Clearance From Microwave Bottom To Stovetop

 
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Old 04-12-2012, 07:23 PM   #1
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Clearance From Microwave Bottom To Stovetop


Is there anything in the code that states a minimum height clearance from the bottom of a vent hood to a stovetop? I know usually you follow vent/microwave manufacturer instructions, but that isn't the case here. I'm asking because a client asked me to look in their kitchen about replacing a beat up drawer and I noticed their microwave with vent (it is vented outside) is very close to the stovetop. I'd say it is about 14" off the stovetop. Electric stove. The bottoms of their wall cabs are 16" off countertop. I thought I should mention this to them, as it probably would cause an insurance problem if there was ever a fire. I wanted to be able to tell them with some authority what the minimum should be. This was obviously added in down the road some years ago by someone who didn't know any better. Thanks, Nick.
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Old 04-12-2012, 07:28 PM   #2
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Re: Clearance From Microwave Bottom To Stovetop


Yws there is.

IRC M1901.1 Clearances. Freestanding or built-in ranges shall have a vertical clearance above the cooking top of not less than 30 inches (762 mm) to unprotected combustible material. Reduced clearances are permitted in accordance with the listing and labeling of the range hoods or appliances.

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Old 04-12-2012, 07:30 PM   #3
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Re: Clearance From Microwave Bottom To Stovetop


And there is another code, I believe M1901.2 that states you follow the MFG instructions

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Old 04-12-2012, 07:31 PM   #4
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Re: Clearance From Microwave Bottom To Stovetop


a microwave can be 18" above a stove, but inspectors usually wont say anything if its 16" or more. under 16" and it gets ridiculous.
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Old 04-12-2012, 08:03 PM   #5
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Re: Clearance From Microwave Bottom To Stovetop


ours are normally built to be 20" clear minimum, cab bottoms are 18" off contertop and micro is burried 2"
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Old 04-12-2012, 08:27 PM   #6
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Re: Clearance From Microwave Bottom To Stovetop


The metal frame on the microwave is not considered a combustible.
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Old 04-12-2012, 08:36 PM   #7
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Re: Clearance From Microwave Bottom To Stovetop


Quote:
Originally Posted by Dan_Watson View Post
Yws there is.

IRC M1901.1 Clearances. Freestanding or built-in ranges shall have a vertical clearance above the cooking top of not less than 30 inches (762 mm) to unprotected combustible material. Reduced clearances are permitted in accordance with the listing and labeling of the range hoods or appliances.
That was only a problem back in the days of wood microwaves.
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Old 04-12-2012, 09:33 PM   #8
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Re: Clearance From Microwave Bottom To Stovetop


So, I'm reading all sorts of answers. I would think 20" is a reasonable number to a noncombustible surface. I know that 14" makes the back burners pretty much useless. I also would say that if there was a fire that homeowners insurance probably wouldn't cover them because it is so damn close. So, is it safe to assume that 18" or 16" is the absolute bare minimum? I guess next step is to find the microwave brand and model number and find some install instructions or call the company for an answer. Thanks, Nick.
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Old 04-12-2012, 10:08 PM   #9
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Re: Clearance From Microwave Bottom To Stovetop


If you can't get a tamale pot in between, then it is too close.
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Old 04-12-2012, 10:12 PM   #10
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Re: Clearance From Microwave Bottom To Stovetop


Quote:
Originally Posted by Inner10 View Post
That was only a problem back in the days of wood microwaves.
Yws there is.

IRC M1901.1 Clearances. Freestanding or built-in ranges shall have a vertical clearance above the cooking top of not less than 30 inches (762 mm) to unprotected combustible material. Reduced clearances are permitted in accordance with the listing and labeling of the range hoods or appliances.

That was the important part.

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