Alternate Suggestion:
It would, of course, be possible to replace the OTR microwave with a good-quality vent hood, which would pay dividends in both fume extraction and safety - a lot of OTR microwaves are of horrible quality and aren't particularly safe.
But that leaves the question of the microwave - what to do with it besides leaving it on a counter?
One possibility is the custom built-in trim kits produced by Micro Trim, Inc. This company makes trim kits for
any microwave, old or new, in a variety of finishes. They can also make filler kits to make a 24-inch wall oven fit a 27-inch space. Their finish selection makes it possible to match pretty much any microwave's finish.
This means that an in-cabinet installation is possible for any microwave, getting the unit up off the counter. It also means that a clean, built-in look is achievable even if you have, say, a vintage Radarange.
You're the only one who can say if this option has any bearing on your situation, but I thought I'd mention it. Not many people know about Micro Trim.
P.S.: They make filler kits for cooktops and slide-in ranges, too - so if you're thinking about an odd-size vintage unit, this is The Source. Here's a linky:
Custom trim or fill kits for Microwaves, cooktops, wall ovens, ranges, fridges, coffee makers, and more. Call (800) 338-8746 today!
www.microtrim.com
