We fired up the furnace for the first time in our new 2010 Jayco Jayflight G2 during a recent camping trip and what an awful experience it was! Air blowing from the ducts smelled terrible and set off our smoke detector multiple times until I removed the battery from the smoke detector.
Fearful that we had a malfunctioning furnace or an incorrectly installed furnace, we shut the furnace down. We opened the doors and windows to flush the noxious smell even though it was near freezing outside.
I frenetically dug through the owners' packet that contained all the information on accessories and found the brochure relating to the furnace. Buried in the text was a statement that the furnace should be operated the first time with the windows and doors open to allow fumes from construction materials to ventilate. GOOD TO KNOW!
I have recommended to our Jayco dealer that sales and/or service personnel make sure new owners are aware that the furnaces in their new trailers need to be operated initially with the doors and windows open--preferably before the first camping trip in the new trailer.
The good news is that after the initial burn-in period, our furnace works without emitting noxious odors or setting off our smoke alarm. Keeps us toasty warm even in freezing weather.