This season I decided to get rid of my two kerosene heaters and air
circulation fans and replaced them with a propane fired Modine 45K BTU Hot
Dawg.overhead heater. I installed it myself and am using a thermostat with
it. I am very happy with the installation. Total costs was approximately
$500 plus a new 120 gal propane tank which I rent for $10/yr. If you can
afford it, go this route. The propane people did a complete system check
before we turned it on and they confirmed that my installation was per code.
I think it is hog wash about the overly cautious sometimes anal remarks
about fumes, explosions, etc. You would have to have an extremely heavy
concentration of fumes probably to the point where you overcame your self
before you would blow anything up. In this heater, the external fan comes
on first, then the pre-ignition fan comes on and finally the unit ignites.
By that time, a lot of air has been circulated. The heating element is
completely contained also. I have done a lot of finishing with my kerosene
heaters running and the door slightly ajar for fresh air before and those
had direct flames which were quite significant and I am still here to talk
about it. I also run an overhead Jet air cleaner most of the time when
generating dust along with a Penn State dust collector attached to my power
tools. I am cautious but not paranoid about this subject.
I live in Northern Indiana and have a 2 1/2 car insulated garage for my work
shop. I go out and turn the thermostat on and come back in 10-15 minutes and
my shop is very comfortable by then. I think the key to keeping my shop warm
this winter is to not allow the concrete slab floor to get too cool down to
far, so when it gets real cold, I may leave the system on and set the
thermostat to the minimum.