Figured the thread was that smelly **** burned in buggys. I just saw it. Yellowing ceiling is from incomplete combustion or an inproper vent. The kitchen range should burn blue with just a little yellow on the tips. Vent free gas logs are a great way of zone heating. If you decide to go that route, call me. I can save you quite a few $$$. My early buy propane last year was $2.08. This year it is $2.58. My daughter, that does not use as much is closer to $3.00. I use about $4,200.00 per year in propane. But I have a lot of **** burning:
In BTUS
Barn
3 -vent free Heaters - 40,000 each
1 - vented heater - 32,000
Vent free fireplace - 40,000
heater - 60,000
Outside fire on "Race Deck" - 55,000
House
2 - hot water heaters
2 - furnaces
range
gas logs - 65,000
Gas grill - 80,000
Outdoor fire - 65,000
Pool
gas grill - 55,000
pool heater - 450,000
outdoor fire - 55,000
River Deck
Outdoor fire - 55,000
As you can see, we burn a lot of gas appliances.