I am thinking about installing a HVAC / central heating & air system in my house. I was told by an electrician who came by that I must upgrade my wiring to 220v in order to use an HVAC system… I am a bit skeptical as to whether this is really required or if I’m being sold on extra work. Was hoping anybody with insight or experience here with HVAC systems/installation could chime in.
A handyman that is helping with other work on the home advised me to have electrician come by to upgrade the fusebox to a 200amp box (currently 100amp) to accommodate an HVAC system.
I called up an electrician who came by to look things over and told me I must use 220v with an HVAC system. His description seems involve more work/costs than I imagined, including having someone from city come out fiddle with the power meter or something so I can use 220v.
I am a bit skeptical on the advice that I must have 220v wiring. I don’t see why I cannot simply use 110v wiring… I know the basics that volt*amp = energy used, and you can increase the energy supplied/used if you increase the amps.
Do residential HVAC units require 220v for operation? If not, is there a significant advantage to selecting a unit and installation that uses 220v?
Home is ~900sq ft, 8 ft high ceilings
2 bed / 2 bath
I think I need a 1.5-2 ton capacity unit (if the unit capacity matters) for my location (California)
Probably use 3 vent openings (two bedrooms and a living room)
Thanks for any help! I don’t want to be ripped off or oversold on services I don’t need. I’m hoping to do a bit of learning on the topic before trying to call another “professional” for a quote.