Micro Line Heater prevents equipment freezing and possible hydrate formation during pressure reduction at natural gas regulating sites. The Micro Line Heater heats the gas stream using infrared radiant heat transfer, eliminating the use of burners, glycol fluid and high maintenance heat exchange systems. Custom engineered units for non-standard applications are available. A secondary electric gas circulation heater augments the capabilities of the base catalytic line heater providing enhanced responsiveness to gas flow transients and deeper turn-down capabilities.