A built-in convection microwave can save cabinet space while giving you more ways to cook than a standard microwave alone. The models below add features such as broiling, air frying, sensor cooking, or soft-close doors, but they differ in installation needs and cooking options. Compare the listed dimensions and electrical requirements with your kitchen before choosing.
Quick Comparison
| Product | Key cooking features | Notable details | Best suited for |
|---|---|---|---|
| KoolMore 24-Inch Built-In Convection Oven and Microwave Combination | Microwave, convection, broil | Soft-close door, double-layer glass | Shoppers who value a quieter close and a straightforward oven-microwave combo |
| ThermoMate 24-Inch Microwave and Convection Oven Combination | Microwave, convection, broil, sensor cooking, reheat, defrost | 1.6 cu. ft.; reversible turntable and wire rack | Those who want several cooking modes and included accessories |
| AAOBOSI 24-Inch Built-In Microwave Convection Oven | Microwave, convection, broil, air fry, sensor cooking | 1.6 cu. ft.; listed cabinet cutout dimensions | Home cooks interested in air-frying and preset programs |
| KoolMore Reserve Microwave Convection Oven with Air Fry | Microwave, convection, air fry | 20-amp NEMA 5-20P plug; three-year parts-and-labor warranty listed | Shoppers looking for a 3-in-1 appliance who can meet its electrical requirements |
Our Picks: Best Built In Convection Oven Microwave Combination reviews
1. KoolMore 24-Inch Combo: A Simple Choice with a Soft-Close Door
This KoolMore combines microwave cooking with convection baking and broiling in a built-in format. Its listed microwave power is 1,000 watts, and the convection system uses top and bottom heating along with fans to circulate hot air. That gives you options for quick reheating as well as cooking foods that benefit from dry, moving heat.
The double-layer glass door is designed to help keep the exterior cooler, while the soft-close mechanism helps prevent slamming. Reinforced hinges are specified to support up to 66 pounds on the open door, which can be useful when moving cookware in and out. Treat that as a support feature, not as a reason to leave heavy items on the door longer than needed.
Compared with the other picks, this model keeps the feature set focused: it offers microwave, convection, and broil functions, but the supplied details do not list air frying or a range of sensor programs. That may suit you if you want a dual-function appliance without prioritizing extra cooking modes. Check the installation instructions and electrical requirements before buying, since cabinet fit and wiring compatibility are essential for any built-in unit.
Pros:
- Combines microwave, convection, and broil cooking
- Soft-close door helps reduce slamming
- Double-layer glass is designed to help keep the exterior cooler
- Reinforced hinges are specified to support up to 66 pounds on the open door
Cons:
- The supplied details do not list air-fry or sensor-cooking modes
- Check cabinet fit and installation requirements before ordering
Verdict: Choose this KoolMore if you want a built-in microwave and convection oven with broiling, a soft-close door, and a relatively focused set of cooking functions.
2. ThermoMate 24-Inch Combo: Flexible Modes and Included Accessories
The ThermoMate is a 1.6-cubic-foot built-in microwave and convection oven with a broad set of listed modes. These include microwave cooking, convection, broiling, sensor cooking, reheating, defrosting, and rapid preheating. Its listed output is 1,000 watts for microwave cooking, with separate 1,700-watt convection and 1,750-watt broil elements.
The included ceramic turntable can rotate in either direction, and a wire rack is supplied for convection cooking and grilling. The manufacturer describes different rack positions for baking or roasting versus grilling. Its double-layer glass door is intended to help retain heat and isolate high-temperature steam. The listed product dimensions are 23.4 by 17.9 by 22.4 inches, and it specifies 120 VAC, 60 Hz; confirm the full installation requirements and cabinet opening before purchase.
This model offers more named cooking modes and included accessories than the first KoolMore pick. It may be a good fit if you expect to use the oven for more than basic reheating and want a rack and turntable in the box. Its main limitation is that the supplied details do not list an air-fry function, which the two AAOBOSI and KoolMore Reserve options do.
Pros:
- Includes microwave, convection, broil, sensor, reheat, and defrost modes
- Comes with a reversible ceramic turntable and wire rack
- Lists separate power figures for microwave, convection, and broil cooking
- Rapid preheat is among the stated functions
Cons:
- The supplied specifications do not list air frying
- Its listed dimensions should be checked carefully against your cabinet opening
Verdict: The ThermoMate is a strong option if you want multiple cooking modes and included accessories, but compare its installation dimensions with your available space before deciding.
3. AAOBOSI 24-Inch Combo: Air Frying and Sensor Programs
This AAOBOSI is a 1.6-cubic-foot built-in microwave with convection, broil, and air-fry functions. Its listed 1,000-watt microwave system has ten power levels, so you can adjust microwave output for different foods. The listed cooking programs also include sensor cook and sensor reheat, along with presets for items such as pizza, popcorn, and beverages.
The combination of air frying and convection may help you handle more cooking tasks without adding a separate countertop appliance. A halogen interior light and insulated door glass are intended to make it easier to see food while it cooks. The stainless-steel exterior and coated metal interior are described as wipe-clean surfaces, and a child lock is included.
One practical advantage is that the supplied data gives both product dimensions and a required cabinet cutout: the product measures 23.82 by 22.26 by 19.49 inches, while the stated cutout is 22 11/32 by 17 13/16 by 23 1/4 inches. Check those figures against the installation guide and your cabinet measurements rather than relying on the “standard 24-inch cabinet” description alone. Compared with the ThermoMate, the AAOBOSI adds air frying; compared with the KoolMore Reserve, its supplied details give more information about capacity, presets, and cutout size.
Pros:
- Combines microwave, convection, broil, and air-fry functions
- Offers ten microwave power levels and sensor cooking modes
- Lists both product dimensions and a required cabinet cutout
- Includes a child lock and a halogen interior light
Cons:
- Its listed cutout dimensions require careful measurement before installation
- The supplied details do not specify a separate electrical outlet requirement
Verdict: Pick the AAOBOSI if air frying, sensor programs, and a clearly stated cabinet cutout are priorities, and verify the full installation requirements before ordering.
4. KoolMore Reserve: A 3-in-1 Pick with a Specific Power Requirement
The KoolMore Reserve combines microwave cooking, convection baking, and air frying. Its listed temperature range is 175°F to 450°F, and the convection fan is specified at 1,400 RPM. The product description also notes a preheat function and describes the appliance as suitable for baking, broiling, roasting, crisping, and reheating.
The most important detail to check is its electrical connection. The supplied information specifies a 20-amp NEMA 5-20P plug and says it needs a compatible 20-amp outlet, often recognizable by a T-slot receptacle. Do not assume that a standard outlet or your existing built-in appliance connection will work; verify compatibility with the installation instructions or a qualified electrician before purchasing.
The listing describes this as part of KoolMore’s Reserve Collection and states that it is CSA certified, with a three-year parts-and-labor warranty. However, the supplied product data marks this model as unavailable. Availability can change, so check the listing before planning a purchase. Compared with the AAOBOSI, it also offers air frying, but the supplied information gives fewer details about capacity, dimensions, and cooking presets.
Pros:
- Combines microwave, convection, and air-fry cooking
- Lists a temperature range from 175°F to 450°F
- Includes a preheat function and a specified convection-fan speed
- Product information states CSA certification and a three-year parts-and-labor warranty
Cons:
- Requires a compatible 20-amp NEMA 5-20P outlet
- The supplied product data marks it as unavailable
Verdict: Consider the KoolMore Reserve if you want air frying alongside microwave and convection cooking, but only if the product is available and your kitchen can meet its 20-amp outlet requirement.
How to Choose a Built-In Convection Oven Microwave Combination
Measure the cabinet opening, not just the appliance
Built-in appliances need to fit the cabinet cutout as well as the visible opening. Compare the manufacturer’s required cutout width, height, and depth with your measurements, and allow for any clearance or ventilation instructions in the installation guide. A product described as 24 inches wide may still need a specific opening that differs from your existing space.
Match the cooking functions to your routine
All-in-one models can combine several functions, but extra modes are only useful if you plan to use them. Convection can support baking and roasting, while broil adds direct high heat. Air fry may suit foods you want to crisp, and sensor programs can simplify reheating or cooking selected foods. Compare the named functions rather than assuming every combo includes the same options.
Check power and outlet requirements
Look beyond microwave wattage. The oven, broil element, and air-fry features may have separate power requirements, and some models need a specific outlet. The KoolMore Reserve, for example, specifies a 20-amp NEMA 5-20P connection. Confirm that your kitchen can support the appliance before placing an order, and consult a qualified professional if you are unsure.
Consider capacity and included accessories
Capacity affects the size of dishes you can fit inside. A turntable, wire rack, or other cooking accessory can also affect how you use the oven across different modes. Check the listed capacity and included items against the cookware and meals you typically prepare. Do not assume accessories from another appliance will fit or be suitable.
Look at door design and everyday handling
A built-in oven can be used often, so details such as a soft-close door, double-layer glass, interior lighting, and sturdy hinges may matter in daily use. These features can improve convenience, but they do not replace safe handling. Follow the manufacturer’s instructions when opening the door, moving hot cookware, and cleaning the appliance.
Review cleaning and safety features
Check the interior materials and cleaning instructions before buying. Some listings describe coated or wipe-clean surfaces, while features such as a child lock can help prevent unintended operation. Also confirm what the warranty covers and who handles installation or service. Read the complete product documentation for details that may not appear in a short product description.
Frequently Asked Questions
What does a convection microwave combination do?
It combines microwave cooking with an oven mode that circulates heated air. Depending on the model, it may also include broiling or air frying. The available modes and controls vary, so check each product’s feature list.
Can a built-in convection microwave replace a wall oven?
It may handle some tasks you would otherwise use a wall oven for, such as convection baking or broiling. Whether it can replace your oven depends on its capacity, cooking features, and how much food you prepare at once.
Do all four models include air frying?
No. The AAOBOSI and KoolMore Reserve list air-fry functions. The supplied details for the first KoolMore and ThermoMate list microwave, convection, and broil features, but do not specify air frying.
How do I know whether a model will fit my cabinet?
Measure the cabinet opening and compare it with the appliance’s specified cutout dimensions and installation instructions. Check width, height, and depth, along with any required clearances. Do not rely only on the product’s nominal width.
Do these appliances need a special electrical outlet?
Requirements depend on the model. The KoolMore Reserve specifically calls for a compatible 20-amp NEMA 5-20P outlet. For the other models, check the full installation documentation for voltage, circuit, and outlet requirements before buying.
What is the benefit of sensor cooking?
Sensor cooking is designed to adjust cooking based on the food or cooking conditions detected by the appliance. The AAOBOSI lists sensor cook and sensor reheat, while the ThermoMate lists sensor cooking. Follow each model’s instructions to see which foods and settings are supported.
Which model is the best choice for most kitchens?
The AAOBOSI offers a broad mix of microwave, convection, broil, air-fry, and sensor functions, along with stated cabinet cutout dimensions. It is a practical choice if those features fit your needs and your kitchen meets its installation requirements. If you prefer fewer functions and a soft-close door, the first KoolMore is another option to compare.
Conclusion
For a feature-rich option, the AAOBOSI stands out for its air-fry function, sensor programs, and listed cutout dimensions. The ThermoMate is worth considering if you want several cooking modes and included accessories, while the first KoolMore offers a simpler feature set with a soft-close door. The KoolMore Reserve adds air frying but has a specific 20-amp outlet requirement and is marked unavailable in the supplied product data. Before choosing any model, confirm current availability, cabinet fit, electrical compatibility, and installation details.