I have an 900 watt emerson microwave that looks similar to this one:
It weighs about 30 pounds and the outside dimensions are about 19" (W) x 16" (D) x 12" (H).
We normally have it sitting on the kitchen counter space but my significant other would like it put in a more discrete location and suggested moving it to a semi-permanent location in the cupboard shelf.
I'm reasonably certain that it'll fit in the shelf and am confident that the shelf could hold the weight (and any heavy items we cook) but I'm concerned about ventilation. The manual says:
Ventilation: Do not block air vents. If they are blocked during
operation, the oven may overheat and eventually cause oven failure.
For proper ventilation, keep three inches of space between the oven’s
top, sides, rear and the area where the unit is to be installed.
The shelf would have that 3" breather room but not much more. Does that sound OK? Am I worrying over nothing? Is there anything else I need to be conscious of here?