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Short Summary
Main recommendation: Before installing a new kitchen hood fan, measure the opening and have the appliance mounted and ready before calling a licensed electrician to finish the wiring. The host found an old, improperly wired setup in an older house and chose to remove the fan and bring in an electrician rather than work on live wiring himself. The rest of the video walks through checking fit, preparing the fan, and marking the mounting holes.
Key Points
- Measure the cutout first: the host's opening was 29 3/4 inches for a unit labeled 30 inches, and he noted that a standard 30-inch hood usually fits a 30-inch stove space.
- The existing wiring was unsafe: the host found a blue 3-wire cable with a cut red line, duct tape, and live power, and said it was likely installed by a homeowner rather than a licensed electrician.
- Electrical work should be handled by a licensed electrician, especially when the wiring source and breaker are unclear.
- Prepare the fan before the electrician arrives so the electrician only needs to make the final connection.
- Check ventilation details, such as removing the damper tape, because a taped damper can cause poor airflow.
Details Worth Noting
- Concrete instructions:
- Measure the existing opening before opening the new unit's packaging, and confirm the new hood's width against the cutout.
- Remove the separation shield to expose the mounting screws, then remove the existing hood.
- Check the wiring: if you cannot identify the breaker or the source of the wire, do not reconnect it yourself; call a licensed electrician.
- Install the hood fan in place with its wiring ready, then have the electrician connect the wiring, rather than asking the electrician to install the appliance.
- Select rear or top venting: the unit includes a rear-vent adapter and a top-mount plate; the host kept the rear-vent option and discarded the top plate.
- Protect the wire with the plastic grommet/cap, because metal edges can wear through insulation and energize the hood.
- Remove the tape from the damper so airflow is not blocked; the host noted he's often been called to fix poor airflow that turned out to be caused by leftover damper tape.
- Mark the mounting holes with the fan in position; the host measured 30 and 11 inches, 3 and 11 inches as reference marks, adding a quarter inch to account for the new 6-inch-deep unit sitting over the tile (versus the old 4 1/4 inch deep unit).
- Hold the fan with two screws while adjusting the rest, then tighten them.
- When changing halogen bulbs, use the suction-cup tool or wear gloves, because skin oil on the bulb can cause it to overheat and stop working.
- The host noted that the homeowner's old wiring included a cut red wire and no grommet, and that the exact source of the wire was unknown.
- Local rules vary: the host said homeowners in Ontario should check their municipality or county before doing their own electrical work.
- The old fixture was a glass light with dimmer, and the host suggested cleaning or replacing such fixtures about every 10 years because grease builds up.
Bottom Line
Do the mechanical installation yourself if you are comfortable, but leave any unclear or live electrical connections to a licensed electrician, and have the hood ready to plug in when they arrive.
