Summer heat turning your classic car into an oven? A modern car's air conditioning system is a complex beast, usually integrated directly into the dashboard. But what if you have a classic car without factory AC? Installing a full system can be costly and require significant modifications. That's where under dash air conditioners come in. These units offer a surprisingly effective and relatively simple alternative to a complete AC retrofit. This comprehensive guide explores the world of under dash AC units for your classic car, helping you stay cool while preserving your vehicle's originality.
What is an Under Dash Air Conditioner?
Unlike factory-installed systems, under dash air conditioners are self-contained units designed to fit neatly under your car's dashboard. These units typically consist of a compact evaporator, a blower motor, and controls, all integrated into a single housing. They work by drawing in outside air, cooling it, and then blowing it into the cabin through vents. The main benefit? Minimal intrusion into your car's existing structure.
How They Work: A Simple Breakdown
The process is relatively straightforward:
- Air Intake: The unit draws in outside air.
- Cooling: The refrigerant in the system cools the air.
- Blower Motor: The blower motor circulates the cooled air.
- Vents: Cooled air is distributed into the cabin through vents.
Choosing the Right Under Dash AC Unit
Selecting the appropriate under dash air conditioner depends on several factors:
- Vehicle Size: Larger cars require units with higher cooling capacity (BTU).
- Space Constraints: Measure the space under your dashboard carefully. Ensure the unit fits comfortably without obstructing other components.
- Budget: Prices vary considerably, from basic models to those with advanced features like digital controls.
- Installation: Some units are easier to install than others. Consider your DIY skills or whether you'll need professional help.
Benefits of Under Dash Air Conditioners
- Preservation of Originality: Minimal modification to the car's original structure.
- Cost-Effective Solution: Generally less expensive than a full AC retrofit.
- Relatively Easy Installation: Often simpler to install compared to complete AC systems.
- Effective Cooling: Provides noticeable cooling relief, especially in smaller cars.
Potential Drawbacks
- Limited Cooling Capacity: May not be as powerful as a factory-installed system, especially in larger vehicles.
- Noise: Some units can be noisier than factory systems.
- Aesthetic Considerations: The unit is visible under the dash, although this is often minimal and might be improved via custom installation.
Installation: A DIY Project?
While many under dash air conditioners are designed for relatively easy installation, it's crucial to assess your mechanical skills. Some units require more technical know-how than others.
Consider these factors:
- Wiring: Connecting the unit to the car's electrical system.
- Refrigerant Lines: Connecting refrigerant lines properly (often requiring professional assistance).
- Mounting: Securely mounting the unit under the dash.
If you're unsure about any aspect of the installation, it's always best to seek professional help from a qualified mechanic specializing in classic car restoration. A poorly installed system can lead to performance issues or even damage to your vehicle.
Maintaining Your Under Dash Air Conditioner
Regular maintenance is vital to ensure optimal performance and longevity:
- Regular Cleaning: Keep vents and filters clean to prevent airflow restrictions.
- Refrigerant Checks: Periodically check the refrigerant level.
- Professional Service: Schedule professional service every few years to check system functionality.
Conclusion: Beat the Heat in Style
Under dash air conditioners present a compelling option for classic car owners seeking effective cooling without major modifications. By carefully considering the factors outlined above, you can choose and install a system that keeps you comfortably cool while respecting your classic car's character. Remember that choosing the right unit and installing it correctly is paramount for a successful and enjoyable experience!
