How much does a regulator cost for a water heater?

The cost of a regulator for a water heater typically ranges from $30 to $150, depending on the type and brand. Installation costs may add an additional $100 to $200 if you hire a professional. It's important to choose a regulator compatible with your specific water heater model for optimal performance. Always consult with a professional or refer to the manufacturer's guidelines for the best match.