Thread Tools Search this Thread Display Modes
Old 01-24-2010, 05:03 AM   #1
Silver Mist
LI Pets's Avatar
1977 31' Sovereign
Riverhead , New York
Join Date: Aug 2006
Posts: 3,008
Images: 28
Question Propane smell from heater

I noticed a faint Propane smell on start up most times it cycles on.

I have a detector nearby that was tested and doesn't go off so it is so minute only a nose can pick it up.

It lasts 3-5 seconds and goes away so it's burning clean the flame looks perfect.

It's warmer during the day here in Fla so it's off all day, so
I gave the nose test outside by the intake/exhaust and I can smell propane there.


I'm guessing the valve that allows propane in is leaking, then when it is fired up burns off 99.9%

What do you think?

'77 Sovereign Intl 31' CB
WBCCI R2 Rep VAC 11411 Metro NY VP

LI Pets is offline   Reply With Quote
Old 01-24-2010, 06:05 AM   #2
Rivet Master
Lothlorian's Avatar
1973 27' Overlander
Loganville , Georgia
Join Date: Nov 2007
Posts: 1,713
I had the same problem when I put in my new furnace. It was from the fittings leaking. Make sure you use plumbers tape for gas. It is usually yellow in color. I took my fittings apart and used the gas plumbers tape and the smell went away.


Brian & Adrienne
Lothlorian is offline   Reply With Quote
Old 01-24-2010, 06:16 AM   #3
Rivet Master
RickDavis's Avatar

1961 24' Tradewind
1969 29' Ambassador
1970 21' Globetrotter
Jamestown , Tennessee
Join Date: Jul 2008
Posts: 1,780
Naturally you want to check everything for leaks. however it is not uncommon to get a little odor, particularly as you get to near empty on a propane bottle. The odorizing agent tends to accumulate in the bottom of the tanks over the years. I will usually start to notice a little odor from the stove until the regulator switches to the full bottle then it is gone.
In your case I think you are right that a little is released at ignition. I have noticed that on an unvented heater we have in the basement.
Rick Davis 1602 K8DOC
61 tradewind, plus a few others
13 Ram 2500 TD
99 Dodge TD 577K miles

RickDavis is offline   Reply With Quote
Old 01-24-2010, 08:25 AM   #4
4 Rivet Member
2008 16' Safari
Destrehan , Louisiana
Join Date: May 2009
Posts: 395
You really need to check this out. First, is this the original heater or a replacement? If it's the old unit you may have a rust hole in it.
The heater uses two fans. One blows outside air into the fire box. This is were the gas and flame are. The burned and unburned gases are then expelled outside. The only place to leak gas into the trailer should be from the gas lines that connect to the heater.
The second part of the system circulates air from inside the trailer over the fire box. This heats the air and warms the inside of the trailer.
If you are smelling gas, either you have gas lines leaking, gas control valve leaking or a hole in the fire box that lets fumes into the trailer. Even if you don't smell gas, you could be leaking burned gases into the trailer. Do you have co2 monitors in the trailer?
dlb435 is offline   Reply With Quote
Old 01-24-2010, 02:03 PM   #5
Wise Elder
Jammer's Avatar
2010 30' Classic
Vintage Kin Owner
South of the river , Minnesota
Join Date: Dec 2009
Posts: 4,020
It shouldn't do that and it may be a safety problem.

There might be a leak where the burner connects to the gas valve. I'd check there first, with soapy water. Also, it is possible that the heat exchanger is burned out and has pinholes.
Jammer is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Smell of propane in '81 MH Astrodokk Classic Motorhomes 7 11-14-2009 03:08 PM
Water heater propane smell Bonitafarms Water Heaters, Filters & Pumps 13 05-03-2009 05:31 PM
Smell propane pjude Furnaces, Heaters, Fireplaces & Air Conditioning 5 11-11-2008 09:12 AM
Resolved propane smell....I think Dan S All Argosy Trailers 6 10-21-2007 06:30 PM
Propane smell jimmieanna LP Gas, Piping, Tanks & Regulators 19 08-19-2006 02:24 PM

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:22 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.