Welcome from Wisconsin.
For a few suggestions to make getting help easier always give the year, make and model of your RV. When it comes to appliances there are just a few companies that make them for RV's so whatever you have in your pop-up will also be in larger RV's.
Check this link by wmtire, it's one of the best you will find.
New to RV's helpful hints by wmtire
The best thing you can do is take a couple of hours, or a day and locate everything in the camper. Write down the manufacturer and model number. Keep a copy of this info with the owners manual and at home. This info will very valuable when it comes time to get help. Say you have problems with your furnace, give the make and model number along with a description of the problem. Give as much information as possible. The more info you can give us with your question, the better we can help you.
Too many times we get questions like "My '___(insert appliance here)____' doesn't work. Please help!" These types of questions doesn't give us any info and we can only guess and you will get answers that don't apply.
There is a Library section on the forum that has downloadable documents for many items you find in your RV.
Forest River Forums - Downloads
Most owners and service manuals can be found on the manufacture's web site.
Now go out and enjoy your 'new to you' popup, have fun and make memories.