Choosing a 120 or 220 v Air conditioner
Help! live in an apartment building in NYC and have the option of installing either a 120v/10 amp or 220v/4.5 amp air conditioner. The apartment has both 120 or 220 wiring. Both units cost the same. Which would be more efficient and save me money in electric bills? Consider that the unit will only get about 4-5 months of use per year.