Modine HSB 33,000 BTU Hydronic Steam/Hot Water Heater HSB-33 - The Home Depot
How to Heat a Garage - GreenBuildingAdvisor
ALECOIL 50,000 BTU Hydronic Hot Water Hanging Unit Heater with Water Temperature Control Switch HHA50 Water to Air Heat Exchanger with Fan for Outdoor Wood Furnaces, Garage and Warehouse Heating - Amazon.com