Yes, it uses propane from the main tank built into the coach. It will not use much and if you only use propane for cooking and hot water the propane tank will last a long time before needing refilled.
If you camp in cold weather and run the furnace, you will have to fill propane often. There is a gauge on the main tank that is easy to see. This gauge is float operated so it is accurate when read on level ground. (or coach is leveled with on board system)
Most, not all, dealerships will fill your propane tank for delivery. It is easy to refill once you need more and many campgrounds have propane trucks that come and fill you in place.
2015 Jayco Precept 35UN
Towing JEEP TJ with Roadmaster plates and bar w/Blue Ox Patriot brake
an Aluma low bed trailer with HD Road King and/or Polaris RZR onboard