Choosing a through-the-wall air conditioner with heater gives year-round control in rooms without window access. Below is a quick comparison of five relevant units included in this guide, followed by detailed product overviews and a practical buying guide to help match features to your space and electrical setup.
| Product | Cooling Capacity | Heating | Voltage | Coverage |
|---|---|---|---|---|
| Keystone 14,000 BTU Wall Mounted AC | 14,000 BTU | 10,600 BTU Supplemental | 230V | Up To 700 Sq.Ft. |
| Keystone 23,200 BTU Window-Wall AC | 23,200 BTU | 16,000 BTU Supplemental | 230V | Up To 1,500 Sq.Ft. |
| ROVSUN 8000 BTU Through The Wall AC | 8,000 BTU | Integrated Electric Heater | 115V | Up To 350 Sq.Ft. |
| Cooper & Hunter 9,000 BTU PTAC Heat Pump | 9,000 BTU | Built-In 3.5kW Electric Heater | 208/230V | Typical PTAC Coverage |
| Durastar DRTAC142XNA1 14,000 BTU | 14,000 BTU | Dehumidifier / No Primary Heater Listed | 208/230V | 550–700 Sq.Ft. |
Keystone 14,000 BTU Wall Mounted Air Conditioner With Supplemental Heat
This 14,000 BTU wall-mounted unit provides cooling for large rooms and includes a 10,600 BTU supplemental heating mode. It supports dehumidification and fan-only functions for flexible year-round use. The heating mode is specified as supplemental and is recommended for moderate outdoor temperatures (23–76°F), not as a primary home heating solution.
- Power/Electrical: Requires 230V/20A outlet.
- Space Coverage: Rated for up to 700 sq.ft.
- Installation: Wall-mounted with interior trim kit for a space-saving profile.
- Controls: Remote control included for convenience.
Keystone 23,200 BTU Through The Wall Air Conditioner With Supplemental Heat
The 23,200 BTU Keystone model is a high-capacity through-the-wall option offering 16,000 BTU supplemental heat. It combines cooling, supplemental heating, and dehumidification with smart remote features that sample room temperature and update frequently to maintain setpoints.
- Power/Electrical: 230V unit suited to larger installations.
- Space Coverage: Up to 1,500 sq.ft. capacity for large open areas.
- Smart Remote: Remote reads room temperature and transmits updates for closer climate control.
- Modes: Cooling, supplemental heat, dehumidify, fan circulation.
ROVSUN 8000 BTU Through The Wall Air Conditioner With Heater
The ROVSUN 8,000 BTU through-the-wall unit provides 4-in-1 operation: cooling, heating, dehumidifying, and fan modes. Designed for smaller spaces, it balances compact installation with remote and LED panel controls.
- Power/Electrical: 115V operation suitable for standard household circuits.
- Space Coverage: Recommended up to 350 sq.ft.
- Controls: LED panel and full-function remote with timer.
- Modes: Cool, Heat, Fan, Dry with adjustable fan speeds and 24-hour timer.
Cooper & Hunter 9,000 BTU PTAC With 3.5kW Electric Heater
This PTAC-style packaged terminal unit integrates a 3.5kW electric heater with cooling and dehumidification capabilities and runs on 208/230V. It ships with a wireless smart kit and is charged with R-32 refrigerant, making it suitable for hotel rooms, apartments, or installations where a PTAC form factor is preferred.
- Power/Electrical: 208/230V single-phase — confirm receptacle and breakers before purchase.
- Heating: 3.5kW built-in electric heater for robust supplemental heating.
- Installation: Typically requires a wall sleeve and exterior grille (sold separately for new installs).
- Controls: Wireless smart kit and remote included.
Durastar DRTAC142XNA1 14,000 BTU Through The Wall Air Conditioner
The Durastar 14,000 BTU through-the-wall unit offers strong cooling capacity and useful comfort features but does not list a primary built-in electric heating element in the provided features. It includes dehumidifier functionality and energy-saving modes for efficient cooling operation.
- Power/Electrical: 208/230V unit with LCDI 6-15P plug; requires compatible 230V outlet.
- Space Coverage: Rated 550–700 sq.ft.
- Efficiency: EER ~9.4 and energy saver options; remote control and 24-hour timer included.
- Note: Verify heating capability with seller if supplemental heat is required.
Buying Guide: Choosing A Through-The-Wall Unit With Heater
Selecting the right through-the-wall air conditioner with heater depends on several technical and practical factors. Below are core considerations to compare units objectively.
Heating Type And Role
Supplemental vs. Primary Heat: Many through-the-wall units provide supplemental electric heat intended for mild cold periods. For primary whole-home heating, evaluate furnace or heat pump options instead. Confirm whether the listed BTU/kW heating output meets your expected needs.
Cooling And Heating Capacity
BTU Matching: Match cooling BTUs to room size. As a rule of thumb, 8,000–12,000 BTU suits small to medium rooms, 14,000–23,000 BTU for larger rooms or open layouts. Verify heating BTUs or kW rating separately; heating output may be lower than cooling capacity.
Electrical Requirements
Voltage And Amperage: Identify if the unit requires 115V or 230V and whether dedicated circuits or specific plugs are needed. Units like Keystone and Durastar often require 230V; ROVSUN may run on 115V. Confirm breaker and outlet compatibility with your property.
Installation And Sleeve/Grille Needs
New vs. Retrofit: Existing wall sleeves or openings make swaps easier. PTAC and through-the-wall models may require sleeves and exterior grilles sold separately. Verify mounting depth, sleeve dimensions, and whether the manufacturer provides a trim kit.
Controls And Smart Features
Remote, Thermostat, And Smart Integration: Remote control, programmable timers, and thermostatic feedback affect comfort and energy use. Some models include smart remotes that sample room temperature. Consider Wi‑Fi or smart-home compatibility if remote access is desired.
Noise And Fan Options
Sound Levels: Wall-mounted compressors can be quieter than window units when properly installed. Check available fan speeds, sleep modes, and noise ratings if bedroom or office use is primary.
Air Quality And Maintenance
Filters And Dehumidification: Washable filters, dehumidify mode, and easy-access slide-out chassis simplify upkeep. Confirm filter access and recommended maintenance intervals.
Energy Efficiency
EER/SEER And Energy Modes: Compare EER values or energy-saving modes. Higher efficiency reduces operating costs; features like Energy Saver, sleep mode, or programmable timers help lower consumption.
Coverage And Room Layout
Square Footage And Ceiling Height: Base BTU recommendations on square footage and adjust for high ceilings, sun exposure, or open-plan spaces. For multi-zone control, consider multiple units rather than oversizing a single unit.
Warranty And Serviceability
Parts, Labor, And Support: Check manufacturer warranty lengths and local service networks. Replaceable parts, straightforward chassis removal, and availability of sleeves or grilles impact long-term ownership.
Comparison Perspectives
- Small Rooms/115V Convenience: Choose 115V models with integrated heaters (e.g., ROVSUN) for bedrooms or apartments without 230V access.
- Large Spaces/High Capacity: For living rooms or open areas, consider 14,000+ BTU or PTAC options (Keystone 23,200 or Cooper & Hunter PTAC) with higher heating output or separate HVAC support.
- Electrical Constraints: If 230V is available, larger supplemental heat and higher BTU cooling options become usable; otherwise choose 115V units sized for the room.
- Installation Flexibility: PTAC units require sleeves and grilles for new installs; packaged through-the-wall units may fit standard sleeves if dimensions match.
Quick Checklist Before Buying: Confirm room square footage, available voltage and breaker capacity, desired heating role (supplemental vs primary), installation sleeve requirements, and whether remote/smart features are necessary.