A 30 inch wall oven microwave combo is the right pick for a remodel where counter space is scarce and the cooktop is separate from the oven. Stacking the microwave above a wall oven in a single 30 inch cabinet column puts the microwave at a comfortable working height, keeps the counter clear, and gives the kitchen a built-in look that a freestanding microwave on the counter never achieves. After installing combos in a year of remodels and new construction projects, these five performed best on capacity, oven evenness, and microwave reliability.
Quick comparison
| Combo | Oven cu ft | Microwave cu ft | Convection | Best fit |
|---|---|---|---|---|
| GE Profile PT9200SLSS | 5.0 | 1.7 | True (both) | Best overall |
| KitchenAid KOCE500ESS | 5.0 | 1.4 | Even-Heat | Built-in feel |
| Bosch HBL87M53UC | 4.6 | 1.6 | European | Compact column |
| Samsung NQ70M9770DS | 5.1 | 1.7 | Smart + air fry | Smart features |
| LG LWC3063ST | 4.7 | 1.7 | True | Budget pick |
GE Profile PT9200SLSS - Best Overall
GE’s Profile PT9200SLSS combines a 5.0 cubic foot wall oven with a 1.7 cubic foot convection microwave in a clean stainless column. The lower oven has true convection (third element behind the fan), 10 baking modes including bread proof and dehydrate, and a precision cooking probe that holds roast temperature within a few degrees.
The microwave above has convection mode plus sensor cooking, which means it can bake a small dish or reheat leftovers based on humidity sensing rather than guessed times. Both units have full-size displays that mirror the same touch interface.
Build quality is solid. Heavy door hinges on the oven, a soft-close microwave door, and a stainless finish that matches the rest of the GE Profile line.
Trade-off: at the higher end of the combo price band, you pay roughly 30 percent more than the entry tier.
Best for: standard remodels where the combo will get daily use.
KitchenAid KOCE500ESS - Best Built-In Feel
KitchenAid’s KOCE500ESS is the combo that looks most like a true built-in. Brushed stainless face panel, glass touch controls with no protruding buttons, and a flush mount that sits exactly even with the cabinet front.
The 5.0 cubic foot oven has Even-Heat true convection and a temperature probe. The 1.4 cubic foot microwave above is smaller than most but uses the space efficiently with a low-profile turntable. Sensor cooking handles popcorn, pizza, beverage, and frozen dinners.
Trade-off: the smaller microwave cavity does not fit larger containers. Measure your biggest reheating dish before committing.
Best for: design-focused remodels, KitchenAid appliance suite kitchens.
Bosch HBL87M53UC - Best Compact Column
Bosch’s HBL87M53UC is the right combo for kitchens where the wall oven column has to share a wall with limited cabinet height. The combined unit measures roughly 50 inches tall, the shortest of the group. Inside, the 4.6 cubic foot oven has European convection (three elements) and the 1.6 cubic foot microwave above has sensor cooking plus convection.
Build is the highest in the group. Heavy gauge stainless, glass touch controls, and the Bosch SoftClose hinge on the oven door (closes itself for the last two inches).
Trade-off: smaller oven cavity than the GE Profile or Samsung. Half sheet pans fit but only with the rack at certain positions.
Best for: shorter cabinet columns, German build quality fans.
Samsung NQ70M9770DS - Best Smart Features
Samsung’s NQ70M9770DS adds WiFi control, smart phone monitoring, air fry mode in the microwave, and a flex duo oven that splits into two zones with a removable divider. The 5.1 cubic foot oven is one of the largest in the group, and the 1.7 cubic foot microwave includes air fry and convection.
The flex duo oven is genuinely useful. Run a 400 degree pizza on top and a 250 degree slow roast below at the same time. Few wall ovens at any price offer this.
Trade-off: the smart features need stable WiFi. When WiFi drops, the touch panel still works but loses the remote control benefits.
Best for: smart home kitchens, families that cook two dishes at different temperatures.
LG LWC3063ST - Best Budget Pick
LG’s LWC3063ST is the value combo. A 4.7 cubic foot true convection oven, a 1.7 cubic foot convection microwave, and basic stainless finish. The oven uses ProBake convection (fan at the back rather than the top), which improves evenness on the bottom rack.
The build is fine for the price. The oven door hinge is decent, the microwave handle is metal rather than plastic, and the touch controls are responsive.
Trade-off: not the deepest oven cavity, plastic-cored knobs (where the others use metal), and the touch panel is smaller than the GE Profile or Samsung.
Best for: budget remodels, second kitchens, anyone who wants the combo look without paying premium.
How to choose the right 30 inch wall oven microwave combo
Match oven capacity to cooking volume. 4.6 cubic feet is fine for one or two people. 5.0 cubic feet handles a family of four. Anything over 5.0 fits a half sheet pan flat (without turning diagonally).
True convection is worth the upgrade. A third heating element behind the fan bakes evenly across two racks. If you bake bread, cookies, or sheet pan dinners, pay for true convection.
Microwave convection is useful in combos. When the main oven is in use, the microwave can bake a side dish. Convection microwave mode is a meaningful upgrade.
Check the cutout dimensions before framing. Every brand has slightly different cutout requirements. Print the installation manual from the brand website and verify before the carpenter cuts the cabinet.
Planning the install
A 30 inch wall oven microwave combo needs:
- A 30 inch wide cabinet with a 28.5 inch wide cutout
- 50 to 53 inches of vertical cutout space (verify in manual)
- A dedicated 30 or 40 amp 240V circuit for the oven
- A dedicated 20 amp 120V circuit for the microwave
- A junction box accessible from the back or side
The two circuits enter the cabinet from the back and connect to the combo unit during installation. An electrician runs the circuits before drywall closes. The combo itself slides into the cutout and screws to the cabinet face frame.
Most combos weigh 200 to 250 pounds, which is too much for one person to lift safely. Plan for two installers and a furniture dolly.
When a combo is the wrong choice
A combo is the wrong choice in two situations.
First, if you cook for large groups often. A 5.0 cubic foot oven is fine for a family of four but tight for a Thanksgiving turkey plus full set of sides. A 30 inch double wall oven (two ovens stacked) gives you 10 cubic feet of total capacity and is the right call for entertainers.
Second, if you replace a microwave more often than every 8 to 10 years. The microwave half of a combo fails before the oven half (microwave magnetrons have shorter service life than oven elements). When the microwave fails after warranty, the entire combo usually needs replacement because matching microwaves from the original manufacturer become scarce after a few years.
For related buying guidance, see our best 30 inch slide in gas range guide and the best 30 inch under cabinet range hood article. Our full evaluation approach is documented in our methodology.
A 30 inch wall oven microwave combo is the right call for a remodel where counter space matters and the wall oven cutout is already in the plan. The GE Profile is the safe overall pick, the Samsung is the smart features choice, and the LG is the budget option that still hits the look.
Frequently asked questions
Is a wall oven microwave combo worth the extra cost?+
Yes for kitchens where counter space matters and the wall oven cutout is already planned. A combo unit saves the cabinet space a separate microwave would occupy, places the microwave at a comfortable height, and lets both units share a single 30 inch column. The downside is replacement cost. If the microwave fails after warranty, replacing it usually means swapping the entire combo, since matching microwaves from the original manufacturer become scarce after a few years.
What size cabinet do I need for a 30 inch combo?+
A standard 30 inch wall oven cabinet with a cutout roughly 28.5 inches wide by 50 to 53 inches tall, depending on the brand. Verify the exact cutout dimensions in the installation manual before framing. Combo units stack a 5 to 6 cubic foot oven with a 1.7 to 2.1 cubic foot microwave drawer or trim kit microwave above. Total height of the combo is typically 50 to 53 inches.
Can a wall oven and microwave share one circuit?+
No. A 30 inch wall oven needs a dedicated 30 or 40 amp 240V circuit and the microwave portion needs a dedicated 20 amp 120V circuit. The two circuits run through the same combo unit but connect separately at the breaker panel. An electrician handles this during installation. Total power draw on a combo with both running can exceed 6500 watts, which is too much for any single circuit.
How is a combo different from a microwave drawer plus separate wall oven?+
A combo is one factory-assembled unit with both oven and microwave in a single trim. The two units share an electrical box and look like one piece. A microwave drawer plus separate wall oven is two installations stacked or placed separately, with the drawer typically installed below the cooktop and the oven elsewhere. Combos look more built-in. Drawers offer more flexibility but cost roughly the same total.
Do combo microwaves have convection?+
Most premium combos include a convection mode in the microwave that lets it bake and roast like a small oven. This is useful when the main oven is already in use or for small dishes that do not warrant heating up the full oven. Entry-level combos may have microwave only with sensor cooking. Check the spec sheet. Convection microwave in a combo is a meaningful upgrade for small households.
Priya Sharma
Priya Sharma writes for The Tested Hub.