If you’re shopping for a 220 window air conditioner with built‑in heating, you want a unit that cools efficiently in summer and provides reliable supplemental heat when temperatures drop. These five models are tailored for medium to large rooms, easy installation, and smart control. They’re best for renters or homeowners seeking an all‑season solution without permanent modifications. The table below highlights each option for quick comparison.
| Model | Room Size (Sq. Ft.) | Heat Type | Smart Features |
|---|---|---|---|
| Midea 8,000 BTU | Up to 350 | Supplemental heat | SmartHome App, Alexa, Google Assistant |
| Midea 12,000 BTU | Up to 550 | Supplemental heat | SmartHome App, Alexa, Google Assistant |
| Keystone 23,200 BTU | Up to 1,500 | Supplemental heat | Smart Remote |
| ROVSUN 8,000 BTU | Up to 350 | Aux heat + dehumidifier | App & voice control |
| Bonnell 12,000 BTU | Up to 550 | Supplemental heat | Wi‑Fi & voice control |
Midea 8,000 BTU Smart Inverter Window Ac with Heat

The 8,000 BTU model provides year‑round climate control for spaces up to 350 sq. ft. It combines cooling, dehumidification, and supplemental heat with inverter technology for energy savings. It uses a multi‑season design and can be controlled from the control panel, remote, or the SmartHome app. It’s best for medium living rooms, bedrooms, or home offices where energy efficiency matters. Note the heat function activates only when outside temperatures exceed 41°F.
Best for: Medium rooms and users who want smart control integration with voice assistants. Better for: spaces where energy savings are a priority. Choose this if: you need a compact, energy‑efficient unit with heat for transitional seasons.
Caution: Heat function is limited by outdoor temperature; plan for additional heat in colder conditions.
Midea Inverter Window AC With Heat – 12,000 BTU

This 12,000 BTU unit cools up to 550 sq. ft. and adds supplemental heat for shoulder seasons. It features inverter technology for energy efficiency, a digital LED display, 5 modes, and remote or app control. It’s best for larger living spaces or open layouts where cooling and heat needs are higher. The heat pump generally won’t operate when outdoor temps fall below 41°F.
Best for: Larger rooms needing strong cooling plus seasonal heating. Better for: tech‑savvy users who want app and voice control. Choose this if: you prioritize larger coverage and energy‑efficient operation.
Caution: Heat operation is limited in very cool outdoor conditions; plan for alternative heating in winter storms.
Keystone 23,200 BTU Window AC with Supplemental Heat

This large‑capacity unit cools up to 1,500 sq. ft. and adds a substantial 16,000 BTU supplemental heat capacity. It combines cooling, dehumidification, and a multi‑season mode with a smart remote that reads room temperature and smartly adjusts the unit. Best for: big rooms or open spaces needing robust cooling with seasonal heating. Caution: Supplemental heat is not designed as the primary heating source; use additional heat in extreme cold.
Best for: oversized spaces and those who value a dedicated remote with smart sensing. Better for: installations where a dedicated cooling/heating solution is required for large areas. Choose this if: you need substantial heating capacity alongside cooling.
ROVSUN 8,000 BTU Window AC With Heat

This 8,000 BTU unit offers fast cooling and heating for spaces up to 350 sq. ft. It includes a dehumidifier function and five operating modes, with a 24‑hour timer and ECO energy saver. It supports WiFi app control and voice commands via Alexa or Google Assistant. Best for: quick, year‑round climate control in smaller living areas. Caution: Heat mode has a temperature range limit; verify local climate needs before relying on it as primary heat.
Bonnlo 12,000 BTU Window AC with Heat

With 12,000 BTU cooling and 9,000–11,000 BTU heating, this unit covers up to 550 sq. ft. It features smart Wi‑Fi control, voice control, and an easy installation kit. It’s best for larger rooms where year‑round control is needed and quick system setup is desired. Note the instruction mentions 230V operation and installation specifics that may affect some window types.
Best for: medium‑to‑large rooms needing balanced year‑round comfort. Better for: households that prioritize seamless smart control and simple installation. Choose this if: you want a robust, Wi‑Fi enabled unit with both cooling and heating capabilities.
Buying Guide: Key Considerations For 220 Window AC Heaters
- Room size: Match BTU output to the space. Oversized units waste energy; undersized units struggle to maintain comfort.
- Heat capacity: Check supplemental heating BTU and temperature limits to ensure adequate performance in your climate.
- Energy efficiency: Look for inverter compressors and Energy Star ratings to maximize yearly savings.
- Smart features: Decide if you need app control, voice assistants, schedules, and remote operation.
- Installation and compatibility: Confirm window type, height, and whether a kit is included for easy setup.
- Maintenance: Consider washable filters and straightforward cleaning to maintain efficiency.
- Safety and noise: Review decibel levels and safety features for bedrooms or nurseries.
Frequently Asked Questions
- What size window unit do I need for a 350 sq. ft. room? A unit around 8,000–12,000 BTU is typically suitable, depending on ceiling height and climate.
- Do these units provide heat in cold weather? They offer supplemental heat but may not replace a primary heater in very cold conditions.
- Can I control these units with a smart home system? Many models support apps and voice control via Alexa or Google Assistant.
- Is inverter technology worth it? Yes, it generally provides energy savings and steadier temperature control.
- Are installation kits included? Some models include easy‑install kits; verify listing to ensure you have the needed parts.
- Will the heat pump operate below certain outdoor temperatures? Many units limit heat pump operation below specific Fahrenheit thresholds.