Advanced Planning Guide

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Chimney hoodsProfessional hoods
Custom hood insertsTelescopic
downdraft vents
Professional vent hoods
Restaurant-style, tapered- and straight-sided hoods
Select a Professional hood with straight or tapered sides, or a
dramatic restaurant-style hood to match the width of the range,
rangetop or cooktop. All Professional hoods are available in 48",
36" and 30" widths.
• All models can be installed onto a wall or beneath a soffit.
Decorative duct covers are available for all models. The duct
cover conceals the ductwork running from the top of the hood
to the ceiling or soffit. Duct covers are available in 6" or 12"
heights. Stack one or more duct covers to reach your ceiling
height.
Under-cabinet hoods
These vent hoods are designed to be installed onto a wall or
beneath a soffit or cabinet.
• Install these hoods 24" minimum to 36" maximum above the
cooking surface.
This vent hood can be installed over any 30" Monogram
Professional rangetops or ranges.
Island hoods
Both models are shipped with a support frame and duct cover
for ceiling heights of 7'11" up to 8'5".
• Accessories are available to reach ceiling heights from
8'6" to 10'4". These accessories include telescoping support
frames and decorative covers.
• Optional accessories must be ordered with the hood and be
on-site before final framing and wall finishing.
• A mounting template is provided with each hood to help
accurately locate the hood above the cooking surface and to
locate the mounting frame and screws.
• For a finished appearance, a top cover is supplied with both
hoods. Install the top cover whenever the top of the hood will
be visible.
Structural support
Restaurant-style, tapered- and straight-sided hoods
All Professional hoods weigh over 100 pounds; therefore adequate
structural support must be provided. Hoods must be secured to
vertical studs or to studs in the soffit.
• It is strongly recommended that the vent hood and duct
cover(s) if used, be on-site before final framing and wall
finishing. This will help to accurately locate the ductwork
and electrical service.
• Final installation will be much easier if the hood is installed
before the range, rangetop or cooktop underneath.
Island hoods
These vent hoods are heavy. Adequate structural support must
be provided. The ceiling structure must be capable of supporting
the weight of the hood and any inadvertent user contact loads
(approximately 300 lbs.).
Ductwork planning
Restaurant-style, tapered- and straight-sided hoods
These vent hoods are equipped for 10" round ductwork. For best
performance, use 10" round ductwork on the 48"-wide hoods.
36" and 30" hoods may be transitioned to 8" round.
• Hoods may be vented vertically through upper cabinets, soffit
or ceiling. The blower outlet is 8-1/8" x 8". A duct transition to
10" round with damper is supplied for vertical exhaust. Use
locally supplied elbows to vent horizontally.
• Plan the shortest and straightest route for venting exhaust to
the outdoors.
• Use metal ductwork only.
• For satisfactory performance, duct run should not exceed 150
feet equivalent length for any duct configuration. Refer
to the duct fittings chart in the installation instructions.
• Install a wall cap or roof cap with damper at the exterior
opening. Order the wall or roof cap and any transition needed
in advance.
Under-cabinet hoods
• This vent hood is designed to be installed beneath a cabinet
or beneath a cabinet mounted to a soffit.
• This hood is designed for 8" round ducting. The 8" round duct
can transition to 3-1/4" x 10" or 3-1/4" x 12".
• Recirculating option requires the use of 3-1/2" louvered riser.
• Plan the route for venting exhaust to the outdoors
considering any transitions you may require.
• Use locally supplied ducting to vent horizontally through the
rear wall or vertically through the ceiling.
• Use the shortest and straightest duct route possible. For
satisfactory performance, duct run should not exceed 100'
equivalent length for any duct configurations.
• Refer to “Duct Fittings” chart to compute the maximum
permissible length for duct runs to the outdoors.
• Install a wall or roof cap with damper at the exterior opening.
Order the wall or roof cap and any transition and length of
duct needed in advance from a local hardware store.
• Determine the exact location of the vent hood.
• Wall or ceiling duct must be projected out at least 1" for duct
connection.
• For better air flow results, use rigid metal ductwork.
Ductwork planning for recirculation mode
All parts are included to install in recirculation mode.
Mounting for adequate support
• The hood must be secured to vertical studs in the wall. See
the Wall or Ceiling and Cabinet Preparation section for vented
or recirculation installation.
• We strongly recommend that the vent hood be on-site to
accurately locate the ductwork and electrical service.
• Installation will be easier if the vent hood is installed before
the cooktop and countertop are installed.
Advance planning for professional hoods