Owner’s manual
Can you replace a built-in microwave with a countertop?
Yes, you can replace a built-in microwave with a countertop model, but we only recommend doing it if the cabinet opening can provide proper support, electrical supply, and ventilation. For Kenmore model 72166993800, the manual calls for free airflow and at least 4 inches of clearance on the top, sides, and back. See the 72166993800 owner's manual for placement and ventilation guidance.
What to check before you swap
- Ventilation and clearances: Do not enclose a countertop microwave tightly; blocked openings can cause overheating.
- Stable support: The microwave must sit level on a solid shelf or platform that can handle the unit’s weight.
- Electrical circuit: This model is intended for a 120V, 60 Hz supply and the manual specifies a dedicated 20-amp circuit.
- Cord routing: Keep the cord dry, unpinched, and not hanging over an edge.
- Heat sources: Do not place a countertop microwave over a range, cooktop, or other heat-producing appliance.
Built-in opening vs countertop needs (quick comparison)
| Item | Built-in microwave setup | Countertop microwave needs (like 72166993800) |
|---|---|---|
| Airflow | Often ducted or designed-in | Open airflow around the cabinet opening |
| Mounting | Brackets/trim kit | Sits on a flat surface, not “hung” in place |
| Clearances | Defined by trim kit | Typically needs space on top, sides, and back |
| Service access | Front access may be limited | Needs access to outlet and rear vents |
Safe ways to make it work
If you are using the old built-in cavity as a “garage” for a countertop microwave, we recommend these practical steps:
- Add a vented shelf or leave the back open so hot air can escape.
- Maintain at least 4 inches around the top, sides, and back (or more if your cabinet allows).
- Use a properly grounded outlet on a dedicated circuit.
- Avoid extension cords; if one is used, it must be a grounded 3-wire cord with an equal or higher electrical rating.
Why it matters
Countertop microwaves are designed to cool themselves with airflow around the cabinet. When you place one into a tight built-in opening, heat can build up, cooking performance can suffer, and internal components can fail sooner.
Last updated: January 2026
What is the standard size of a countertop microwave?
For a countertop microwave, “standard size” usually means a mid-size unit around 1.0 to 2.2 cu. ft. In the specific case of Kenmore model 72166993800, the manual lists overall dimensions of 19 1/4 in. W x 15 3/8 in. H x 17 1/4 in. D with a 1.1 cu. ft. cavity capacity (a common countertop size). See the 72166993800 owner's manual for the exact specifications.
Typical countertop microwave size ranges
Most countertop microwaves fall into these common ranges:
- Capacity: about 1.0 to 2.2 cu. ft.
- Width: about 21 to 25 in. (many compact models are narrower)
- Height: about 12 to 15 in.
- Depth (door closed): about 16 to 20 in.
Kenmore 72166993800 size and clearance guidance
The manual for Kenmore 72166993800 also calls out placement and airflow needs:
- Place the microwave on a flat, stable countertop
- Keep at least 4 in. of space at the top, sides, and back for ventilation
- Do not place it over a range, cooktop, or other heat-producing appliance
Quick reference table
| Item | Typical countertop range | Kenmore 72166993800 (manual spec) |
|---|---|---|
| Capacity | 1.0 to 2.2 cu. ft. | 1.1 cu. ft. |
| Width | 21 to 25 in. | 19 1/4 in. |
| Height | 12 to 15 in. | 15 3/8 in. |
| Depth | 16 to 20 in. | 17 1/4 in. |
Why it matters
Getting the right size helps you avoid blocked vents, overheating, and poor performance. It also ensures the microwave fits your countertop space and still has the airflow clearance the manufacturer requires.
Last updated: January 2026
What size is a Kenmore Elite microwave?
For the Kenmore countertop microwave model 72166993800, the overall exterior size is about 19 1/4 in. wide x 15 in. high x 17 1/4 in. deep, and the oven cavity capacity is 1.1 cu. ft. For exact placement clearances and setup details, use the 72166993800 owner's manual.
Dimensions and capacity for model 72166993800
These are the key size specs you typically need for a countertop cutout, cart, or shelf:
- Overall dimensions (W x H x D): 19 1/4 in. x 15 in. x 17 1/4 in.
- Oven cavity dimensions (W x H x D): 14 1/4 in. x 8 7/8 in. x 13 1/4 in.
- Capacity: 1.1 cu. ft.
- Placement clearance: allow at least 4 in. at the top, sides, and back for ventilation
| Spec | What it means | Why you care |
|---|---|---|
| Overall dimensions | Outside size of the microwave | Confirms it fits your countertop space |
| Cavity dimensions | Inside cooking space | Helps you judge dish and plate fit |
| Capacity (cu. ft.) | Volume rating of the cavity | Quick comparison vs. other microwaves |
How to measure your space before buying or moving it
- Measure the width, height, and depth of the spot where the microwave will sit.
- Add space for the power cord bend behind the unit.
- Keep the microwave on a flat, stable surface (countertop or microwave cart).
- Do not place it over a range, cooktop, or other heat-producing appliance.
Why it matters
Microwaves need airflow around the cabinet to prevent overheating and nuisance shutoffs. Using the correct overall dimensions plus the recommended ventilation clearance helps the Kenmore 72166993800 run safely and heat consistently.
Last updated: January 2026
