The size of the heater you will need for a 24×24 garage will depend on a few different factors, including the insulation of the space, the temperature you want to maintain, and how often the garage is used.
In general, a heater with a BTU rating of around 30,000 to 60,000 BTUs should be sufficient for a space of this size.
It’s always a good idea to consult with a heating professional to determine the best heating solution for your specific needs.
