One of the common questions that we get, is what voltage do I order? Do I order 120 volt or do I order 240 volt?
If this is a replacement heater, you’re going to want to match the power supply that you already have.
The way that you can find out the voltage of the heater you currently have, is to look on the label that’s on the heater assembly.
If this is a new installation, you can install either 120 volt or 240 volts. We recommend you first discuss with your electrician, but we do recommend 240 volts. One of the benefits of 240V is that it offers a higher maximum amperage in the circuit, so you can potentially add a heater onto the circuit later down the road.