There are some types of electric stoves, but you have to weigh some important features.
The model is very similar to the stoves, only with the difference of the mouth. Some models have common resistors (spiral springs) and other resistance “shielded”. This is tougher, for example the water drops or sudden impacts that take the common resistors if you leave. Some models of common resistance have a canopy of protection exactly for this purpose.
In addition to requiring that there is electricity in the camping, few of them provide enough power, slowing your dinner and causing obstacles to your neighbor.
Most campsites electricity 220V provides, so I prefer this equipment voltage. Hardly your transformer will have more or less power 1000W and if using an extension cord, which is always equal to or thicker wire of own stove.
Usually the camps provide low power, the high quota in place. This will slow down more to your meal. In the vast majority of establishments, it is forbidden the use of pure resistance.
If none of these impediments exist, the performance of electric stoves are very efficient, without taking into account, of course, the idea of energy saving. Voltage 110V appliances usually require an electrical current in the range of the 4A to 5A (Amps). If it were, this falls to 220V 2-2.5.
Another technical question to be raised here is the difference of voltage ratio. Some campgrounds provide electricity to 110V. In the case of using electric stoves 220V at the outlet 110V, there won’t be any danger of damage to the product, but the heat generated by it will not be only half of your normal power and Yes 1/4. In short, a stove 2000W power 220V 500W will only if plugged in 110V. Obviously we must emphasize that connected at 220V 110V equipment will have their resistors burned. Whether or not armored.