The invention provides an apparatus, a method, and a finned tube.

This finned tube heat exchanger (100) is provided with a fin (31) and a heat transfer tube (21).

B-Tube 500 Non-thermal cost effective fin tube 1 3/4" (44.5 mm) x 4" (101.6 mm) profile

The fin tube type heat exchanger (1) comprises a heat transfer fin (2) and a plurality of heat exchanger tubes (3).

The invention provides an apparatus, a method, and a finned tube.

The current invention includes a tube with a helical fin extending from the tube's outer surface The fins and tube are monolithic, or formed of one part, with a channel defined between adjacent fins.

Each fin-tube element is an integral extrusion and comprises tubes portions (61) for carrying heat exchange fluid and fin portions (62) for dissipating heat.

The invention is a bi-metal or multi-metal fin (10) and method for making the same for use on a finned heat exchange tube (20).

There is provided a novel tracheostomy tube flange.

A flat tube (33) is inserted into a tube insertion part (46) of a fin (36), and joined thereto by brazing.

This finned tube heat exchanger (100) is provided with a fin (31) and a heat transfer tube (21).

The current invention includes a tube with a helical fin extending from the tube's outer surface.

Each tube contains a glass outer tube and a metal absorber tube attached to a fin.

Provided is a tube for use in a heat exchanger, and having an inner fin built in.

Each tube contains a glass outer tube and metal absorber tube attached to a fin.