Never try to install a higher-wattage heater than your system is designed for, as this can destroy the circuit board or cause a fire. 2. Types of Heating Systems

What type of heater do I need to buy to replace a ... - Facebook

Hot Tub Heater Buying Guide: Keep the Heat On Is your hot tub lukewarm, or has the heater finally called it quits? Replacing a hot tub heater is a common repair, but choosing the right one requires knowing your system's voltage and flow requirements.