I have a 20x30 insulated garage that has a wood stove in it however I would like to add a propane heater also. I do not know much about heaters and the more I look the more confused I get. I would like to spend under $300 but cheaper would be nice.<br /><br />What I'm seeing in fleetfarm etc is radient and blueflame. I understand radient warms objects and blue flame warms air. Wich is more appropriate for a garage and what are the benifits.Also is one safer than the other.<br /><br />Venting is a possability however if its all the same I would proably prefer ventless.<br /><br />I'm guessing I'll need between 20-30,000btu max output sound about right? Thermstat would be nice but multi setting should work.<br /><br />What is right for me and what do I need to look for.