For those of us without palm trees in our yard its time to prepare for the endless winter. This year I am planning to find refuge in my garage. Maybe a little TV and a place to enjoy a Habano. I would like to know what others have done to heat their sanctuary. I guess my choices are ventless and vented. I have a gas line and a place for a vent from an old heater (my brick 2 1/2 car garage is 80 years old). I have heard that ventless heaters can cause an increase in moisture which sounds like a negative and provide less BTU's. I need 30 to 45,000 I figure and would just like to keep my garage about 50 degrees around the clock with the option to turn it up when I'm working. What have others used including brand names. Thanks