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Solar Products Panel Heaters Voltage Options

Solar Products Flat-faced Radiant Panel Heaters
Solar Products, Inc.
228 Wanaque Ave 
Pompton Lakes, NJ 07442

We are a distributor for Solar Products, Inc.



Solar Products is a custom manufacturer of heaters and can therefore provide the heaters designed for all commercially or industrially supplied voltages - 120, 208, 220, 230, 240, 277, 380, 415, 460, 480, 575, 600 or whatever voltage is required. In many cases, heaters are provided in dual voltage. This helps to reduce the heater stocking requirements. Dual voltage heaters must always be a derivative of two, namely 120/240 or 240/480. There are some cases where three voltages can be available. This is only true for heaters with a minimum of 6 heating elements and 7 terminals. This wiring arrangement can be configured for 3 voltages and dual phase. Consult Solar Products for your specific heater requirements.
Solar Products can manufacture the heaters for single, three, or in some instances dual phase. Consult Solar Products for your specific heater requirements.

Fixed resistance heaters operate independent of frequency with no change in design. Therefore, frequency is not an issue.

The heaters are all fixed resistance. This means that the wattage achieved is a direct result of voltage applied. W= V2/R. If the voltage varies, the heater wattage will vary by a squared relationship of the voltage, unless properly controlled. Proper control makes use of a temperature controller or a power controller that can maintain a constant power output. Solar Products heaters are designed for hot resistance ensuring true power output.

The heaters can be separated into multiple zones in one given panel. An example would be the use of (3) 12" x 24" (305mm x 610mm) zones in a 12" x 72" (305mm x 1829mm) heater or (2) 6" x 48" (152.4mm x 1219mm) zones in a 12" x 48" (309mm x 1219mm) heater. The heater would be divided up in this fashion to accommodate different widths in a web application. Sometimes a heater is divided up into an outer zone and an inner zone. A last option would be to apply multiple oddly shaped zoned to match a specific heating profile.

Another option that is applied to infrared heaters is the use of edge compensation. This approach places a slightly higher watt density along one long edge of a 24" x 36" (610mm x 915mm) heater, as an example. To help compensate for heat loss along that open edge, a higher watt density is constructed into the heater design for reduced edge heat loss.

There is no standard thickness for Solar Products heaters. The most common depth is 3" (76mm). Heaters are manufactured as thin as 1.250" (32mm) and as thick as 6" (152mm). The heater depth is most often determined by available space and/or a required back temperature.

The wavelength output from Solar Products heaters ranges from 2.3 microns to 6 microns. Wavelength is inversely proportional to temperature. That is to say, as temperature goes up, wavelength goes down. All heaters output energy over a range of wavelengths as depicted in the Heater Output Curves. Heater A displays a typical short wave heater. Heater B displays a typical medium wave heater. Heater C displays a typical long wave heater. All of the curves have one common characteristic. If a line were drawn vertically through the peak of the curve, then the area left of the line represents 25% of the total energy output being shorter than the peak wavelength and the area to the right of the curve represents 75% of the energy at a longer wavelength than the peak. Solar Products panel heaters output the majority of the energy in the medium wavelengths when operating at higher watt densities and higher temperatures. When the temperature is reduced below 900F (482C), the majority of the energy falls into the long wavelengths. Medium wavelength ranges from 2-4 microns. Long wavelength ranges from 4-1000 microns. The effective process heating range for long wavelength IR would be from 4-6 microns. Six microns relates to a temperature of 500F (260C). An infrared heater with a surface temperature below 500F (260C) has little use in industrial process heating applications.

The heater below displays examples of the many options available
and the typical positioning of the components. All options, however,
would not be used simultaneously on a production heater.

A Snap-in Mounting Nut F Back Mount Thermowell & Thermocouple
B 4"x4" Electrical Box   G Bayonet Style Thermowell
C Information Tag   H Pyrometer Hole
D Compression Nut   I Mounting Studs
E End of Heater      


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We are a distributor of infrared heaters. Always consult manufacturers installation instructions for proper installation of the products or systems shown on this website. © Copyright 1999-2019 Mor Electric Heating Assoc., Inc.

5880 Alpine Ave. NW - Comstock Park, MI 49321  USA
Tel 616-784-1121 - 800-442-2581 - Fax 616-784-7775

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