Pawntan: Great to hear your new 195BH went 1,600 miles with no major problems. Sounds like your eaz lift sway control is working well for you. In May we will tow our trailer 2,000 miles through UT, CO, NM, AZ and NV. This will be our first long trip over two weeks.
Sorry to hear about your issues with your water heater/showers, furnace and propane tank during your trip. Here are some things that may help:
BTU input of our 195BH gas appliances:
1. 19K furnace.
2. 12K water heather
3. 6.5K each gas cooktop burner (two burner).
4. 1K refrigerator.
What we did:
1. Furnace (19K BTU). "Never" use it. It is the only gas appliance in the trailer that not only draws (wastes) the most propane, but is too noisy for us when the blower fan cycles on all night. We learned from our former 2014 hard side pop-up trailer w/same furnace how useless it was for us.
Hookups: We use an 120v Delonghi EW7507EB portable oil filled radiator. It is digital with three heat settings and adjustable thermostat. It is QUITE....absolutely no sound and nice even, steady heat. Our bathroom door is always closed when heater is on.
Dry camping: We have a 3K BTU Camco Olympian Wave 3 catalytic converter. It has direct spark ignition (manual striker) and has two heat settings. Very quite, even, steady heat and only 3K BTUs. This is where a 2nd propane tank comes in and routing the hose connection back to trailer. I installed this in our former hard side pop-up and it worked great. For our 195BH I plan to run the propane hose up into one of the dining room seat storage boxes and set the catalytic converter on the dining room table at night. I have a quick disconnect at the cat. converter to remove it from the table. This cat. converter can be either wall mounted or sit on legs. Not installed yet so I don't know if our 3K BTU Wave 3 is big enough for our trailer. If not, the next size up is a 6K BTU.
2. Water heater (12K BTU)/showers. Keep the switch turned off when not using. We turn the water heater on and let the 6 gal tank get fully hot before we take a shower. Between each person's shower, let the heater reheat the tank fully. The tank takes about 15 min to reheat. When we do this, each shower (hot to warm) lasts about 6 min. before the tank needs to reheat. The water heater is turned off all night and on in the daytime only when we need hot water. Keeping it off as much as possible will help save propane.
3. Two burner gas cooktop (6.5K BTU each burner). We primarily use the cooktop (both dry camping and hookups) for boiling hot water for instant coffee and making soup. We do most of our cooking outside with a 2nd 20lb. propane tank.
4. Refrigerator (1K BTU). Propane when dry camping, electric when on hookups.
Your gray water tank should not have filled up after 4 two minute showers. Could your use of the kitchen sink (over the week) nearly filled your grey tank?
FR should never have put a single 20lb. propane tank on these trailers. The furnace and water heater will use up the tank fast if not conservative. Our former 2014 hard-side pop-up (much lighter weight) had two 20lb tanks and we had plenty of extra propane after two week trips (using our furnace changes above).
Last week I changed our single propane tank to dual propane tanks and modified the battery tray to accept two Group 27 12 volt batteries. Will not travel with two 27s on the tongue (to much weight) but will hook them both up when dry camping for long periods. The dual propane tanks will sit just fine on the tongue frame. In my next Post I will send photos of these two modifications. Very happy now to have dual propane tanks on our trailer.