Yes if you are cleaning grease, doing sanitation, cleaning waxes, cleaning trucks or equipment.
No if you are cleaning houses or concrete, or if you have a limited budget.

Electric = Are you working in a food grade facility, do you need heat, but don’t have LP or Natural Gas
LP Gas = Do you clean in one building, but don’t have natural gas
Natural Gas = Do you clean in one building that has natural gas
Oil Fired = Do you have limited electric, no natural gas, or propane