Learn about electric heat and types of electric heaters as well as heat transfer, heat losses, basic heat equations, specific applications with example and watt density in a five page PDF.
The information in this article is presented to assist OEM’s, Users, Replacement, Maintenance, Marketing, etc. (read more)
Hotwatt Inc., made in USA, is a quality supplier to OEM's in the industrial, medical, commercial, packaging, instrumentation, aviation, transportation and military fields. Products include cartridge, air process, immersion, strip and finned strip, tubular and finned tubular, band, crankcase, foil, flexible glasrope and ceramic heaters. (read more)
Hotwatt, made in USA, began with open coil heating elements and now includeds: cartridge, air process, immersion, strip and finned strip, tubular and finned tubular, band, foil, flexible glasrope®, crankcase and ceramic heaters. We are dedicated to the design and manufacturing of resistance heating elements for a variety of OEM, industrial, medical, commercial and military applications. (read more)
Hotwatt, made in USA, MOST POPULAR PRODUCT IS THE CARTRIDGE HEATER. Designed for maximum: Watt density, temperature, heat transfer, and heater life.
Maximum surface temperatures up to 1400°F.
Basic designs are readily adaptable to a wide variety of applications, special requirements, sizes and ratings. (read more)
Hotwatt manufactures electric heating elements including Superwatt and Standard Cartridge, Air Process, Immersion, Strip and Finned Strip, Tubular and Finned Tubular, Band, Foil, Flexible Glasrope, Crankcase and Ceramic heaters. We are dedicated to the design and manufacturing of resistance heating elements for a variety of OEM, industrial, commercial and military applications. (read more)
Hotwatt Precision Cartridge Heaters provide localized heat to restricted work areas requiring close thermal control. (read more)
Hotwatt seamless stainless steel sheath Strip Heater provides clean, dependable heat with sheath temperatures up to 1200°F and watt densities up to 40 watts per square inch. Can be provided with aluminum or stainless steel fins for air heating applications. (read more)
IMMERSION HEATERS ARE IDEALLY SUITED FOR HEATING VARIOUS LIQUIDS. THEY ARE AVAILABLE IN VARIOUS SHEATH MATERIALS AND WATT DENSITIES TAYLORED FOR YOUR SPECIFIC APPLICATIONS. UNITS MAY BE SUPPLIED FOR SINGLE, THREE PHASE OR THREE HEAT OPERATION. THE LEAD END OF THE UNIT MAY BE SEALED FOR EXTREME ENVIRONMENTAL CONDITIONS. (read more)
Low to Medium Watt Density - The Hotwatt Square and Rectangular Cartridge Heater is designed to distribute maximum heat within a desired area. Because they are completely enclosed, square units will furnish more usable heat for a given wattage than a comparable strip heater attached to the exterior of a mod, platen, or other equipment. (read more)
Tubular heaters have built in resistance to impact, vibration, corrosion and the temperature extremes. The heater is swaged, reducing the diameter of the sheath and compacting the insulation. This insures rapid heat transfer and holds the coil in position for forming. Many diameters, sheath materials and configruations are available. (read more)
Foil heaters are a self contained one piece assembly. A resistance element is laminated between two layers of aluminum foil. Operating temperatures up to 300 Deg. (150 C.). Sizes range from 1.25" to 60" wide with lengths of 4" and up. GLASROPE heaters are flexible heaters available in various lengths, sheath materials and terminations. Operating Temperatures up to 900 DEG. F (485 C.). (read more)
Crankcase heaters are used to overcome the problem of migration and condensation of refrigerant in the crankcases of compressors used in air conditioning and heat pump systems. They are designed to keep the crankcase oil at a temperature higher than the coldest part of the system to prevent migration. (read more)