The Dimple Plate (DPL) unit is our most versatile, rugged, heavy-duty, yet cleanable plate heat exchanger. The DPL utilizes dimples on each plate to maintain plate spacing and enhance turbulence while operating at lower pressure drop. Our DPL is an all welded plate type heat exchanger with the most robust primary seal weld in the industry.

The all welded construction eliminates cross contamination (leakage) between the gas streams. DPL also provides high percentile heat transfer effectiveness. Variable plate thickness, plate spacing, plate sizes, and air-flow patterns are designed to meet system requirements and fine tune the system to maximize efficiency and cost. Removable access doors are available for cleaning and inspection. The flat plate design, along with the inline dimple pattern, create clear channels for air flow and allow for easy cleaning and maintenance.

Low temperature systems may use aluminized steel or 409 stainless. For corrosive or high temperature applications, various grades of stainless steel alloys are used. Standard materials are 304, 316, 309, and 310 stainless steels. PRE-heat, Inc. is a leading designer and manufacturer of air-to-air heat transfer equipment. The PRE- heat, Inc. team utilizes over 50 years of combined experience. We provide full design and engineering services including, sizing, material selection, and airflow design. The company evolved from a simple idea: "Design and deliver equipment that saves energy and exceeds the customer's performance and quality expectations." This simple philosophy has led us to design many innovative heat exchangers for applications such as:

Because of our years of experience with a variety of applications and materials, we build all systems with robust features such as:

Since each unit is custom designed we can offer a wide range of options, such as:

Pre-Heat Inc.

PRE-heat, Inc., specializes in Custom Industrial air-to-air Heat Exchangers and Packaged Heat Recovery Systems. We have been designing and building industrial, packaged air-to-air heat recovery units for over 23 years.

Our custom designed packaged heat exchanger assemblies include our proprietary designed plate type heat exchangers and shell & tube heat exchangers. By adding inlet and outlet plenums, expansion joints, bypass ducts and dampers, insulation and cladding, our heat exchanger assemblies meet in the field with our OEM customer's fume combustion chambers to form a high quality, high efficiency catalytic or thermal recuperative fume incinerator package.

Even with today's ultra high efficiency regenerative fume incinerators, there is generally enough heat available that our competitively priced insulated exchangers are widely used as secondary exchangers to PRE-heat make-up-air back to the process or the building.