My recommensdation is radiant heat. 30% less fuel whether you use gas, oil or electric. You could put the loops in the ceiling and insulate over it or if the garage was new in the concrete like I did. The problem with overhead heaters is open flames. Fumes from gas and paint thinners ? well thats self explainatory. You can run the radiant off a water heater electric like I have done with a pump. There are many types of panels loops and such to fit your needs. Its the safest and most efficient. Why the water is only heated to 100 degrees. 1/2 the temp of a conventional hot water system. But if budget is the issue then overhead is it but be careful there are codes that prevent this.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.