How Many BTUs Do I Need For A 900 Square Foot Garage?
How Many BTUs Do I Need For A 900 Square Foot Garage? Two-car garages (450-700 sq ft) require a 3600-7000 W unit (electric heaters) or 12,000-24,000 BTUs/hr (for the propane ones) Three-car or bigger garages (700-900 sq ft) need a 7000-9000 W unit (or 24,000-31,000 BTUs/hr). How many BTUs do I need for a 1000
