Dedicated means no other outlets on the circuit. The outlet behind the stove is likely on the kitchen counter circuits, and using these for lighting of a microwave that is not sitting on the counter is not allowed. You need to install a new 20 amp circuit that has a single duplex receptacle for the microwave. The outlet can be in a cabinet (or in the sell behind a cabinet) but the cord cannot be run in a concealed location (like between a cabinet and the wall). Putting the receptacle in the cabinet avoids having it be considered a wall-counter receptacle that requires GFCI protection.

tednv, we have this combo and it's on our "get rid of" list. Now, your situation may be much different than ours, but here's why we want things to change here: This kitchen was originally (when we moved in in December of 2006) on an over-booked electric box. We decided that taking some strain off of the box by splicing from the fireplace gas line was a great idea (which it was!). We even spliced again a few weeks ago to have permanent gas line for an outdoor grill because of it. But when keeping a small OTR hood/micro combo over gas? Probably not a good idea. See that window? Yeah, about that...it's the only window out of 29 in the house that was never replaced by the previous owners (not that there's anything wrong with that, we knew what we were getting into with this older home, but I digress...). That's an original 1930-at-some-point-painted-onto-the-window-frame window. It offers no other ventilation to the kitchen. Here's another thing: we cook. A lot. Stinky stuff. Things that would make your mother cringe (I KID!) We do, however, cook chili and Low Country Boils often for crowds (they, to put it delicately, stink to high heaven for days afterward). Oh, and yes, our OTR is vented to the outdoors. If ventilation is what you are looking for, then look into other alternatives. I (half-jokingly) said in another thread the other day that the OTR was good for two things: melting butter and keeping the time, and I kinda mean it. Hey, we had a combo in our townhouse and never had issues (of course, everything was on an electric system there). Personally, I wouldn't recommend it if you're remodeling or starting from scratch. I'd much rather keep the gas range and spend some extra dollars on a decent range hood that can handle the grease, heat and odors that come from a stove (especially a gas range), but that's just me. Everyone and every locale is different, though. What works for you and your bank account is what matters, ultimately. Here's my lovely OTR combo and (non-working) window:

Correction - there are actually 36" from top of range to bottom of cabinet. If I get the "hated" OTR (e.g. Viking) there would be about 20 inches between the bottom of the MW and the gas range top. There is a window in the kitchen (but not next to the range). I sacrificed a counter to make an Eat In area. So I am sort of married to this OTR MW concept instead of a hood. I would like to have a pro style range, because it's what I am used to from my previous place. But with the MW clearance, I am concerned. I am not finding consistent clearance requirements from the Viking range and Viking OTR MW installation documents online. So, I should rephrase the question: is 36" between top of pro-style range and bottom of upper cabinets sufficient? Thanks!

I have a Kenmore Elite gas range and OTR microwave. While I am not impressed with my Kenmore Elite refrigerator or dishwasher, I like the range and microwave very much. I went through a microwave every other year, it seemed, but this SS Kenmore Elite seems to be working strong for four or five years. The range has five burners and the oven is accurate, but the print by the knobs is wearing off. I am going to have to remember what knob starts what burner. It works great otherwise, although this is the first gas range I have had. I may be in elation about having gas vs. electric. I can say Sears service sucks!