Upgrading your vehicle’s comfort with an efficient universal under dash heater or air conditioner is a smart choice for year-round climate control. These compact systems fit under the dash, providing effective heating and cooling without extensive modifications. Our selection highlights versatile, energy-saving units tailored for cars, trucks, RVs, and other vehicles. Below is a summary table of top products to help you find the perfect fit for your needs.
| Product | Brand | Key Feature | Heating Capacity (BTU) | Cooling Capacity (BTU) |
|---|---|---|---|---|
| Kit Universal A/C Under Dash Heat & Cool 404-000 DBSL | Generic | 4-Way Aluminum Coil with 12,700 BTU | 12,700 | Not Specified |
| Saihisday 12V Car Truck Under Dash A/C Evaporator Assembly | Saihisday | 3 Speed, 6 Ports, Electrical Thermostat | 14,360 | 16,297 |
| Upgraded 12V Universal Auxiliary Heater Underdash Heat | Sallurmose | Energy-Saving with Speed Control Switch | Not Specified | Not Applicable |
| TdiriNar 12V Universal Under Dash A/C Evaporator Heater | TdiriNar | 3-Speed Adjustable Airflow, High Efficiency | Not Specified | Not Specified |
| 12000 BTU 12V Under Dash Air Conditioner with Heater | hiberry | Dual Mode Heating & Cooling, Rapid Temp Control | Not Specified | Not Specified |
Kit Universal A/C Under Dash Heat & Cool 404-000 DBSL 12,700 BTU
This universal under dash heater and cooler features a 12,700 BTU capacity and a 4-way aluminum coil system providing efficient cooling and heating. It includes a 1.5-ton thermostat, a rotary 3-speed blower switch, and comes with mounting brackets, drain hose, and T fittings for easy installation. Its compact dimensions (L15¾” X D12½” X H6″) make it suitable for various vehicle dashboards. The 10′ flexible duct allows customized airflow, and the parallel flow condenser uses micro-tube technology for enhanced heat exchange.
Saihisday 12V Car Truck Under Dash A/C Evaporator Assembly
The Saihisday under dash unit offers superior durability with universal fitment designed for vehicles originally lacking A/C. It operates on a 12V, 7.6A power supply and features an electrical thermostat for precise temperature control. Heating capacity reaches 14,360 BTU, while cooling capacity peaks at 16,297 BTU. The system has 3 speeds and 6 ports to maximize airflow for both heating and cooling, making it suitable for trucks and cars.
Upgraded 12V Universal Auxiliary Heater Underdash Heat with Speed Switch
This energy-saving under dash heater by Sallurmose includes mounting brackets and a speed control switch for easy driver customization. It’s designed for a wide range of vehicles including trucks, minivans, excavators, and harvesters. The heater focuses solely on warmth, providing a reliable heating solution without consuming excessive power. Its universal compatibility and compact size make installation straightforward in various vehicle types.
TdiriNar 12V Universal Under Dash A/C Evaporator Heater Kit
The TdiriNar kit features a high-quality 12V air conditioning evaporator and 3-speed adjustable airflow for personalized comfort. The cooling evaporator uses a 22-pass 4-way aluminum coil, while the heating element uses a 6-pass 2-way coil, optimizing efficiency. This compact system is ideal for campers, boaters, and vehicles without factory A/C, offering space-saving installation and low energy consumption while providing effective temperature control.
12000 BTU 12V Under Dash Air Conditioner with Heater – Universal Dual Mode
This hiberry universal unit offers dual-mode heating and cooling for seamless year-round comfort. It rapidly adjusts cabin temperatures from hot to cool within minutes using a rugged 20cc scroll compressor and titanium-coated evaporator coils, which resist corrosion for durability. The high-speed 3000-RPM motors ensure instant airflow, while the compact design fits under seats or in tight dashboard spaces without compromising performance.
Buying Guide for Universal Under Dash Heaters and A/C Units
Choosing the best universal under dash heater or air conditioner involves several important considerations to ensure you get a unit that fits your vehicle and climate needs effectively:
Heating and Cooling Capacity
Look for the BTU ratings for both heating and cooling to match your vehicle size and climate expectations. Higher BTU ratings provide more powerful temperature regulation but may consume more energy.
Power Supply and Compatibility
Most under dash units operate on 12V DC power, compatible with car or truck electrical systems. Verify the amperage requirements to ensure your vehicle’s electrical system supports the device.
Airflow Control and Speed Settings
Multiple blower speed settings provide better control over cabin airflow and comfort. Models with adjustable airflow ports offer customized vent directions.
Installation and Mounting
Universal kits often come with mounting brackets, ducts, and hoses. Check the ease of installation, space requirements, and whether additional accessories are needed for your specific vehicle.
Energy Efficiency and Power Consumption
Energy-efficient models reduce battery load and fuel consumption. Some heaters utilize vehicle coolant circuits for warmth, improving efficiency and environmental friendliness.
Noise Levels
Lower decibel (dB) ratings ensure quieter operation, important for comfort, especially on long journeys.
Durability and Materials
Look for corrosion-resistant components like aluminum coils and titanium coatings, as these extend product life and performance in harsh conditions.
Additional Features
- Thermostatic control for automatic temperature regulation
- Dual-mode systems providing both heating and cooling
- Compact design to suit limited mounting space
- Included accessories such as ducts, switches, and hoses
By considering these factors, you can select a universal under dash heater or air conditioner that best suits your vehicle type, climate challenges, and personal comfort preferences.