Best Window AC Units With Heat Pump for Year‑Round Comfort
Finding an air conditioner that also provides reliable heating can simplify climate control in homes, apartments, or offices. The following window AC units offer built‑in heating, multiple modes, and smart features to help you maintain comfortable temperatures across seasons. The selections focus on models that combine cooling and heating efficiently, with easy installation and modern controls tailored for American homes.
The table below highlights five top options that pair cooling power with supplemental heating. Use this quick reference to compare BTUs, capacity, and key features at a glance.
| Product | BTU (Cool) | Heating Capacity | Smart/Controls | Room Size (approx.) |
|---|---|---|---|---|
| ROVSUN 8000 BTU Window AC With Heat | 8000 | 4000 BTU heater | Remote, ECO mode, timer | Up to 350 sq ft |
| LG 12,200 BTU Window AC With Supplemental Heat | 12,200 | Supplemental heat option | Remote, electronic controls | Up to 570 sq ft |
| ROVSUN 8000 BTU Window AC With APP & Voice Control | 8000 | 4000 BTU heater | APP & voice control (Alexa/Google) | Up to 350 sq ft |
| Keystone 12,000 BTU Window-Wall AC | 12,000 | 11,000 BTU supplemental heat | Smart remote, dehumidification | Up to 550 sq ft |
| Westinghouse 14,000 BTU With Heat | 14,000 | Heat mode included | WiFi enabled, programmable timer | Up to 700 sq ft |
Each model below is explained with its top features and practical considerations to help you choose the right window unit for your space and climate.
ROVSUN 8000 BTU Window AC With Heat

The ROVSUN 8000 BTU unit combines cooling and heating in a compact window design, suitable for rooms up to 350 square feet. It includes a 4,000 BTU heater and offers quick cooling with temperature control from 61°F to 88°F. The LED display and remote provide easy operation, and the installation kit with side panels helps simplify mounting. This 115V/60Hz model suits small apartments or offices seeking year‑round climate control without multiple devices.
Key features include a 4‑in‑1 function set (cool, heat, dehumidify, fan) and a timer for scheduling. Consider verifying your window dimensions before purchasing to ensure a proper fit. This unit is ideal for users who want a single, easy‑to‑install solution for seasonal comfort without extra heat sources.
LG 12,200 BTU Window AC With Supplemental Heat

This LG model provides robust cooling capacity for larger spaces—up to about 570 square feet—and offers a supplemental heating option for cooler days. It emphasizes low noise operation, reducing sound levels to as quiet as 50 dB in low mode, which helps maintain a comfortable environment without distraction. Two cooling/heating/fan speeds let you tailor airflow, and the remote control plus digital controls enable straightforward adjustments from across the room.
Because this unit requires a compatible electrical setup, ensure your window configuration and power supply meet the 230/208V specifications when applicable. Its versatility makes it a solid choice for living rooms, open‑concept spaces, or home offices that require reliable year‑round climate control with minimal noise.
ROVSUN 8000 BTU Window AC With APP & Voice Control

This ROVSUN model pairs 8,000 BTU cooling with 4,000 BTU heating and adds modern smart features. It supports app and voice control via Alexa or Google Assistant, enabling temperature management from anywhere. The unit includes a timer, multiple modes (Heat, Auto, Cool, Dry, Fan), and three fan speeds. An easy installation kit and the front‑panel washable filter support ongoing maintenance. Ideal for tech‑savvy users who want remote scheduling and control through smartphones or smart speakers, this unit delivers flexible climate management for mid‑sized rooms.
Installation and wiring should follow the included guidelines, and confirm voltage requirements for your locale. The built‑in energy saver mode helps optimize power use while maintaining comfort, making it a strong option for homes with smart home ecosystems.
Keystone 12,000 BTU Window-Wall AC

Keystone offers a high‑capacity window‑wall unit with 12,000 BTU cooling and 11,000 BTU supplemental heating, suited for larger spaces up to 550 square feet. It combines cooling, heating, dehumidification, and fan circulation in one device. The remote control is complemented by smart features like an I Sense remote that reads room temperature and shares the reading with the unit for improved temperature regulation. This model is well‑suited for living rooms or multi‑purpose spaces where reliable year‑round comfort is essential, especially in moderate to warm climates.
As with other larger units, verify window compatibility and electrical requirements before installation. The unit’s comprehensive cooling and heating capabilities make it a robust choice for long‑term comfort in medium to large rooms.
Westinghouse 14,000 BTU With Heat Mode

Westinghouse delivers a 14,000 BTU cooling capacity with a heat mode designed for flexible seasonal use. The unit is WiFi enabled and remote controlled, helping you adjust temperature, fan speed, and operation from a smartphone or tablet. A programmable timer and dehumidification function add to its versatility, making this model a strong option for those who value smart connectivity and energy management. The window kit simplifies mounting, and the unit is suitable for spaces up to around 700 square feet, such as larger living rooms or open‑concept areas.
Review electrical requirements and ensure your window supports the unit’s dimensions and weight. With broad cooling power and integrated heating, this unit provides a robust all‑season climate solution for sizable rooms.
Buying Guide: Key Considerations When Choosing a Window AC With Heat
- Room size and BTU: Match cooling BTU to the area you intend to cool; ensure heating capacity complements the climate and insulation of the space.
- Voltage and electrical setup: Some units require 230/208V or specific outlet configurations. Check local wiring and window frames before purchase.
- Heat function suitability: Supplemental heating is common; confirm whether it’s intended as a primary heat source or for occasional warming in milder conditions.
- Control options: Remote controls, digital displays, and smart features (APP or voice control) add convenience and could integrate with existing smart homes.
- Installation and window compatibility: Measure window width, height, and sill depth. Some models include mounting kits and side panels to fit standard windows; others may require more custom installation.
- Energy efficiency and modes: Look for energy saver modes, ECO settings, and multiple fan speeds to balance comfort with electricity use.
- Maintenance: Front‑panel filters and washable components simplify upkeep. Consider how easy it is to access filters for cleaning.
- Noise levels: For bedrooms or study spaces, quieter units (lower dB) improve comfort during operation.
All five models listed offer a mix of cooling power, heating capability, and practical controls suitable for American homes. When selecting, prioritize the space size, electrical readiness, and whether you value smart home integration or straightforward manual operation. This approach helps ensure dependable year‑round comfort with a single, space‑saving appliance.