This line of Ruffneck heater-exchanger unit heaters is designed for rugged industrial applications for steam, water, or glycol circulating systems.

The FR (frost resistant) series is designed primarily for steam applications that are subject to freezing -conditions. During an accidental freeze-up, the headers are designed to accommodate ice expansion.

The HP (high pressure) series is designed for pressures up to 400 psi in single-pass and multi-pass configurations. Multi-pass units greatly improve performance with liquids.

The FX4 series of liquid-filled heaters is certified or UL listed for use in hazardous locations such as oil refineries, petrochemical plants, pulp & paper mills, hazardous waste storage facilities, and wastewater treatment plants where explosive gases or dusts are present.

The FX4 utilizes a unique evacuated core which produces a higher air temperature rise, even heat distribution, and a faster warm-up. FX4 heaters range from 2,5 to 35 kW. A three-year warranty and 120 volt controls are standard. The FX4 is available with optional built-in disconnect switch and built-in thermostat.

Ruffneck's advanced horizontal heaters are designed for rugged industrial applications and are available in 32 models from 6,000 to 1,200,000 BTU/hr.

With a maximum operating pressure and temperature rating of 450 psi and 650 degrees F respectively, the AH series is perfect for steam, circulating hot water, and glycol heating system or liquid cooling applications that include: