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H1 USAF ground support heater and trailer

Posted: Thu Apr 03, 2014 4:02 pm
by 58chevybiscayne
I just picked this up today, I cant find much about it but it looks all original the engine is free inside as well,from what I have seen its some sort of engine heater,but im unsure of its use any of you out there know what its used for, not to sure what im going to do with it either but it is pretty cool.

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Re: H1 USAF ground support heater and trailer

Posted: Tue Oct 24, 2017 9:49 am
by phantomfixer
I know this is an old thread...but man...those little H1s saved my butt many of nights in Germany...a gasoline burning heater with a blower that put out forced hot air...used to help keep us warm, help cure adhesives on aircraft repairs in freezing temps...just a great all around little heater...wish I had one...

Re: H1 USAF ground support heater and trailer

Posted: Tue Dec 19, 2017 5:05 am
by Rustman
So this is a rabbit hole I just fell down since I'm working on buying a WW2 era maintenance tent. Seems the Quartermaster Corps determined the "Herman Nelson Self-Powered Unit Heater" used by the AAF for heating aircraft engines was suitable for heating up the maintenance tent. Yours is a later model and in fact Herman Nelson is still in business. It appears the original ones had an engine for driving the blower, and part of the ignition system also fired the heater. Therefore the entire unit was self contained, self powered with no need for external electrical power.

Matt

Re: H1 USAF ground support heater and trailer

Posted: Sat Dec 23, 2017 9:51 am
by Tim Shanteler
I have one of those WWII Herman-Nelson heaters used by the AAF.

Re: H1 USAF ground support heater and trailer

Posted: Tue Dec 26, 2017 2:41 am
by Rustman
oooh. Can we see pictures? I found very little online for the Herman Nelson from WW2. Found a bit more for the Stewart Warner version.

Matt

Re: H1 USAF ground support heater and trailer

Posted: Wed Dec 27, 2017 9:41 am
by Tim Shanteler
Sure.... I'll have to figure out how to upload them.

Re: H1 USAF ground support heater and trailer

Posted: Mon Mar 12, 2018 11:02 am
by Rustman
Tim,

Could you just email them to me? matthew.picciotto@gmail.com

Thanks
Matt

Re: H1 USAF ground support heater and trailer

Posted: Mon Nov 02, 2020 5:38 pm
by Old salt
I've been looking for any kind of information, service manuals, etc for H 1 heater. We just bought it and it worked fine for 1 day. And with limited knowledge we're havin a hard time. This one was mfd by Engineered air systems Inc. The engin is British made.

Re: H1 USAF ground support heater and trailer

Posted: Tue Nov 03, 2020 4:58 am
by redlight
I have some service manuals for your heater in PDF format. I also have a H! heater in my garage. PM me with your email address and I will send you what i have and some pictures to compare.

Re: H1 USAF ground support heater and trailer

Posted: Fri Nov 06, 2020 5:43 pm
by Old salt
tonywells921@gmail.com
redlight wrote:
Tue Nov 03, 2020 4:58 am
I have some service manuals for your heater in PDF format. I also have a H! heater in my garage. PM me with your email address and I will send you what i have and some pictures to compare.

Re: H1 USAF ground support heater and trailer

Posted: Sat Nov 07, 2020 1:20 pm
by redlight
E-mail sent

Re: H1 USAF ground support heater and trailer

Posted: Tue Nov 17, 2020 4:12 pm
by Troop121
I see this is an older post. I have 2 of these units! One for sale with all accessories and a second complete unit. Air Force models.

Re: H1 USAF ground support heater and trailer

Posted: Wed Nov 18, 2020 1:44 pm
by redlight
I have a unit in my garage that I can not get the engine to start. I would love some help to get the engine to run, See Pictures below
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I am located in Boston Ma.

Re: H1 USAF ground support heater and trailer

Posted: Tue Dec 21, 2021 11:07 am
by prettyferrets
redlight wrote:
Tue Nov 03, 2020 4:58 am
I have some service manuals for your heater in PDF format. I also have a H! heater in my garage. PM me with your email address and I will send you what i have and some pictures to compare.
Redlight, i just got a HM h1 ground support heater, i have the engine and burner ignitor working, but now i need to work on the fuel pressure pump, in my research, i saw you had some PDFs on this unit, as always, more info is better than less, and i would love to see it run again, and thats how i joined this forum, in the hope you could email me those PDFs, you will never realize , how much that would be appreciated, thanks in advance, Dan
email in profile

Re: H1 USAF ground support heater and trailer

Posted: Thu Dec 23, 2021 7:07 am
by redlight
I sent you 4 emails. let me know if you get them