A catalytic heater is a type of heater which relies on catalyzed chemical reactions to break down molecules and produce heat.
Catalytic heaters can be used wherever heat is required, producing heat at a lower, controlled rate than unconstrained combustion. Examples of smaller and larger heaters are soldering irons, hand warmers (such as the Jon-E or Zippo) and space-heating appliances. Small-scale catalytic heaters are typically propane (LP), butane, naphtha (lighter fluid, Coleman camping fuel or "white gas" in the USA) or alcohol fueled.
Certain safety measures should be taken when using a catalytic heater. Catalytic heaters should be installed properly to prevent fuel leakage, in areas with good ventilation and away from combustibles.