Moisture

[DavidandAnnie]

Hi we’re new Montana owners. Been years since I camped.we tried out our 2021 Montana 295RL. THE beach was chilli and we noticed a high moisture content on front window sill on front of camper on the inside in morning but heater kept us war, is this normal?
Love the camper though.

[AZ Traveler]

David and Annie,

Welcome to the forum!

Your propane heater will produce a fair amount of water vapor so some moisture is normal.

You may do better from the moisture side by using your heat pump and fireplace depending on how cold it gets. The HP will works fairly well down to 35-40 deg.

[RMcNeal]

Also in the warmest part of the day, you might try using the vent fan for a few minutes to draw out any moist air. I've found that certain things like the coffee maker and microwave generate a lot of moisture in our rig, especially when it's cold and wet outside.

[jimcol]

We experienced the exact same issue first time out in our first hard side RV. (Never an issue in the tent or the pop up). The camp host noticed our windows all fogged up. He explained that just the two of us in there breathing expels moisture into the air, coupled with the propane furnace. Even though we were trying to heat the place, keeping one of the ceiling vents slightly open will eliminate moisture build up. Didn't make sense to us but we tried it. Worked.

[Foldbak]

We have the same model. You have to have a couple windows or vents open. We leave our kitchen and bathroom vents open. We also slightly crack the back window. We don't get any condensation.

[ColoradoKampers]

Originally Posted by AZ Traveler

David and Annie,

Welcome to the forum!

Your propane heater will produce a fair amount of water vapor so some moisture is normal.

You may do better from the moisture side by using your heat pump and fireplace depending on how cold it gets. The HP will works fairly well down to 35-40 deg.

Hey Zack,
A qualification to to your statement about moisture and propane heat. The propane furnace found in our RV's does not add moisture because it's a closed system. The air inside the RV is just recirculated around a sealed combustion chamber and never mixes with the exhaust which is vented outside. Now, if you are using some other type of propane heater, for example one of the catalytic heaters - then you probably do get some amount of moisture added to the air depending on how efficient the heater is.