Best Window Air Conditioner Heater Combos for Home Comfort

Finding the right window air conditioner with heat means matching capacity, features and installation to your room size and climate. Below is a concise summary of the five selected units, followed by detailed product sections and a practical buying guide to help pick the best unit for your space.

Model	Cooling / Heating	Best For	Notable Features
Midea 8,000 BTU Smart Inverter	8,000 BTU / Heat Pump	Rooms Up To 350 Sq. Ft.	Inverter tech, Energy Star, Wi‑Fi, Dehumidifier
LG 18,000 BTU Window Air Conditioner	18,000 BTU / Supplemental Heat (230/208V)	Large Rooms Up To 1,000 Sq. Ft.	High capacity, 230/208V power, 4‑way deflection
GE AWGP08WWA 8,000 BTU Smart Heat/Cool	8,000 BTU Cooling & Heating	Medium Rooms Up To 350 Sq. Ft.	Heat pump tech, Wi‑Fi control, SmartHQ app
Keystone 23,200 BTU Window‑Wall Unit	23,200 BTU / 16,000 BTU Heat	Very Large Rooms Up To 1,500 Sq. Ft.	Through‑the‑wall option, large capacity, dehumidifier
Whirlpool 18,000 BTU Window Air Conditioner	18,000 / Supplemental Heat	Large Spaces Up To 1,000 Sq. Ft.	Multiple modes, eco & sleep settings, quick install kit

Midea 8,000 BTU Smart Inverter Air Conditioner

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This Midea window unit pairs inverter variable‑speed technology with a heat pump function to deliver year‑round comfort for rooms up to about 350 square feet. The inverter design aims to provide steady temperature control while using less energy than fixed‑speed compressors.

• Modes & Controls: Heat, Auto, Cool, Dry, Fan with 3 fan speeds and LED display.
• Connectivity: Wi‑Fi enabled for app control and voice assistant integration (Alexa, Google Assistant).
• Energy Efficiency: Energy Star rated; claims up to ~35% energy savings versus baseline standards.
• Maintenance: Front‑accessible washable filter and swing louvers for directional airflow.
• Heating Note: Heat pump function operates effectively when outside temperatures are above ~41°F; intended as supplemental heat.

This unit emphasizes energy savings and smart control, making it suitable for users who want app/voice operation and steady temperature control in medium rooms.

LG 18,000 BTU Window Air Conditioner With Heat

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The LG 18,000 BTU window air conditioner is designed for larger spaces up to about 1,000 square feet and uses a 230/208V power connection with an LCDI NEMA 6‑20 plug. It includes a supplemental heat option designed to add warmth during cooler conditions.

• Capacity: High cooling capacity suitable for large rooms and open floor plans.
• Heating: Supplemental heat mode; not intended as a primary heating source in extreme cold.
• User Interface: Digital controls, remote control, 24‑hour timer, and filter light reminder.
• Airflow: 4‑way air deflection for broad coverage and directional control.
• Installation: Includes installation kit; requires appropriate electrical provision (230/208V).

Consider this LG unit when cooling or supplemental heating is required for large interior spaces and when the appropriate electrical circuit is available.

GE AWGP08WWA 8,000 BTU Smart Heat/Cool Window AC

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The GE AWGP08WWA is a compact smart window unit that offers both cooling and heat pump heating for rooms up to about 350 square feet. It highlights heat pump technology that claims improved heating effectiveness over traditional resistive heat elements.

• Smart Features: Wi‑Fi enabled and compatible with the SmartHQ app for remote operation and monitoring.
• Heating Performance: Heat pump system intended to provide faster, more efficient warmth compared to basic electric resistance heat.
• Capacity: 8,000 BTU cooling and corresponding heating capability for medium rooms.
• Installation: Includes an easy install kit; designed for standard window mounting.

This GE model suits buyers seeking smart control and improved heat pump heating in a compact footprint for bedrooms or living rooms of moderate size.

Keystone 23,200 BTU Window‑Wall Air Conditioner

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The Keystone 23,200 BTU unit is a high‑capacity through‑the‑wall or window option intended for very large spaces up to roughly 1,500 square feet. It combines cooling, supplemental heat and dehumidification for whole‑space comfort.

• High Capacity: 23,200 BTU cooling with 16,000 BTU supplemental heat makes this suitable for large open areas.
• Modes: Cooling, supplemental heating, dehumidifier and fan circulation modes.
• Supplemental Heat Guidance: Supplemental mode is designed for moderate outdoor temps (approx. 23–76°F) and is not a primary heat source in extreme cold.
• Controls: Smart remote with room temperature sensing and regular signal updates for accurate control.
• Installation: Designed for through‑the‑wall applications as well as large window mounts, typically requires professional assessment for wall sleeve compatibility.

Choose the Keystone when addressing very large rooms or open floor plans where single‑unit high capacity cooling and supplemental heat are needed.

Whirlpool 18,000 BTU Window Air Conditioner With Heat

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Whirlpool’s 18,000 BTU window unit delivers high cooling capacity alongside supplemental heating for spaces up to about 1,000 square feet. Its feature set focuses on user comfort modes and easy installation.

• Functionality: Electronic controls, eco and sleep modes, 3 cooling speeds and 24‑hour programmable timer.
• Heating: Supplemental heating designed to augment warmth in moderately cool conditions.
• Airflow: 8‑way directional louvers offer flexible airflow distribution.
• Installation: Quick mounting kit included; window height minimum and electrical requirements should be verified.

The Whirlpool model is practical for homes needing robust cooling with supplemental heat options and user‑friendly programmable features for larger rooms.

Buying Guide: How To Choose The Best Window Air Conditioner With Heat

Room Size And BTU Capacity

Match the unit’s cooling BTU rating to the room’s square footage. Rough guidance:

• Up to 150 sq ft: ~5,000 BTU
• 150–350 sq ft: ~8,000 BTU
• 350–700 sq ft: 10,000–14,000 BTU
• 700–1,500+ sq ft: 18,000–23,000+ BTU

Oversizing can cause short cycling and humidity issues; undersizing leads to insufficient cooling.

Heating Type: Heat Pump vs. Resistive Supplemental Heat

Heat Pump units move heat and usually provide more efficient heating above moderate outdoor temps. They are more energy efficient but may lose effectiveness as temperatures approach freezing.

Resistive/Supplemental Heat (electric heaters) provide straightforward warmth but are typically less efficient and may be intended only for modest temperature boosts.

Electrical Requirements And Installation

Check voltage and plug type: many larger units require 230/208V and a specific LCDI plug (NEMA configuration). Ensure your circuit can handle the amperage. Measure window dimensions and check minimum clearance and mounting kit compatibility. Through‑the‑wall installations may need a wall sleeve and professional installation.

Efficiency And Energy Considerations

Look for Energy Star where possible and consider inverter technology for quieter, more consistent operation and lower electrical draw. Compare EER/SEER values if available. Smart scheduling and timers can reduce runtime and costs.

Smart Features And Controls

Wi‑Fi, app control, and voice assistant compatibility offer remote scheduling, monitoring and integration with smart home systems. Decide whether remote control, onboard digital display, or mechanical dials best suit your needs.

Noise Levels And Comfort

Review fan speed options, low‑noise modes and sleep settings for bedroom use. Inverter systems typically run quieter due to variable compressor speeds. Louvers and multi‑directional airflow can improve perceived comfort.

Maintenance And Filter Access

Choose units with easy front‑access washable filters and replaceable parts. Regular cleaning of filters and condenser fins maintains performance and efficiency.

Dehumidification And Multi‑Mode Operation

Dehumidifier modes reduce indoor humidity without overcooling. Units that offer Dry, Auto, Fan‑Only and Eco modes provide more flexibility for varying weather and occupancy patterns.

Durability, Warranty And Support

Review manufacturer warranty terms, availability of replacement parts and customer service reputation. For high‑use or high‑capacity units, confirm local service availability and recommended installation practices.

Comparison Perspectives

Small/Medium Rooms: Consider compact 5,000–8,000 BTU models with heat pump capability for efficient heating and cooling.

Large Spaces: Use 18,000 BTU and above units; verify electrical circuits and installation space.

Energy‑Focused Buyers: Prioritize inverter technology and Energy Star certification.

Smart Home Integration: Choose Wi‑Fi enabled models with app control for remote management and scheduling.

Use the table and product sections above to match capacity, electrical needs, smart features and installation constraints to your specific room and climate before deciding on the best window air conditioner/heater combo for your home.