I think it's time that we challenge the misconception that space heaters are dangerous to use in your RV. Instead, let’s focus on the limitations your RV's electrical system has. Which actually poses the bigger danger when it comes to the safety issues of portable heating in cold weather
Pay attention to wattage! ⚠
🠊 There’s a reason why your electrical system views space heaters as the enemy! One fallacy is that a small heater is safer than a large one. The reality is that it doesn't matter whether it’s a teeny tiny heater or a massive clunker. If the sticker says 1500 watts, it’s drawing the exact amount of power, no matter it's size!
🠊 Big or small, a space heater consuming 1500 watts of energy is a strain on your RV's wiring system.
🚙 RVs Are Different from Houses 🏠
🠊 The danger falls less on the space heater and more in the fact that the components used in RV construction really aren’t the highest quality.
🠊 Most RV manufacturers use "wirecon" surface mount outlets which is a type of self-contained device. Unlike the outlets in a traditional brick and mortar house that sit inside a housing box, wirecons are designed to be installed directly unto the thin flimsy walls of an RV.
🠊 Wirecons create loose connections that often lose full contact with the wire. This is a problem because a loose connection acts as a restriction. When electricity fights to get through that loose spot, it creates heat, which ultimately melts the plastic and may start a fire.
❓But won’t the breaker trip...
🠊 False logic answers the question: "If a breaker is 15-amp and the heater is only 12.5-amp, there shouldn’t be an issue, right?” Wrong!
🠊 It’s really about the continuous load. Electrical code and manufacturers say you should not run more than 80% of a breaker's capacity for anything over 3 hours. A 15-amp breaker’s safe continuous limit is about 12 amps. A 1500-watt heater draws about 12.5 to 13.5 amps, putting it immediately into the "danger zone" for any type of long-term use in an RV.
Alternative solutions to staying warm. 🔥🌡
🠊 Lower the wattage: Purchase a heater with multiple settings. A heater running at 500–700 watt is significantly safer for your RV's wiring.
🠊 Consider oil radiators: Yes, they are a bit bulkier, but they are great for maintaining steady and efficient heat.
🠊 Desktop heaters: Smaller 400-watt heaters draw far less power and usually offer plenty of comfort for small RV spaces.
🠊 Layer it up! Protect your head and feet (even indoors). Wear/use naturally insulating wools like merino, alpaca and bison.
🠊 A heated throw blanket (50'x60") uses only 50-100 watts. You do not need a heated blanket the full size of your bed!
An ounce of prevention...
🠊 Remember that in an RV multiple outlets are often on the same circuit. If you have a space heater on one and a crockpot on another, chances are you are already overloading the system!
🠊 Check your outlets by simply feeling them throughout the day. If they are warm to the touch, unplug heater or appliance immediately.
🠊 Inspect your cords. Unplug throughout the week to look for signs of melting or prong damage. Space heaters should never be run on power strips or extension cords.
• 🠊Avoid heater units that plug directly into the wall socket without a cord. This puts too much weight on flimsy RV outlets and loosen wiring connections.














