Finding a reliable combined air conditioner and heater helps you manage year-round comfort without multiple appliances. Below is a quick comparison of five versatile options that cover window, portable, and ductless split formats. Each selection includes BTU or coverage guidance and notable features to help match unit type to room size and installation preferences.
| Product | Type | Coverage / BTU | Key Feature |
|---|---|---|---|
| Midea 8,000 BTU Smart Inverter | Window | Up To 350 Sq. Ft. / 8,000 BTU | Inverter, Wi‑Fi, Energy Star |
| Uhome 12,000 BTU Portable AC With Heater | Portable | Up To 400 Sq. Ft. / 12,000 BTU | Self‑Evaporating, 4‑in‑1 |
| Whynter 14,000 BTU Portable AC & Heater | Portable (Dual Hose) | Up To 500 Sq. Ft. / 14,000 BTU | Dual Hose, Auto Drain Dehumidifier |
| LG 18,000 BTU Window AC With Heat | Window | Up To 1,000 Sq. Ft. / 18,000 BTU | High Capacity, 230/208V Model |
| COSTWAY 12,000 BTU Mini Split Inverter | Ductless Mini Split | Up To 750 Sq. Ft. / 12,000 BTU | Wall Mounted, Inverter, Heat Pump |
Midea 8,000 BTU Smart Inverter Window AC With Heat
This window-mounted unit offers heating and cooling in one compact package, rated for rooms up to 350 sq. ft. It uses variable-speed inverter technology designed to reduce energy use compared to standard compressors and carries an Energy Star rating. Modes include Heat, Auto, Cool, Dry, and Fan with three fan speeds, a 24-hour timer, and swing louvers for directional airflow. The heat pump function operates when outdoor temperatures are above 41°F. Control options include an LED panel, remote, app connectivity, and voice control via Alexa/Google Assistant. The washable front filter supports routine maintenance and peak performance.
Uhome 12,000 BTU Portable Air Conditioner With Heater
This portable 4‑in‑1 unit combines cooling, heating, dehumidifying, and fan modes for rooms up to 400 sq. ft. It features a self‑evaporating system to reduce water tray emptying and an efficient compressor with operating noise around 52 dB. The unit offers three fan speeds, a 24‑hour programmable timer, automatic air swing, and an LED display with remote control. The manufacturer lists a high moisture removal capacity and an airflow rating that supports steady circulation. Portability and included window kit make it suitable for renters or spaces where permanent installation is not desired.
Whynter 14,000 BTU Portable AC & Heater Dual Hose
The Whynter model is a dual‑hose portable unit sized for larger rooms up to 500 sq. ft. It reports a moderate noise level (around 51 dBA on low) and includes a patented auto‑drain function that exhausts condensate in many conditions, reducing manual draining. The unit doubles as a dehumidifier with significant pint‑per‑day capacity and delivers robust airflow. Dual‑hose designs typically improve efficiency and cooling speed versus single‑hose portables by drawing outdoor air for condenser cooling. The product includes a window installation kit and is constructed with CFC‑free refrigerant.
LG 18,000 BTU Window Air Conditioner With Heat
This higher‑capacity window unit is designed to cool spaces up to 1,000 sq. ft. It provides supplemental heat functionality and requires a 230/208V NEMA 6‑20 style connection for operation. The unit offers multiple fan speeds for cooling and heating, 4‑way air deflection, and a digital control panel with remote. Standard convenience features include a 24‑hour timer, filter reminder, and a removable washable filter. The model suits larger open layouts, basements, or commercial applications where the electrical supply matches the unit’s requirements.
COSTWAY 12,000 BTU Mini Split Wall‑Mounted Inverter
This ductless mini‑split features inverter technology and a heat pump, suitable for spaces up to 750 sq. ft. The unit supports multiple modes—auto, cool, dry, heat, and fan—and several fan speeds plus ECO and sleep modes. Inverter control modulates compressor speed for improved energy efficiency and quieter operation. As a wall‑mounted system, it requires professional or experienced DIY installation and exterior line‑set work. Mini‑splits deliver zoned comfort with higher steady‑state efficiency compared to window or portable options.
Buying Guide: How To Choose An Air Conditioner With Heat
Selecting the right air conditioner and heater combo depends on room size, installation constraints, noise tolerance, energy efficiency, and budget for purchase and installation. The sections below cover key factors and comparison perspectives to inform a purchase decision.
Room Size And BTU Capacity
- Match BTU To Square Footage: Portable and window units list BTU and recommended coverage. Undersizing limits comfort; oversizing causes short cycling and inefficiency.
- Use Higher Capacity For Open Layouts: Larger open plans or rooms with high ceilings generally require increased BTU capacities or a split system.
Unit Type Comparison
- Window Units: Typically lower cost, straightforward installation for single rooms, and good energy performance options; require a window and may need higher amperage for large models.
- Portable Units: Easy to move and install without permanent changes; single‑hose models can be less efficient than dual‑hose variants. Dual‑hose portables improve efficiency and cooling speed.
- Mini‑Split Systems: Higher upfront cost and installation complexity but offer superior energy efficiency, quieter operation, and zoned temperature control.
Heating Performance And Limits
- Heat Pump vs. Electric Resistance: Heat pump functions move heat and are more efficient at moderate cold; many heat pumps have limited performance below a specified outdoor temperature.
- Supplemental Heat: Window or portable units often provide supplemental heat for mild winter conditions; very cold climates may require a dedicated heating system.
Energy Efficiency And Operating Costs
- Inverter Technology: Offers smoother modulation of power, reduced cycling, and potential energy savings compared to fixed‑speed compressors.
- Energy Star And SEER/ EER Ratings: Look for Energy Star certification and higher EER or SEER values for lower operating costs.
Noise And Comfort Features
- Decibel Ratings: Check dB values for low/medium/high speeds if bedroom or quiet applications are important.
- Airflow Controls: Multiple fan speeds, adjustable louvers, and swing modes improve distribution and comfort.
Installation, Electrical, And Maintenance
- Electrical Requirements: Verify voltage and plug type—larger window units may require 230/208V connections and appropriate breakers.
- Installation Complexity: Portable units need a venting kit; window units require secure window mounting; mini‑split systems need professional refrigerant line and wall penetrations.
- Maintenance: Removable washable filters and accessible condensate or auto‑drain functions simplify upkeep.
Dehumidification And Air Quality
- Built‑In Dehumidifiers: Units with dehumidifying modes help control indoor humidity and can reduce cooling load in humid climates.
- Filters And Add‑Ons: Check for washable filters and compatibility with additional filtration if allergy control is a priority.
Operational Controls And Connectivity
- Control Options: Remote control, onboard LED displays, timers, and app/voice control expand convenience and scheduling.
- Smart Home Integration: Wi‑Fi enabled models allow remote scheduling and monitoring; useful for energy management.
Performance Over Time And Warranty
- Durability: Consider brand reputation, compressor type, and corrosion resistance for long service life.
- Warranty Coverage: Review manufacturer warranty terms for compressor, parts, and labor to assess long‑term protection.