How to Winterize Your RV at the Right Temperature

Proper winterization of your recreational vehicle (RV) is essential whether you're facing consistently cold nights or sporadic freezing temperatures. This guide will help you understand the optimal timing and methods to winterize your RV to ensure its safe storage during the winter months.

Timing Your RV Winterization

Deciding when to winterize your RV can vary depending on the local weather conditions. If nightly temperatures start dropping below 40°F (4°C), it's a good idea to consider winterizing, even if occasional nights may dip below 32°F (0°C). It's crucial to note that it might take days for the temperature to consistently drop to freezing if daytime temperatures fluctuate. Therefore, it is often recommended to winterize your RV at the onset of extended cold weather, which is typically when you've finished using it for the season.

While waiting until the temperatures consistently drop is common, it can be inconvenient. However, planning ahead based on the weather forecast can save you a lot of time and hassle in the long run.

Winterizing the Water Lines

Your RV's water system is the most critical component to winterize. Proper protection of the water lines will prevent damage due to freezing. Two methods can be used: blowout or anti-freeze replacement.

Blowout Method: This involves blowing out all the water from the system using a compressor. It's an effective method, but it requires access to a compressor and can be a bit labor-intensive. Anti-Freeze Replacement: Replace the water with propylene glycol-based antifreeze, which is non-toxic and safe for RV and marine applications. This is a convenient method that doesn't require disassembling the entire system.

It's important to winterize the water lines if the temperature consistently goes to freezing or below, especially if your RV lacks internal heating.

Protecting the Fresh Water Tank and Water Heater

The fresh water tank and water heater can withstand overnight freezing temperatures if occasional cold temperatures are expected. However, if you expect a long period of cold weather or temperatures dipping into the low 20s or teens, these components should be drained to prevent damage.

Maintaining Access and Warmth with Heaters

To avoid the hassle of winterizing and still retain the ability to use your RV during the cold months, consider installing personal heaters in strategic areas of your RV. Placing a 200-watt or 250-watt heater in the water hook-up compartment, the compartment housing the water pump, and the fresh water tank compartment (if applicable) can help maintain warmth. For added protection, place a heater near a vent under the shower tube, as the water lines run through the underside of the shower tub.

In addition, drain the water heater and open the bypass valves to ensure you can use hot water. If you need hot water, simply heat a pot on the stovetop. For short periods, keeping the fresh water tank full can help maintain heat near the pipes, preventing freezing.

Using Water Jugs Safely

If you do choose to winterize but still want to use your RV, use gallon jugs of water for cooking and personal use. Separate the jugs for hygiene reasons, using a couple of specially marked flush jugs. Mixing and matching jugs can lead to contamination and health risks.

Proper winterization and maintenance of your RV can ensure safety and functionality during the cold months, saving you time and stress.

Important Note: Always follow the guidelines provided by your RV manufacturer and consult with professionals if you're unsure about any steps in the winterization process.