Technical content reviewed November 13, 2026 · Tillman & Associates
Where RGX fits
RGX is a fan-forced electric unit heater developed for heavy-duty industrial space heating. It is a candidate when the project calls for more substantial construction than a regular-duty heater, subject to the actual environment and installation requirements.
Identify whether the request concerns personnel comfort, equipment protection or replacement of an existing heater. Those details help frame the output, placement and control review.
What distinguishes the construction
The catalog describes a heavy-gauge steel cabinet, finned tubular elements, a balanced aluminum fan and a full-size control panel. The motor sits outside the element bundle. Horizontal and vertical airflow arrangements are listed.
The family includes contactor and thermostat packages, fan-only provisions and optional factory features. A feature in the family catalog is not confirmation that it is included in an existing unit; send the complete ordering code and label.
A source conflict that matters
The catalog lists humid and washdown application examples, but the linked owner’s manual prohibits operation in wet, humid and corrosive environments. Do not use the catalog examples as approval for those conditions. Tillman can request written factory clarification for the exact proposed construction.
The manual also prohibits hazardous atmospheres and sets a 104°F (40°C) maximum ambient. Heavy-duty construction and an optional enclosure treatment do not establish hazardous-location certification.
Controls, mounting and replacement
State the required voltage, phase, frequency and control sequence. The catalog distinguishes standard split loads on larger units from optional split-load construction on certain smaller units; the exact circuit arrangement needs confirmation.
Provide mounting direction, structural support, access space and thermostat location. For replacements, photograph the heater, controls and bracket. Existing wiring or mounting hardware should be reviewed against the new unit rather than assumed reusable.
What to send Tillman
- Required heat output and purpose of heating
- Voltage, three-phase supply and frequency
- Dry indoor exposure details and any proposed special conditions
- Horizontal or vertical airflow, mounting height and support
- Control stages, thermostat, disconnect and fan-only request
- Existing model, wiring diagram, bracket photos and quantity
Common questions
Is RGX explosion-proof?
No. Its owner’s manual prohibits hazardous atmospheres.
Can RGX be installed in a washdown area?
The catalog and owner’s manual conflict on wet/humid applications. Obtain written factory clarification for the exact construction before selection.
How does RGX differ from RGE?
RGX is the heavy-duty family with horizontal or vertical airflow; RGE is the regular-duty horizontal-airflow family.