Ditto on the stove, I always light it to purge air out of the lines. The water heater is usually furthest from the tank and that tries a few times initially in my unit.
With an older model you might be money ahead to have it services and get all the gas appliances checked out and properly adjusted.
Welcome and have a ball
Paul & Sheri - Upstate New York - SUN-0258
Amateur Radio KD2KCY - VHF 146.520 MHz
2012 F150 F/X 4, 6cyl EcoBoost, Max Tow pkg
2013 Rockwood 8280WS 5th wheel
2006 Sunline Solaris T-1950