How do you turn on the furnace that heats the livingroom

We have one thermostat for two furnaces. There's a slide switch on it. Position 1 is for the front furnace and position 2 is for the rear furnace

Bill

Some RV thermostats are set up with different zones. Some have two heat zones and two air conditioning zones.
Make and model of thermostat?

Moved from Class C.

All there is on the one in the bedroom is an on/off switch at the bottom and a temperature control stick. Could there be something on the inside of the thermostat that I have to do?

Sorry, it's a Atwood Hydroflame.

if its on and the bedroom furnace works. Start with the obvious and go from there. A blown fuse, or breaker, is the gas turned on to the furnace and at the furnace is there a pilot light or does the electronic ignition work maybe even a safety switch. Usually it is something small so start at the beginning and work your way to the hardest issue for not working.

boottboo wrote:
All there is on the one in the bedroom is an on/off switch at the bottom and a temperature control stick. Could there be something on the inside of the thermostat that I have to do?

Probably not. Sounds like it was set up to have another thermostat for the living area.
I have no idea where it is located. Should be fairly visible though. Maybe others can help.

Furnace is an Atwood.
What is make and model of the thermostat?

Looks like two tstats on this one.
https://youtu.be/0qJvM8ma2nc

The thermostat says Atwood Hydroflame.
I want to thank everyone that has tried to help and as soon as I can, I will watch that video on YouTube. Also, when I do figure this out, I will be sure to let all of know the outcome, lol.