PTC Heater // Relay // GPIO

I build a PTC heater that I currently plug in as needed, but I'd like to use a relay connected to the GPIO pins and an Octoprint plugin to control it.

I have a few of these relays laying around that seem like they should work perfectly for this use case. Additionally I noticed that octoprint has a section in the temperature readouts for a chamber heater, is it possible to tap into that or no?

Just looking for some advice as I know a few people have done this, and I'm sure some ways are better than others.