Economical Jobsite Heating... Electric, Kerosene , Diesel, Propane?

Im pretty most of you guys have some sort of heating for you site.

I have a 200,000 BTU Diesel/kero blower, and just purchases a 170,000 btu unit.

I was thinking about going propane, and wanted to know which is a more economical heater? Im paying aroung 2.79 for diesel right now.

I like propane heaters . The propane guys drops off 400 lbs of fuel and resupplies me every week . If working on a remodel i can use the owners NG and charge it to them . I think diesel is cheaper then karo the propane works best for me there is no smell no running out of fuel no re filling The price is about the same but it depends who supplies the gas . I only use heat when i reach the sheet rock stage of the job . . I like it cold the guys stay warm buy working . John

Cost effective heat?

Coats and gloves.

Until there is a need for heat, (rock, mud, paint) the cost often outweighs the benefits (slower production) caused by wearing the coat and gloves.

If given a choice, I would prefer propane merely because diesel stinks and is a known carcinogen.

Cost??

I was going with carharts and boots, but Nap beat me to it.

Last job (big one), curtainwall was up so we used electric heaters plugged into the washer/dryer outlets. Worked out cheaper this way, plus they were plug-in type so no standby electrician costs.
Anywhere else I like to use propane blowers.

the problem i face is more often than not.. im in a house where the gas is usally off, or theres no gas service.

If possible heat has always seemed worth the money to me, but then again the cold is one reason i moved to California, BTW it's 80 degrees today.

Arizona. Usually, we're just glad to be in the shade.

Same here. I use propane for all the previously posted reasons