Easily retrofit a circulation pump to your existing Heater Craft boat heater system with this complete kit. We have included everything you need to keep your heater running hot even when the boat is running at low RPM’s.

Typically the heater blower unit is mounted in a location not in close proximity to the boats engine which supplies the hot water to the coil. When the boat is idling or moving at low RPMs there may not be enough water circulation in the system which will produce a decrease in hot air output. A common mounting location for the heater where this might be an issue would be under the drivers helm or in the observers compartment.

The circulation pump will efficiently move hot water from the engine to the heaters coil which in turn will help the system produce warm air through all outputs all the time. This upgrade is very nice for those that want to use the heater while they are getting ready or after finishing up their session on the water.