Selecting a through-the-wall or wall-mounted air conditioner with built-in heating gives year-round comfort without the footprint of portable units. Below is a quick comparison of top models that combine cooling, supplemental heat or heat pump operation, and useful controls for homes, apartments, or commercial spaces.
| Product | Cooling Capacity | Heating Type / Notes |
|---|---|---|
| Keystone 14,000 BTU Wall Mounted | 14,000 BTU | 10,600 BTU Supplemental Heat (230V) |
| Keystone 23,200 BTU Window-Wall | 23,200 BTU | 16,000 BTU Supplemental Heat, Smart Remote (230V) |
| Frigidaire Through-the-Wall 12,000 | 12,000 BTU | Wall-mounted design; slide-out chassis; washable filter |
| Klimaire PTAC 12,000 BTU Heat Pump | 12,000 BTU | Heat Pump + 3.5 kW Electric Backup Heater (R-32, 230V) |
| ROVSUN 8,000 BTU Through-the-Wall | 8,000 BTU | 4-in-1 Heat/Cool/Dry/Fan, 115V |
Content Navigation
- Keystone 14,000 BTU Wall Mounted Air Conditioner With Supplemental Heat
- Keystone 23,200 BTU Window-Wall Air Conditioner With Supplemental Heat
- Frigidaire Through-the-Wall Room Air Conditioner 12,000 BTU
- Klimaire PTAC 12,000 BTU Heat Pump With Electric Backup
- ROVSUN 8,000 BTU Through The Wall Air Conditioner With Heater
- Buying Guide: How To Choose A Wall Air Conditioner With Heater
Keystone 14,000 BTU Wall Mounted Air Conditioner With Supplemental Heat
This wall-mounted unit provides 14,000 BTU cooling and 10,600 BTU supplemental heating for large spaces up to 700 sq. ft. It supports cooling, supplemental heat, dehumidification, and fan-only modes. The supplemental heating mode is intended as a backup or mild-weather boost and is not a primary heating source.
- Electrical: Requires 230V / 20A outlet—plan wiring accordingly.
- Space savings: Through-the-wall installation frees window space and floor area.
- Controls: Remote control included for convenience.
Keystone 23,200 BTU Window-Wall Air Conditioner With Supplemental Heat
Designed for large areas up to 1,500 sq. ft., this unit combines 23,200 BTU cooling and 16,000 BTU supplemental heating. It offers cooling, supplemental heat, dehumidification, and fan modes. The smart remote samples ambient temperature and updates the unit periodically for more accurate control of comfort.
- Smart remote reports room temperature and transmits commands every few minutes.
- All-in-one functionality supports seasonal use without separate systems.
- Electrical: 230V operation—verify supply and outlet compatibility.
Frigidaire Through-the-Wall Room Air Conditioner 12,000 BTU
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The Frigidaire through-the-wall unit delivers 12,000 BTU cooling, good for rooms up to about 550 sq. ft. It is intended specifically for wall installation and includes a slide-out chassis for maintenance. The washable mesh filter helps capture dust and maintain airflow efficiency.
- Installation: Through-the-wall chassis simplifies access and servicing.
- Maintenance: Slide-out design and washable filter reduce upkeep complexity.
- Controls: Remote control, timer, and sleep mode increase versatility.
Klimaire PTAC 12,000 BTU Heat Pump With Electric Backup
The Klimaire PTAC combines a 12,000 BTU heat pump with an included 3.5 kW electric backup heater, making it suitable for replacement of standard 42″ x 16″ PTAC sleeves. It uses R-32 refrigerant and lists EER ~10.5, indicating efficiency relative to similar PTAC models.
- Compatibility: Designed for common PTAC sleeve dimensions for straightforward replacement.
- Heating options: Heat pump mode with electric backup provides reliable winter performance.
- Controls: Wireless remote included; multiple operation modes for flexibility.
ROVSUN 8,000 BTU Through The Wall Air Conditioner With Heater
This compact through-the-wall unit covers spaces up to about 350 sq. ft. and offers cool, heat, dry, and fan modes. It runs on standard 115V power and includes a 24-hour timer and remote control for convenient operation in bedrooms or smaller apartments.
- Versatile modes provide year-round comfort in small spaces.
- Voltage: 115V operation avoids special wiring in most homes.
- Control: LED panel plus remote makes adjustments straightforward.
Buying Guide: How To Choose A Wall Air Conditioner With Heater
When selecting a wall or through-the-wall air conditioner with heating capability, consider these core factors to match unit performance and features to your space and needs.
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Capacity And Room Size
BTU rating correlates with cooling capacity. Oversized units cycle on and off too often; undersized units run continuously. For through-the-wall or PTAC units, match the listed square-foot coverage to your room layout and insulation levels.
Heating Method: Supplemental Heat Vs Heat Pump
Supplemental electric heat provides warmth for mild conditions but is not a primary furnace replacement. Heat pumps offer more efficient year-round heating in moderate climates and can reduce operating costs compared with resistive electric heat.
Electrical Requirements And Installation
Check voltage and amperage: many larger wall units require 230V circuits and dedicated breakers. Smaller through-the-wall models may run on 115V. Confirm the wall sleeve or opening dimensions and whether the unit fits existing sleeves or requires construction work.
Efficiency And Performance Metrics
Look for EER or SEER ratings where available to compare efficiency. Higher EER/SEER values indicate better energy performance. For heat pumps, COP values and rated heating BTUs matter for winter operation.
Controls, Remote Features, And Smart Functions
Remote controls, programmable timers, and smart remotes that report ambient temperature improve comfort control. Consider whether roommate or family use requires simple interfaces or advanced scheduling options.
Noise Levels And Placement
Wall-mounted compressors can produce noticeable sound. Check manufacturer noise ratings when quiet operation is a priority. Placement should avoid direct line-of-sight to sleeping areas where possible.
Maintenance And Serviceability
Slide-out chassis, washable filters, and accessible panels reduce ongoing maintenance time. For PTAC or through-the-wall models, consider availability of replacement parts and suitability for routine servicing.
Climate And Operating Range
Confirm the operating temperature range for supplemental heating modes. Some units limit supplemental heat to specific outdoor temperature ranges; heat pumps perform better in milder cold than resistive heating in extreme cold.
Comparison Perspectives
- Large spaces: Choose higher-BTU through-the-wall or window-wall units with 230V supply for capacity and efficiency.
- Moderate climates: Heat-pump-equipped units (PTAC or mini-split style) balance heating and cooling efficiency.
- Smaller rooms: 115V through-the-wall units offer simpler installation without special wiring.
- Replacement vs New Install: PTAC-compatible units are ideal for sleeve replacements; custom wall openings may require contractor work for other models.
Final Tips: Verify room square footage, confirm electrical supply, check installation requirements, and decide if supplemental heat or a heat pump better matches your climate and usage patterns before purchasing.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.