110 Volt - 15 amp:........Factory Fitted with UL approval

The in-line heater is designed to maintain the temperature of the water inside your tub as the water recirculates through the jets.

When the pump is activated, the heater will start working.

During extended period bathing, it may gradually increase the water temperature up to just over 100f.

The in-line heater is not intended or designed to heat your bath water up from cold or even luke warm.