Furnace shuts down when driving...

I had posted here (in Tech issues) since I didn't think to consider how a furnace might operate differently from one RV type to another...With the considerable turbulence of a combination dually & TC, I now believe that poster Chris Bryant is really on to something! Either way, with the deflector in place the furnace shutdown problem seems to be solved.

3 tons

I guess some of us should not post anything to try to help a TC owner. Maybe you should have posted in that section. I don't see how your furnace is different from others.

wolfe10 wrote:
Please post link to any furnace manufacturer or state DOT who says it is illegal to operate a propane RV furnace underway (excluding while refueling, in tunnels, ferry boats, etc).

It must be true as I remember reading it on the internet. :)

Chris Bryant wrote:
For some reason truck campers are notorious for flame blow out problems- odd and complex aerodynamics.

Also refers. Doug

Chris Bryant wrote:
For some reason truck campers are notorious for flame blow out problems- odd and complex aerodynamics.

Good info!! I'll keep this in mind.

bigfootford wrote:

Exactly! Love it when all the "big guys" chime in on our TC forum not having a clue about some of our complexities.

Actually some of us TC'ers have trouble with our fridges, water heaters with flame outs along with furnaces.

Except this post is not in the TC section. Here you're going to get replies from various rig owners (and ONLY at RV.net is this a bad thing LOL!). You could put TC Owners Only in the title and folks like myself won't bother going into those threads.

Chris Bryant wrote:
For some reason truck campers are notorious for flame blow out problems- odd and complex aerodynamics.

Exactly! Love it when all the "big guys" chime in on our TC forum not having a clue about some of our complexities.

Actually some of us TC'ers have trouble with our fridges, water heaters with flame outs along with furnaces.

Jim

For some reason truck campers are notorious for flame blow out problems- odd and complex aerodynamics.

Bird Freak wrote:

Passin Thru wrote:
YA! Don't get caught running it underway as it is illegal. The wind is probably blowing out the pilot light, find a piece of flashing and bend it so it shields the front edge and about half of the exhaust. If you can't figure that out I can't help you. Never enter a tunel with gas on period.

Please show me where its illegal to run the furnace while driving.

I don't think Passin Thru is going to come back to this post! He was just "Passin Thru" when he saw\replied to this post! LOL

Robert78121 wrote:
Driving down the road at 70 MPH?

Must be a poor design that allows this to happen. Neither my old 5er nor my present MH had this problem and quite frankly I can't see how that could possibly happen with either one. BTW, I live in a VERY windy area and have had my furnace on in the MH and 5er in very high winds in the driveway and it never blew out. I've driven/towed numerous times in high winds with the furnace on and it never blew out.

Update: I fashioned a sheet metal wind deflector and attached in to the stainless furnace intake/exhaust surround (just in front of the ports). The deflector sticks out to the side about 2 3/4" and does not impede either the intake or exhaust air flow...After this I turned on the furnace and took about a 15 mile freeway test drive with the furnace running full-out. Turns out, everything works fine now and the furnace stayed running without a hitch...My only worry was the plumbing lines when transiting Hwy 80 Donner Pass through snow and freezing sub-zero weather (was -17f last week)...

Best Regards,

3 tons