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Installing a Range Top Exhaust Fan
Nothing helps clear the air in your kitchen quite like an exterior venting
exhaust fan.
Installing one can be simple with the help of a Dremel Multi-Max.
For this project we'll be using a Multi- Max MM40 and the
MM452 Wood/ Drywall & Metal Saw Blade.
The MM452 can be used on any Multi-Max tool but we suggest using
a high-performance tool to cut through thick walls substrates like OSB
or plywood.
Mark the location of the vent.
Our exhaust fan came with a measurement template making the process
easy.
Make sure your clear of electric and gas lines before cutting the drywall.
Remove the cut drywall and underlying insulation to expose the exterior wall.
Be careful when working with insulation and seek help if you have questions
about safe handling measures.
It's easiest to cut the exterior wall from outside rather than through the
vent. Locate your cut on the exterior wall by drilling holes in the corner
of the vent hole
from the inside.
Ensure there's nothing on the outside of the house
that you could hit with your drill before getting started.
Begin cutting the exterior wall by cutting siding and vapor barrier.
Cutting thick exterior walls substrate is a challenging task.
Let your school
not your muscles do the work.
Despite the challenge, the MM40's 2.5 amp motor and
electronic feedback monitoring system are more than capable of handling this task.
With the vent hole complete
finish installing vent hardware in the exhaust fan.
Here's some other thoughts on installing a range top exhaust fan.
Install flashings and caulk on the exterior of the vent
to seal against moisture.
Adhere to local codes and take all necessary safety precautions when wiring
your new ranger.
We did encounter a stud in the path of our vent.
If that happens you the stud can be relocated.
Find instructions on how to do this and how to install an exterior venting range
hood on a non exterior wall online.