Wellons fabricates gas fired heaters ranging in size from 5 MM BTU/hr to 50 MM BTU/hr. Using a double helical coil, triple gas pass design, the heaters can be vertical or horizontal configuration, for thermal oil or glycol heating fluids. To improve gas consumption efficiency by up to four percent, Wellons heaters can be supplied with a stainless steel flue gas to combustion air preheater.

Wellons gas fired heaters can be skid mounted in transportable modules complete with a control cab to enclose the gas combustor and electrical equipment.