Propane Garage Heater Recommendations

[trukman1]

Looking to install a heater in the garage and not sure what the best one would be. Garage is attached to the house and is 24' x 32' x 9'. Any experience anyone can pass on to help me make the best decision? There are so many options it's hard to decide. Would think I would like to get a forced air (blower) type but there are a lot or ventless radiant heaters and I'm not sure how well they work and how much propane they use. In Ohio where the temps get into the 20's a lot during winter. (any colder than that I won't be working in the garage!) Anyone having actual experience, I would greatly appreciate your input. Thanks.