Switching High Load Devices

I am setting up a Caseta system in a small house, and would like to be able to switch on or off two heated towel warmers, these are rated at 1200w each, which is larger than any of the available switches.

Is there a recommended way of doing this, perhaps pairing a Caseta switch with a higher current relay?

Just use a relay or contractor with a 120v coil. Switch powers coil, relay pulls in, load connects. Depending on how they are wired you could do everything at the panel and replace the current switch with a pico.