Kathy, we had a 13’ Scamp without a water heater, so I added one. I just had to “T” off the furnace propane
line, and fresh water line, after adding an electric water pump. The faucet was replaced with one that also had a shower head attachment. This worked great for washing dishes, or hair at the sink and for spong baths, or running the shower head out the kitchen window to a stand alone outside shower shelter. You could heat water on the stove and place the hot water in a new bug sprayer and use it outside in a shower shelter.
If you “click” on our Avatar, it will take you to our profile. From there there are two photo albums of mods (one for our Lil Snoozy
, and one for our Scamp). These willl give you an idea of how it looked and even some mods you may like to try out on your trailer. Dave & Paula