I currently have a stacked washer and dryer in my apartment condo. The outlet is 110volt for my dryer. I would like to purchase a better dryer for the apartment condo but I need to upgrade the outlet to a 220 volt. My circuit breaker is on the same wall as the 110 volt outlet for the dryer. My question is how hard would it be to install a 220 volt outlet and what do you think the cost would be?