Diversified Heat Transfer Inc.

Diversified Heat Transfer (DHT) is a leading engineering and manufacturing company of heat exchange equipment and systems for the residential, commercial, and industrial markets. With more than 80 years of experience, DHT can design, build, and manufacture innovative, technology-driven products that provide flexible, high-quality, and cost-effective solutions for a wide variety of applications.

  • Semi-instantaneous Water Heaters
  • Indirect Water Heaters
  • Tank and Plate Storage Water Heaters
  • Unfired Steam Generators
  • Shell and Tube Heat Exchangers
  • Plate and Frame Heat Exchangers
  • HVAC Coils
  • Replacement Tube Bundles
  • Custom Skid Packaged Systems


SP Series: Indirect Water Heater

The packaged systems utilize simple, real-time load tracking and responsive controls to maintain accurate hot water temperature under various load patterns.

SS Series: Unfired Steam Generator

The SS Series of Unfired Steam Generators (USG) from DHT provide engineers and facility professionals with superior performance in commercial and institutional applications.

ST Series: Semi-Instantaneous (Steam-to-Water) Water Heaters

The DHT ST Series of semi-instantaneous water heaters are the engineered solutions for engineers and facility owners/managers who need high recovery capacity in a small space.

STP Series: Water Heater

The DHT STP Series is a fully packaged storage water heater that utilizes a double-wall brazed plate heat exchanger to optimum heat transfer by generating more efficient and faster hot water replenishment of the storage tank.