Safety

Why van safety is different

A van is not a house. It's a very small, enclosed metal box that you sleep in, cook in, and run electrical systems in. The risks that exist in a house - fire, gas leaks, electrical problems - exist in a van too, but in a much more concentrated form. A small electrical fire that might be a minor kitchen incident in a house can engulf a van in minutes. A CO leak that might give you a headache in a well-ventilated house can be lethal in a sealed van.

The other difference is that in a van, you're your own building inspector, your own electrician, and your own safety officer. There's nobody checking your work. That means you need to hold yourself to a high standard, especially on the items that can kill you.

Electrical safety

Electrical issues are probably the most common serious safety risk in DIY van builds. A 12V system may seem "low voltage" compared to household 120V, but 12V with a lithium battery bank can deliver hundreds of amps instantaneously. A short circuit on a high-current 12V wire can melt copper, start fires, and cause serious burns. This is not hobby electronics - take it seriously.

Wire sizing

Using the wrong gauge wire is one of the most dangerous mistakes you can make. Wire that's too thin for the current it carries will overheat, and overheating wire inside your walls is a fire. Here are the basics:

Fusing - the most important safety measure

Every single circuit in your van must be fused. A fuse is a deliberate weak point that melts and breaks the circuit before the wire overheats. Without a fuse, an overloaded wire has nothing to stop it from getting hot enough to start a fire. Fuses cost $0.25-1.00 each. They are the cheapest fire prevention you can buy.

Grounding

In a 12V system, the negative (ground) side is just as important as the positive. Poor grounding causes voltage drops, flickering lights, intermittent failures, and in the worst case, arcing that can start fires. Use a central ground bus bar ($5-10) and run dedicated ground wires back to it rather than grounding everything to the van chassis in random spots. The bus bar should have a single, solid connection to the battery negative terminal.

Carbon monoxide detectors

Carbon monoxide (CO) is colorless and odorless. You won't know it's there until you have symptoms (headache, dizziness, nausea) - and by then you're already in danger. In a small, enclosed van, lethal concentrations can build up quickly from a malfunctioning heater, a running engine in an enclosed space, or even a poorly ventilated propane appliance. This is the number one killer in van and RV living, and the solution costs $25.

What to buy

Placement

Propane safety and leak detection

If you're running any propane appliances (stove, heater, water heater), propane safety needs to be taken seriously. Propane is heavier than air, so a leak will settle in the lowest point of your van and can reach explosive concentrations before you smell it. The odorant (that rotten egg smell they add to propane) can also fade in some conditions, so don't rely solely on smell.

Propane safety fundamentals

• Install a propane/LP gas detector mounted low (within 6 inches of the floor), near where propane would accumulate. These cost $30-60 and can save your life. Brands like MTI Industries and Atwood make 12V RV-specific propane detectors
• Use proper fittings and connections. Propane fittings must be rated for propane/LP gas. Don't use plumbing fittings, air fittings, or anything not specifically designed for gas. Use yellow Teflon tape (rated for gas) on threaded connections, not regular white plumber's tape
• Leak test every connection. After any installation or reconnection, spray every fitting with soapy water and look for bubbles. Even a tiny bubble means a leak that needs to be fixed. Do this every time you reconnect a tank
• Store propane tanks outside the living space if at all possible. Many van builds mount the tank under the van or in a sealed, vented exterior compartment. If the tank must be inside, it should be in a sealed compartment that vents to the outside at the bottom (since propane sinks)
• Turn off propane at the tank when not in use, when driving, and when sleeping (unless you have a properly vented heater designed to run overnight)
• Never use a propane appliance without adequate ventilation. Burning propane produces water vapor and CO2 (and CO if combustion is incomplete). Always have a window cracked or fan running when using a propane stove

Fire safety

A van fire can go from manageable to total loss in under 2 minutes. The combination of wood paneling, fabric, insulation, propane, electrical systems, and a small enclosed space means fire spreads fast. Prevention is the goal, but you need to be prepared to respond.

Fire extinguishers

Smoke detector

A battery-powered smoke detector on your ceiling costs $10-15 and gives you the earliest possible warning of fire. In a van, every second of warning counts. A photoelectric smoke detector is generally preferred for van use because it's less prone to false alarms from cooking steam than ionization detectors. Test it monthly.

Fire prevention

Emergency exits

In an emergency - fire, gas leak, medical situation - you need to be able to get out of your van fast, even if you're disoriented in the dark. Think about this before you build, not after.

Ventilation and air quality

Ventilation is covered in detail in our ventilation guide, but from a safety perspective, here's what matters:

The bottom line: leave some ventilation open at all times when you're sleeping in the van. Even on cold nights, a window cracked 1/4 inch or your roof fan on the lowest setting provides enough fresh air exchange to keep the air safe and comfortable.

Build safety and PPE

The build process itself has safety risks. You're working with power tools, sharp metal, electrical wiring, and chemicals in a tight space. Proper protective equipment is cheap and can prevent injuries that range from annoying to life-changing.

First aid kit essentials

Keep a first aid kit in your van during the build and while traveling. A decent pre-made kit costs $15-30 and covers most situations. Here's what to make sure yours includes, supplemented for the specific risks of van life:

Beyond the kit, know where the nearest urgent care and emergency room are relative to where you're building. If you're traveling, many van lifers keep a list of nearby medical facilities updated as they move. In truly remote areas, consider taking a wilderness first aid course ($150-250 for a weekend course) - it's useful knowledge for anyone spending time off the grid.

Complete safety checklist

Before you sleep in your van for the first time, go through this checklist. Print it out if you want. Every item here is something that either prevents a dangerous situation or helps you respond to one.