What is a BTU (British thermal unit)?

The BTU, or British thermal unit, is the standard measurement for heat output in the propane industry. One BTU represents the amount of energy required to raise the temperature of one pound of water by one degree Fahrenheit. For propane suppliers and end users in Florida, BTU ratings indicate how much heating capacity a specific appliance or piece of equipment can deliver.

Propane appliances carry BTU ratings that reflect their energy consumption and heating power. Common household equipment typically falls into these ranges: water heaters generally use 40,000 to 50,000 BTU per hour, pool heaters can require 150,000 to 400,000 BTU per hour depending on pool size, and furnaces for residential heating run between 40,000 and 100,000 BTU per hour. Grills and outdoor cooking equipment often operate at 30,000 to 60,000 BTU per hour, while space heaters are typically lower at 10,000 to 30,000 BTU per hour.

Understanding BTU ratings helps customers select the right propane tank size and delivery frequency for their needs. A higher BTU appliance demands faster propane consumption, which affects how often refills are necessary. Propane suppliers use BTU information to advise customers on equipment compatibility and tank capacity requirements, ensuring adequate supply for seasonal demands or multiple simultaneous appliances.