10/22/2026
To stay warm in your camper, use your built-in propane furnace as your primary heat source because its ducts keep the plumbing lines from freezing. Complement it with targeted backup options, insulation, and moisture control.
Primary Heating & Backup Systems
• Forced-Air Furnace: Run your built-in propane furnace to circulate heat beneath the floor and around hidden water tanks.
• Propane Catalytic Heaters: Use a catalytic heater like an Olympian Catalytic Heater if you are boondocking, as they require no electricity and run safely below combustion levels.
• Portable Space Heaters: Plug in a ceramic or oil-filled electric space heater (such as an oil-filled radiator or a Lasko Bladeless Ceramic Heater) only when connected to shore power. Avoid plugging multiple high-wattage units into the same circuit.
• Heated Blankets & Pads: Use a low-wattage electric blanket, heated mattress pad, or a fleece blanket tucked directly beneath your body sheet to trap warmth while you sleep.
Insulation & Draft Blocking
• Install RV Skirting: Build or buy custom RV skirting around the base of your rig to trap dead air underneath and prevent the underbelly and tanks from freezing.
• Cover Windows: Press Reflectix panels or thermal blackout curtains against large windows and windshields to block cold glass and prevent heat loss.
• Plug Vents & Gaps: Place insulated pillow inserts into roof vent openings and use closed-cell rubber or draft strips around slide-out gaps.
• Add Area Rugs: Layer thick throw rugs or carpet remnants over bare wooden or vinyl RV floors to insulate against subfloor chill.
Protecting Plumbing and Managing Moisture
• Heated Water Hoses: Disconnect and drain standard water hoses after use, or hook up a 25-foot heated water hose rated for sub-zero temperatures.
• Control Condensation: Crack a window slightly and run your roof vent fan for a few minutes each day, or use moisture-absorbing products like DampRid to stop window sweat and mold.
