Winter Boondocking

The Two Strategies: Go South or Go Cold

Winter boondockers generally choose one of two approaches:

1. Follow the warmth: Head to the desert Southwest (Arizona, New Mexico, southern Nevada) where winter temps are mild (40–70°F days). This is the most popular approach — it's why Quartzsite exists.
2. Cold-weather camping: Stay in northern locations and invest in the gear and systems to handle freezing temps. Higher cost and complexity, but opens up uncrowded destinations year-round.

Most boondockers do option 1 unless they have a specific reason to winter in cold climates.

The Core Challenge: Freeze Protection

Below 32°F, water in your tanks, pipes, and pump can freeze and crack. This is the primary concern for cold-weather boondocking.

Your Vulnerable Points

• Fresh water tank (usually inside and less vulnerable)
• Gray and black tanks (often external — most vulnerable)
• Water lines and pump (usually inside, but exposed sections are at risk)
• Drain valves (external, exposed)
• City water inlet

Freeze Prevention Options

• Skirting: Enclosing the underside of your RV traps heat and protects tanks and lines. Foam board insulation panels, commercial skirting products (EZ Snap), or even old moving blankets work.
• Tank heater pads: Electric heating pads designed for RV tanks. Draw ~35–75W each. Require power but are very effective.
• Keep heat running: Even a low setting (50°F) inside keeps under-floor components from freezing if your RV is reasonably well-insulated.
• Heat tape on exposed pipes: Self-regulating heat tape on any exposed water line outside the heated interior.
• Drain everything before hard freezes: If you expect extended below-freezing temps and can't prevent freezing, drain all tanks and blow out the lines with compressed air.

Heating Without Shore Power

Most RV furnaces run on propane with a 12V blower — they work off-grid but use significant propane and drain your battery. Understanding your options:

RV Propane Furnace

• Most RVs have a built-in propane furnace
• Typical draw: 1–3 lbs of propane per hour at full blast
• 12V fan draws 5–10A — significant battery drain overnight
• Reliable and effective but expensive in propane

Diesel Heaters (Espar, Webasto, Chinese units)

A diesel heater is the most popular upgrade for winter boondockers:

• Burns diesel fuel (or kerosene) — taps into your truck's fuel tank or a separate tank
• Very efficient: 0.1–0.5 liters/hour depending on heat output
• Minimal battery draw: 10–40W while running
• Runs silently and continuously overnight
• Chinese units (Vevor, Hcalory): $150–250. Good value but quality varies.
• Espar/Webasto: $1,500–3,000 installed. Commercial grade, much more reliable.

Propane Catalytic Heaters

• Mr. Heater Buddy and Big Buddy are popular options
• No electricity required — entirely propane-powered, no fan
• Produce moisture as a byproduct — ventilation required to prevent condensation
• Requires cracking a window — not ideal in very cold weather
• Good for supplemental heat or emergency backup

Electric Space Heaters

Electric heaters are only practical if you have a massive battery/solar system or are plugged in. A 1,500W space heater running 8 hours overnight uses 12,000 Wh — that's a 1,000Ah battery bank at 12V. Not practical for boondocking.

Cold-Weather Solar

Winter solar has two opposing effects: less daylight and lower sun angle (bad), but cold temperatures increase panel efficiency (good).

• Short days mean fewer peak sun hours — plan for 2–4 hrs in winter vs. 5–6 hrs in summer
• Snow on panels blocks output entirely — brush off promptly
• Cold panels are more efficient — panels rated at 25°C produce 10–15% more at 0°C
• Tilting panels toward the low winter sun significantly increases output — even a small tilt (15–30°) matters
• LiFePO4 batteries should not be charged below 32°F without a self-heating feature — check your battery's specs

Propane Management in Cold Weather

Cold weather dramatically increases propane use and can also reduce tank pressure:

• Below 0°F, propane tanks can lose pressure and stop feeding appliances properly — keep tanks insulated or in a warmer location
• Propane consumption doubles or triples in winter vs. summer
• Extended stays require planning for propane refills — know your nearest sources before going out
• 20-lb tanks hold about 4.7 gallons — a diesel heater alternative saves significant propane costs

Condensation Management

Cold exterior temps + warm interior air = condensation on windows and walls. In poorly insulated rigs, this can lead to mold and water damage.

• Ventilate daily — crack a window or vent even in cold weather to exchange moist air
• A MaxxAir fan running on low continuously removes moisture effectively
• Dehumidifiers help in very humid climates
• Avoid drying laundry inside — massive moisture source
• Cooking with propane produces moisture — vent while cooking

Best Winter Boondocking Destinations

• Quartzsite, AZ: The classic. Warm days, cool nights, massive RV community, free BLM camping.
• Yuma, AZ: Warmer than Quartzsite, good LTVA areas.
• Deming / Las Cruces, NM: Quieter alternative to Arizona, similar climate.
• Big Bend area, TX: Mild winters, stunning desert scenery, less crowded than Arizona.
• Southern Nevada (Boulder City area): BLM land near Lake Mead. Mild winters.
• Florida / Gulf Coast: For those who prefer a campground hookup winter base rather than BLM boondocking.

What to Pack for Cold-Weather Boondocking

• Extra propane — double what you think you need
• Skirting material
• Sleeping bag rated below your expected low temp (backup if heat fails)
• Tank heater pads
• Heat tape for exposed lines
• Snow brush / ice scraper
• Traction boards (Maxtrax) if camping in snow/mud
• Emergency backup heat source (Mr. Heater Big Buddy)