David EilersNovember 6, 2013

1953 M-38A1 Stewart Warner Heater & Instructions

I spotted this ten page Stewart Warner 978 heater Instruction manual on eBay. Then I found what I believe is the actual heater itself. Seems like a neat combo.

Here's the heater: It is a Southwind Stewart Warner 978 M heater. This looks to be for a 6V vehicle though.

View all the information on ebay

5 Comments

Alaska PaulNovember 7, 2013 at 2:34 AM
These heaters are fantastic..... simple, safe and reliable. I have one on my M 38 that I converted to 12 volts. With two settings (low and high) the heater output is either 10,000 or 20,000 btu's. Low heat requires one gallon of gasoline for eight hours of operation and high heat uses one gallon of gas every four hours of use. The perfect heater for Jeeps used during our long and cold winters.
Russell getschmannNovember 9, 2016 at 5:22 PM
where can I find parts for this heater, I need a diaphram for the fuel control valve
David EilersNovember 9, 2016 at 7:00 PM
I don't have any idea. You might try this M-38A1 site. Maybe someone has some leftover parts or knows who does: http://www.willysmjeeps.com/v2/modules.php?name=Forums&file=viewtopic&p=55684 - Dave
Donald MacKillopFebruary 2, 2019 at 6:14 PM
I just had one of these leaders dropped right into my lap. It's never been installed. My buddy wants me to let him have it for his garage in the winter. I'm thinking maybe there is a better home. Anybody?
glen millerFebruary 12, 2020 at 11:52 PM
you still have this heater?