Due to safety concerns we have chosen not to offer immersion heaters at this time. However we do offer what we feel to be an excellent alternative to the immersion heater for the same cost. The PBES series baptistry heater works great in portable baptistries as well as built-in baptismal pools. The efficiency of the PBES system is much greater than an immersion heater due to the fact the water is circulated through the system. For more information on the PBES heater click HERE.