Doucette Coaxial Coils are designed for use as Water Cooled Condensers, Water Chillers and in Water Source Heat Pumps. This design is being used by major OEM’s around the world and in the ever expanding wholesale replacement market.

Packless coils utilize a coaxial "tube-in-tube" design. Water flows through the inner tube while refrigerant flows in the annulus between the inner and outer tubes. The key to the high performance of Packless coils lies in the convoluted multi-lead inner tube manufactured in a patented process.

Coaxial Refrigeration coils provide heat transfer improvements in small space applications. Both for fresh water and salt water applications.

Doucette Coaxial Coils are engineered for maximum heat transfer with the incorporation of the most ad-vanced and innovative tubing in the industry. The cop-per or cupronickel tubing is deeply fluted to enhance heat transfer and minimize fouling and scaling.

Our Coaxial Heat Exchangers use our Tru-Twist® inner tubes to create turbulent flow and provide more heat transfer surface in a compact package. More BTU’s per dollar make our coils the industry standard for residential and commercial heating and cooling.

coax-2151-h The Packless COAX-2151-H coil is designed for 1 1 ⁄ 2 ton systems. Packless condenser and water-source heat pump coils provide efficient heat transfer while minimizing fouling.

The Edwards coaxial tube in tube heat exchanger consists of longitudinal, spirally wound applied fins, solder bonded to the inner tube with an outer tube serving as a shell. For best heat transfer systems contact us.

The Edwards coaxial tube-in-tube heat exchanger consists of longitudinal, spirally wound applied fins, solder bonded to the inner tube with an outer tube serving as a shell. Longitudinal fins facilitate maximum heat transfer with low-pressure drop.

Coaxial Coils. Designed for use as water cooled condensers, water chillers and in water source heat pumps. View Products

Packless spiral water-source condenser coils operate efficiently as refrigerant condensers or refrigerant evaporators. This makes them an ideal choice for both water-source heat pumps (WSHP) and water-cooled condenser applications.