We have a kitchen island with a gas cooktop and telescoping vent fan behind the cooktop. I bought an induction cooktop for a new house we are now not going to build. I want to have the induction cooktop installed in place of the gas (with new cabinets and countertop). There is 110 wiring to the cooktop and vent. The circuit breaker box is on the outside wall of our attached garage, about 50 feet from the cooktop (wiring comes up from the floor and the ceiling of the basement underneath is finished but is a storage room).

Can the 220 wiring be threaded through the conduit and the 110 wiring removed? I wouldn't need 110 for anything else on the island as I don't plan to have the vent fan reinstalled (I rarely use it and have high ceilings and lots of open area).

I'll be calling electricans for estimates but want to know if this is possible so I don't get a snow job. Thanks.