My Sears Kenmore Range Hood 55012 is ducted to the outside of my house. Yet most of the exhaust comes back out from in between the circumference of the lamps--- blowing on top of the burners when lit. Are there some type of lamps that completely enclose the gaps between the hood bulb enclosure and the bulb? Thanks!!

Call or chat with Sears customer service. (I am not posting telephone numbers directly myself due to many scammer spammers posting fraudulent phone number on FIXYA, but Sears web site gives contact information for assistance.)

https://www.searspartsdirect.com/combo/0583-1234588/kenmore-elite-range-hood-parts

It is C / Pi = 7.003" , exactly 7" for your purposes.
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some fans have a charcoal filter that needs replacing others are supposed to be vented out side by the roof or out the wall to see if the vent is going outside you will have to unmount the unit tak it down and check and see if it is conected to a duct in the celing or through the wall hope this helps

No problem Be sure the duct coming from the range hood is the same size of the duct through the roof , Or it mat be a vent that don't vent to the outside, IF so throw it out , and get a vent that vents to the outside , Or get use to smelling the odors of all your cooking inside your home

Sorry to read about your problem, I hope this helps you out.

you may have a clog, in the vent pipe, not uncommon in the winter for wild things to build nest..
their is also a air damper plate, that might be stuck, this damper prevents outside air from blowing back in

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You need to uas a 7 inch duct to duct it out. You can get all the info you need in the manual on the link below. Please give it some time to load. If you need parts you can call Sears at 1-800-4-MY-HOME.

http://www.managemylife.com/mmh/owner_manuals/2285/KENMORE-Range-Hood-L1002022?brand_name_search=233.55213.000+

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Sounds like a clogged exhaust duct or vent. If not venting properly, most dryers will turn the heat off, for safety reasons.
Go for the easy fix first. Before removing your exhaust ducts from the dryer, look for any kinks that may cause blockage. Clean out the duct of any lint or water that may have accumulated. Check the vent on the outside of the house and make sure that its not clogged and opening properly.

Bring a focal point to your kitchen by having an island range hood, combining function and elegant form. A suspended hood is also an efficient way to vent
grease, odors and smoke to the outside from a island stovetop while you cook. You can install an island range hood in just a few hours with the right tools
and knowledge.
1.Wear safety glasses and work gloves. Turn off the electricity to your kitchen at the circuit panel. Cover the circuit breaker with a piece of electrical
tape to prevent people from turning the on switch while you are at work.
2.Lay work drop cloths on your cooktop and floor to catch dust and debris. Mark the duct opening with a pencil in the ceiling, where the island hood will be
installed. Be sure the opening is centered directly above your cooktop. Cut the opening using a hacksaw.
3.Go up to the roof, using a cat's claw and hammer to remove stucco, tiles, sheathing and insulation to make way for the steel venting duct. Drop a
plumb bob down the roof, making sure the line is straight down for the ductwork.
4.Follow the manufacturer's instructions for locations, installing 2-by-2 wooden blocks in the ceiling to hold the ductwork hangers.
5.Install the venting duct from the outside of the home, down to the location of the exhaust vents on the island hood. The ducts should easily slip into each
other. Secure all the duct sections with duct sealing putty, using a putty knife.
6.Screw a roof cap on the end of the duct at the roof. Seal any openings or gaps where the roof, ceiling and duct meet with silicon sealant. Let the sealant
dry, then paint with colors matched to the surrounds.
7.Place your hood upside-down on the floor, with the fan and filter facing upward. Locate and unscrew the metal electrical box cover on the island range
hood, to expose the wiring
8.Install the hood cover to the load-bearing ceiling frame with the package hardware through the four inside mounting corner flanges on the cover.
9.Measure what will be the distance from the bottom of your hood to the cooktop; it should not exceed 30 inches for exhaust efficiency. Have a helper hold
the hood in place while you attach the hood on the hood cover using the included screws. Use a level be sure the hood is level as mounted.
10.Connect the electrical wiring by consulting the manufacturer's suggestions or hire an electrician if you are not familiar with house wiring. Tuck the wires neatly in the hood electrical box and then replace the cover, after connecting the hood wires to the wall wiring.
11.Remove the electrical tape on the circuit breaker, turn on the electricity to your kitchen and test your island range hood.

The exhaust motor was not installed properly - it has to be turned 90 degrees so that the blower openings face up instead of the front. Whoever installed it didn't read the directions:)
Unfortunately, the unit will have to be taken down from the wall to correct the motor.

"Microhood" seems to be a slang term for the "microwave hood" (hood fan or exhaust fan) which is normally part of an over-the-range microwave oven or range. But these should be available separately, as I seem to recall. I would contact home centers such as Lowe's, Home Depot (if they still exist), etc., or a local appliance store.