From Big Bear to the high desert, winter RV trips from Southern California can mean freezing nights. A little preparation keeps the RV warm, the water flowing and the trip relaxing.
Heat
- Have the furnace serviced and tested before the trip
- Carry enough LP — furnaces use a lot in the cold
- Insulate roof vents and windows
- Use RV-rated electric heat on shore power to stretch LP
Water
- Use a heated fresh-water hose, or travel with a full fresh tank and disconnect at night
- Run tank heaters if your RV has them
- Keep cabinet doors open so warm air reaches plumbing
- Know how to winterize quickly if temperatures drop more than expected
Power
Cold reduces battery capacity. Start with fully charged, healthy batteries — or consider a cold-weather-capable lithium upgrade. See cold-weather battery care.
Safety
- Test CO and LP detectors
- Check tire pressure — it drops in the cold
- Carry chains if your route requires them
Before you go
A pre-trip service covers the furnace, batteries, tires and seals. See RV repair and maintenance.
Frequently asked questions
Will my RV pipes freeze?
They can below freezing, especially overnight. Heat, insulation and tank heaters help.
How much LP does a furnace use?
It varies by RV and temperature; plan for much more than in mild weather.
Can you service my furnace before the trip?
Yes.
Need help with this? See our RV repair and maintenance service, call (949) 830-1996, or request an appointment. Appointments are available Monday through Friday, and Saturday appointments begin January 1, 2027.
Have a question about your RV?
Our service advisors answer the phone — and we put the estimate in writing before any work.
