The heater core reheats a portion of the air cooled by the evaporator by exchanging heat with engine-cooling water. The reheated air is mixed with the remaining evaporator-cooled air and the mixed air is blown into the vehicle cabin.
DENSO Technology – Leading the World
In 2002, DENSO introduced a smaller, lighter heater core - 27 mm in width - achieving the same performance as the company’s conventional 46 mm heater core. The new heater core has the world’s thinnest tube plate of 0.2 mm.
Benefits and Features
Small size (thin width)
- Thinner tube (1.3 mm) and smaller fin height (3.9 mm)
improves heat exchange efficiency.
Light weight
- The tube’s zinc (Zn) diffusion layer improves corrosion
resistance, resulting in very thin tube plate thickness
(0.2mm).