Propane is rated at 2515 BTU per cubic foot.Natural gas is rated at 1030 BTU per cubic foot.Natural gas jets are designed to deliver 8 to 10 % Natural gas to air.Propane jets should deliver 4 to 5% propane to air.A natural gas jet using propane delivers so much fuel that not all of burns immediately (a too “rich” mixture), resulting in a buildup of unburned fuel, that will produce a fireball when it is mixed with enough air (and has an ignition source, such as a pilot light or ignited burner).
The reverse, using propane jets with natural gas, results in not enough fuel being mixed with the air (a too “lean” mixture), resulting in the burner or oven not igniting immediately, permitting the fuel air mixture to build up unburned until the pilot light finally ignites it, resulting in a deflagration fireball.
cpalmeresq about 9 years ago
Just another reason why this strip can be described as precious!
Ms. Nibs about 9 years ago
Agreed, CPalm. ; )
retropop about 9 years ago
She’s gonna give him a heart attack!
BlitzMcD about 9 years ago
A great moment in this vaunted strip’s history. Job well done, good sir!
roohey about 9 years ago
an oldie but goodie
Larry L Stout about 9 years ago
Love it!
3pibgorn9 about 9 years ago
Skeezix should have known to do what Walt did. But then we wouldn’t have had the Jack Benny flash back. heh heh
Airboy20 about 9 years ago
Yes, didn’t Skeezix run a fix-it shop in the ‘40s? He’d know what to do. Regardless, it is nice to see Walt in the limelight again.
Miserichord about 9 years ago
Propane is rated at 2515 BTU per cubic foot.Natural gas is rated at 1030 BTU per cubic foot.Natural gas jets are designed to deliver 8 to 10 % Natural gas to air.Propane jets should deliver 4 to 5% propane to air.A natural gas jet using propane delivers so much fuel that not all of burns immediately (a too “rich” mixture), resulting in a buildup of unburned fuel, that will produce a fireball when it is mixed with enough air (and has an ignition source, such as a pilot light or ignited burner).
The reverse, using propane jets with natural gas, results in not enough fuel being mixed with the air (a too “lean” mixture), resulting in the burner or oven not igniting immediately, permitting the fuel air mixture to build up unburned until the pilot light finally ignites it, resulting in a deflagration fireball.