One other note. Height from countertop to bottom of crown molding 60" I'm told you want minimum of 30" from range top to bottom of hood. Not sure if this is accurate.

No, it doesn't look cheesy to have the hood the same size as the cooktop - many of us have it.

Generally 30" above the cooktop is the recommended height for the bottom of the hood. You could probably go as low as 28" if you had to. There are some low profile hoods that you can get so you might not have to modify your cabinet above the range. You'll need to hunt around some.

If you're planning on replacing the double oven with a single oven + Convection MW...these are two different appliances. Your double oven is "one" appliance. To fit the MW and single oven, you will need to modify the cutout in the cabinet to accommodate two appliances...There's probably a way to do it.

Also, have you considered replacing the MW and double ovens with an Advantium and single oven? The Advantium can be a second oven when needed and has the advantage of being a speed cook (faster than Convection MW) as well as a MW or Convection MW.

buehl is not quite correct. I have a convection oven/speed cook microwave from whirlpool. It is one single appliance (with one single control pad for both units.) I was looking at the Advantium but was really drawn to the more unified look of the whirlpool unit. The speed cook oven really seems to be able to do everything that the Advantium can do as well.

Here's a pic:
{{gwi:1482241}}

We did what I think you want to do.

Before we had the same MW over 30" cooktop & 30" cabinets. We went to 36" cooktop and 36" venthood. If your cabinets are modular (as ours were) then it's not too expensive. I could tell better if your cabinets were open. Basically we had (4) 24" wide cabinets w/ a 30" wide x 24" tall above the MW. We replaced (2) of the 24" wide w/ 21" wide and changed the 30" wide to a 36" wide x I think 18" tall. This gave us the req'd 30" above our cooktop for the venthood. We didn't replace any bottom cabinets, a carpenter made cut-outs in the drawers to accommodate the 36" wide cooktop.

We have an island & put a shelf in it for the MW.

Here's a few pics:

We removed our OTR and replaced it with a 30 " KA vented range hood and love it!
We used a KA slide out hood that takes up little space and that put us at 30 inches above the cook top.
We bought a microwave and added a shelf to our island and put the micro there. To me, it looks so much better.

You can also use rectangular ductwork for your hood. We have a rectangular duct due to space limitations. Also, you may need to open up the exit hole in your wall. We went from 6" to 8" diameter.

Cheesy? I don't get that, most cooktops I've seen are matched to the venthoods on width. Wider venthoods are ok & nothing wrong w/ that - a few folks on here are doing it. Our cooktop manufacturer recommended the 36" wide for our situation. Each of our cabinets were no more than $150 each.

Ok, now a pic should really be attached. If you look close enough, we used to have a 30" wide cooktop & basically same 30" MW/hood you have now (ours was black) which would have been about 18" above the cooktop.

Had before pics but IT dept found pics & purged a couple of years back.

Island pic attached

back
1st ? - is the current OTR micro on an ext wall? If so, venting would be simple & efficient, if not, you would need to figure how to properly vent - which would be either up and over to get to exterior or straight through the roof

We have 36" AG range & hood is same size - I just made sure it had enough CFM's (850) and there are not bends in ducting (which would decrease the CFM's) - Look for under cab models & be sure to check the technical specs - to determine it can work in your application - * may want your GC/carpenter - someone to determine that what you propose can actually be fitted.

It appears the sleeker the unit(hood), the better for your application - your upper cab to the left of cooktop will be the limiting factor

I'm not sure about the oven issue - I would rec similiar post on appliance forum

Good luck

Here is a link that might be useful: Zephyr hoods

The Zephyr are awesome looking hoods - especially the pro-style.

Good point about the exterior wall, I just assumed backsweat's was on an exterior but you can't tell that from the pic.

Thanks all to those that have taken time to provide feedback and post pics.

First off, I didn't intend to offend anybody with the "cheesy" question. I haven't done much research and was mostly asking about 30" over 30" (smallest size avail) would look ok. Was hoping it would be decent looking becaue that's all I've got room for unless I do a full on remodel which isn't in the cards right now. To the right of the double oven cabinets I've got about 8 inches and then a doorway.

Unfortunatly the wall is NOT an outside wall. I was assuming that the micro is vented up through the roof or up/over, but I'm not 100%. Going to dig around this weekend to figure that one out for sure.

If it's not vented, I'm pretty much S.O.L. Asides from the cabinet Modification, I was planning on doing everything myself. Have the ability to do it, but not the fortitude to deal with a 25ft HVAC run through interior walls. Moving the electric and doing a minor modifcation to move existing vent hole up would be fine.

Probably a ridiculous question, but are there any commercial/pro style looking vent hoods that circulate air and dont require actual venting out? The motivation for doing this is mostly cosmetic asides from really desiring a cooktop with more BTU's. We never cook fish inside or use heavy oil with cooking/stirfry so it's not like the hood is going to take a beating.

Pugger & Bob, thanks for taking the time to post pics. Like the nice finished look of your spaces.

backsweat...I thought I was vented outside too, and NOT. You can check it by looking in those cabinets above your micro. I specifically told my contractor (when I built this house) I wanted to be vented to the outside. I guess he didn't pay any attention to that. By the time I discovered it, it was too late to do much about it. My microwave is my vent/fan and it recirculates. Oh well its work for 9 yrs, it will be fine forever. I don't cook much anyway.

It looks as if you are NOT vented outside from the pic.