Hey JB....We have an older natural gas unit heater (similiar to ones in warehouses mounted in the corner from the ceiling) that we could sell you cheap. We live in Rochester. I am not sure of the BTU...but it will definately work well. Make sure u know the square footage too. But 35-45k BTU should work fine. We were gonna use these unit heaters but talked to HVAC guys and they suggested to go with the Raidiant Heaters, because they are way more efficient.