About 220 Volt Outlets The Overall Cost.Determining the overall cost of adding a 220 Volt outlet to your home is difficult to do and depends on a bunch of factors.A short run might be done for as little as $400, while the long run might cost you closer to $1,000.If you need a panel upgrade you might spend as much as $3,000 or $4,000 to have the job completed. If you plug something directly into a 240 Volt or 220 Volt outlet it will quickly overheat.You can keep it at a safe temperature with a couple of safety precautions.What if my 240 volt outlet blows up?Difference between 220 and 240 volt outlet.If the power you are using to power your appliance is 240 Volt you will have an explosion. 220-volt Outlets.The bad news is that there is no commonality when it comes to 220-volt outlets.While most 110-volt outlets are generally the same,there are different pin configurations for 220-volt outlets. The configuration will depend on the current rating of the breaker that controls the circuit.