PRE-heat
Air-to-air heat exchanger manufacturing solutions.
Warmatic is the proud international partner of PRE-heat Inc., bringing their world-class industrial heat recovery solutions directly to you.
PRE-heat Inc., based in the heart of U.S. manufacturing, specializes in quality, custom-engineered air-to-air heat exchangers for diverse industrial applications. Whether you need a simple replacement, a complex retrofit, or a brand-new system, Warmatic ensures you get the trusted PRE-heat expertise. Their refined product line includes innovative shell and tube, versatile dimple plate, and rugged vertical cooling tower designs, all built to meet the evolving demands of modern manufacturing.
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Frequently Asked Questions
Find quick answers to the questions you may have about PRE-heat’s air-to-air products.
Plate units – Operating pressure 1 Psig, differential pressure (pressure difference between the two streams) 1 Psig.
Tubular units – Up to 5 Psig
Plate units – 1200°F (uninsulated), 1500°F (insulated)
Tubular units – 1600°F (fresh air outlet temperature limited to 800°F)
A tubular heat exchanger with large ID tubes. PRE-heat recommends that the dirty flow goes through the tubes in a vertical down direction.
With robust construction, thicker gauge materials and the availability of higher-grade alloys, a tubular heat exchanger can provide the best corrosion resistance.
A plate type heat exchanger is the most effective type of air-to-air heat exchanger and will take up the least amount of space.
For moderate dust loads, yes. To reduce the likelihood of fouling, PRE-heat will increase the plate spacing (>1/2”) and use an inline dimple pattern. To help with cleaning, the heat exchanger can be supplied with removable panels which provide access to the heat exchange surfaces for cleaning and inspection. Finally, PRE-heat recommends that the dirty flow goes through the straight through pass (I-pass) in a vertical down direction.
Thermal efficiency is based on the flue temperature, the type of fuel used, ambient conditions and any excess air.
Effectiveness takes into consideration heat capacitance differences between streams, mass flow differences, moisture content and total heat, making effectiveness a better measure of the performance.