The following guide compares five all-season air conditioners with heating capabilities across portable, window, and mini-split formats. Below is a quick summary to help you scan options before detailed reviews.
| Product | Type | Cooling BTU | Suggested Coverage |
|---|---|---|---|
| Uhome 12000 BTU Portable AC Heater | Portable | 12,000 BTU | Up To 400 Sq. Ft. |
| LG 23,000 BTU Window AC With Heat | Window | 23,000 BTU | Up To 1,400 Sq. Ft. |
| COSTWAY 12000 BTU Mini Split Heat Pump | Wall-Mounted Mini Split | 12,000 BTU | Up To 750 Sq. Ft. |
| Whynter 14,000 BTU Dual Hose Portable | Dual-Hose Portable | 14,000 BTU | Up To 500 Sq. Ft. |
| ROVSUN 8000 BTU Window AC With Heat (Smart) | Window | 8,000 BTU | Up To 350 Sq. Ft. |
Uhome 12000 BTU Portable AC Heater
This portable 4-in-1 unit offers cooling, heating, dehumidifying and fan modes, rated for rooms up to 400 square feet. The manufacturer lists a 12,000 BTU capacity for both cooling and heating functions and a self-evaporating system to reduce manual water emptying. Noise is specified near 52 dB, and airflow is rated at 360 m³/hr. Built-in features include an LED display, remote control, 24-hour programmable timer, three fan speeds and automatic swing.
Use cases: temporary cooling/heating where a window or wall install isn’t suitable. Consider venting requirements and window kit compatibility during installation planning.
LG 23,000 BTU Window AC With Heat
The LG window unit combines high-capacity cooling with supplemental heating for larger rooms up to 1,400 square feet. Key specs mention low-noise operation down to 50 dB and multiple fan speeds across cooling and heating modes. Controls include a remote, and the unit is intended for window installation to maintain steady indoor temperature.
Strengths for larger spaces include the higher BTU rating and engineered window fit. Confirm window size, electrical requirements (this model specifies 230V), and any local installation codes before purchase.
COSTWAY 12000 BTU Mini Split Heat Pump
This wall-mounted ductless mini-split uses an inverter-driven compressor and a heat pump to provide both energy-efficient cooling and heating. The unit lists 12,000 BTU capacity and AHRI certification, with five operation modes (auto, cool, dry, heat, fan) and multiple fan speeds including ECO and sleep functions. Remote control and low-noise operation are noted for convenience.
Mini-splits require professional or experienced DIY installation for refrigerant lines and wall mounting. Advantages include higher seasonal efficiency, quieter indoor units, and year-round heat pump operation rather than resistive heating.
Whynter 14,000 BTU Dual Hose Portable
Whynter’s dual-hose portable unit is rated at 14,000 BTU (9,200 SACC) and covers up to 500 square feet. The features highlight a patented auto-drain function, a built-in dehumidifier with up to 71 pints/day capacity, and quiet operation around 51 dBA on low. This model earned a Good Housekeeping award for overall portable performance.
Dual-hose design separates intake and exhaust airflow, improving efficiency and reducing negative pressure in the cooled space compared with single-hose portables. Check window kit compatibility and clearances for venting before installation.
ROVSUN 8000 BTU Window AC With Heat (Smart)
This compact window unit combines an 8,000 BTU cooling capacity with 4,000 BTU heating and emphasizes smart connectivity. Listed features include five modes (heat, auto, cool, dry, fan), ECO mode, 24-hour timer, washable front filter, and compatibility with Alexa/Google Assistant through Wi‑Fi and app control.
Best suited for small rooms up to 350 square feet, it targets buyers who want remote scheduling and voice control. As with any window model, assess window size, installation hardware, and noise expectations from the manufacturer’s specifications.
Buying Guide: How To Choose An AC With Heater Combo
This buying guide covers the essential decision points when selecting an air conditioner with integrated heating. Consider type, capacity, efficiency, installation, controls, and maintenance to match the unit to your space and usage patterns.
1. Unit Type: Portable Vs Window Vs Mini-Split
Portable Units: Offer flexibility and minimal installation. Expect hose venting to a window and periodic condensate management. Suitable for renters or rooms where permanent installation isn’t feasible.
Window Units: Provide higher BTU capacities for larger single-room applications. They typically require window mounting and can offer higher efficiency compared with single-hose portables.
Mini-Splits: Ductless wall-mounted systems require professional installation for refrigerant lines but deliver the best efficiency and quieter operation for year‑round heating via heat pump technology.
2. Sizing: BTU And Room Coverage
Match the unit’s BTU rating to room square footage. Oversized units cycle frequently, reducing dehumidification and comfort. Undersized units run continuously and may not reach set temperatures. Use the manufacturer’s suggested coverage as a baseline and adjust for high ceilings, sun exposure, or poor insulation.
3. Heating Method: Heat Pump Vs Electric Resistance
Heat Pump (Reversible) Systems: Provide heating by reversing refrigeration flow; typically more energy-efficient for moderate cold conditions and available in mini-splits and some window models.
Electric Resistance Heating: Often found in portable or combination units; reliable in very cold climates but more energy-intensive. Check whether “heating” refers to a heat pump or resistive element in product specs.
4. Efficiency Metrics And Energy Use
Check SEER/ EER/ HSPF ratings if available for mini-splits and higher-end window units. For portable and window units, look for energy-saving modes, ECO settings, programmable timers, and fan speed options to manage consumption.
5. Noise Levels And Comfort Features
Noise ratings (dB) are important for bedrooms and living rooms. Features like multiple fan speeds, sleep modes, and auto-swing louvers improve comfort. Dual-hose portables generally run more efficiently and with less room depressurization than single-hose models.
6. Installation And Electrical Requirements
Window units typically require sufficient window opening and sometimes dedicated circuits (especially 230V models). Mini-splits need a licensed installer and an outdoor condenser. Portable units need a nearby standard outlet but must vent to a window.
7. Smart Controls, Timers And Remote Access
Wi‑Fi, app control and voice assistant compatibility add convenience for scheduling and remote temperature management. Not all buyers need smart features; prioritize reliability and ease of use if you prefer manual controls.
8. Maintenance And Filtration
Consider ease of cleaning washable filters, accessibility for routine maintenance, and drainage handling for dehumidification. Self-evaporating or auto-drain systems reduce maintenance for portables. Replace or clean filters regularly to maintain efficiency and indoor air quality.
9. Special Features And Use Case Comparisons
- Dual-Hose Portable: Better for efficiency and faster cooling in larger rooms compared with single-hose portables.
- Smart Window Units: Offer remote scheduling and voice control for modern convenience in small to medium rooms.
- Mini-Split Heat Pumps: Best long-term efficiency and quieter operation; higher upfront installation complexity and cost.
- High-BTU Window Units: Good for very large single-room spaces; ensure proper electrical capacity.
10. Warranty, Support, And Brand Considerations
Confirm warranty length and what it covers (compressor, parts, labor). Check manufacturer support, availability of replacement filters and parts, and installer recommendations for mini-splits. Brands with broader service networks can simplify repairs.
11. Placement Tips And Seasonal Use
Place units to avoid direct sunlight and obstructions to airflow. For multi-room comfort, consider a combination of mini-split zones or multiple smaller units rather than one oversized unit. In winter, ensure condensate lines and drain pans are managed for heating operation when applicable.
12. Safety And Code Compliance
Verify local electrical codes for window and high-power units. Use recommended mounting hardware and follow manufacturer ventilation instructions. For units with heating elements, ensure tip-over and overheat protection are included where relevant.
Quick Comparison Checklist
- Determine room size and required BTU
- Decide between portability or permanent installation
- Confirm heating method: heat pump vs electric resistance
- Check electrical voltage and outlet availability
- Evaluate noise ratings, filter access, and smart features
- Review warranty and service options