LYCOS RETRIEVER 
Tent Heater
built 677 days ago
The lightweight Tent Heater offers the rugged, heavy duty design of all steel housing with enclosed heating elements and a sealed motor. This powerful heater will raise the temperature 50° in a work tent. It is UL listed, CSA approved, requires 110V AC, and offers 1500 watts of 5000 BTU with 115 CFM airflow. 12" x 8" x 12", 14 lbs.
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Coleman Catalytic Propane Tent Heaters - This one only weighs about 4 pounds, so it's easy to carry around. It's got an electric ignition, so you can turn it on without matches. It runs for seven hours on one propane cylinder - much closer to a full night's sleep. It costs about $55 and is available online here.
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Until recently your choices for having a heater in your tent were pretty limited. Even putting a candle in a jar with holes punched in the lid is outright dangerous. If you were lucky enough to have electricity at your campsite, a rare find at public campgrounds, you could use a small electric space heater. That came with a number of potential complications including the risk of burning your tent down, or nasty electrical shocks. The best way to get warm really came down to how quickly you could get a fire started when you woke up in the morning. Recent advances in technology have changed this.
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This high-performance propane tent heater with its 12 volt blower provides great air flow and increases air temperature by over 200 degrees in seconds.The safe-design heater stays outside the tent so no CO enters the tent. It's easy to use. Just turn on the blower and light the burner. Enjoy 3 to 8 hours of heat with two 16 oz. propane cylinders. 12 lbs. 12" x 8" x 8"
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The bottom line is if you are going to use a heater in your tent you should be extremely careful. Powerful heaters made by Century and others aren't designed for the enclosed space of a tent, electric heaters can ... be dangerous, assuming you can even find a place to plug it in. If you do want to explore heating your tent you should take a long look at the newest line of catalytic heaters. Efficient and safe, when used properly they can take the chill out of the air, and make getting out of the sleeping bag just a little bit easier. The other benefit is they can help you squeeze a few more weeks of camping out of the season, before the snow starts to fly.
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Tent heaters are used to keep the interior of your tent warm (but they are often used in campers or other small, enclosed spaces). It's important that you get one that has been actually designed for small spaces. Using some random heater inside a tent can be extremely dangerous - it's a small space for one, meaning that if the heater produces gases or fumes you could kill yourself. It's ... a concentrated area of flammable material - sleeping bags, pillows, and possibly the tent itself depending on what it's made from.
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Tent Heater