Wattco flanged heaters range in size from 4 to 40 inches, in standard ANSI 150 pound and 300-pound configurations. In addition, applications requiring 600-pound configurations can be provided upon request. Flange material typically is steel or stainless steel. Tubular elements are optimally configured on the flange for the best possible heat dispersion. Thermowells can also be installed into the heating element array, one, two or a single large thermowell, depending upon the requirements and application. They provide a sealed enclosure to install a temperature probe or sensing device. The elements can be silver brazed; TIG welded or use compression fittings as a means of attaching to the flange.

Terminal enclosures can be constructed for various needs including NEMA 1 (standard housing), NEMA 4 (moisture resistant) and NEMA 7 (explosion proof). Pilot duty thermostats can also be fitted within the terminal enclosure.

Flanged heaters are used anywhere there is a high demand for heat, often in large capacity tanks. The U.S. Military uses heaters http://www.usmilitary.com for many of their military applications including their nuclear submarines and naval heater requirements. Other government departments (ie. http://www.defense.gov/) use load banks as breaking systems for special requirements. They can be installed vertically or horizontally, depending on their uses. They can be used in circulation heaters, again where the demand for heat is high.

For commercial applications, small flanged heaters are traditionally used in steam and hot water boiler applications, to heat buildings employing a hot water radiator system. They are often arranged in multiple wattage and configuration arrays, to best meet the boiler application and demands on the system. The flange size typically ranges from 2 to 4 inches square. The flanges are bolted directly to mounting bosses on the boiler. They offer a compact size and design, without the bulk of larger flanges. Wiring is simple, quick and lends itself readily to single or three phase hook-ups; using industry standard ANSI 10-32 style connections.