Good evening everyone, I'm sure it's been asked before but I need help setting up a thermostat for my outdoor wood boiler. I have a heat exchanger with blower and would just like to set up a thermostat that I can set at a temperature and have the fan come on and go off, no thermal coupler . I bought a Honeywell like the one pictured. I'm not for sure if this is the correct one. Thanks for any help.