Reznor

Reznor is a manufacturer of gas-fired unit heaters, infrared radiant tube heaters, electric unit heaters, duct furnaces, make-up air units, and air curtains for commercial and industrial heating. Founded in 1888 by George Reznor in Mercer, Pennsylvania. Now operating as Reznor LLC under Nortek Global HVAC (Madison Industries, acquired June 2021). SupplyHouse.com carries 5,500+ Reznor SKUs, primarily replacement parts for legacy UDAP/UDAS series and current UDXC/UBXC equipment.

Product Lines

Reznor UDXC Gas-Fired Axial Fan Unit Heaters (Current)

14 sizes: 30,000–400,000 BTUH. Efficiency: 82–83%. TCORE2 titanium-stabilized aluminized steel heat exchanger. Power-vented and separated combustion convertible. Sizes 30,000–125,000 BTUH: CSA residential garage certification. ETL listed (US and Canada). 115V. LP convertible. Direct replacement for discontinued UDAP and UDAS series. 9-year non-prorated heat exchanger warranty.

Reznor UBXC Gas-Fired Blower Unit Heaters (Current)

Same 14-capacity range (30,000–400,000 BTUH), TCORE2 heat exchanger, separated combustion convertible. For applications requiring higher static pressure or higher CFM. ETL listed.

Reznor UDAP / UDAS (Discontinued, Parts Available)

UDAP (power-vented) and UDAS (separated combustion), 30,000–400,000 BTUH, 82–83% efficiency. Discontinued starting 2021. UDAP-150: 150K BTU input, 124.5K output, 20-1/8"H x 38-3/16"W x 42"D, 172 lbs, 1/2" gas, 5" flue, 115V. Replacement parts available.

Reznor VZ / VZT / VZH Infrared Radiant Tube Heaters

VZ: 40,000–200,000 BTUh, 10–60 ft tube lengths, U-tube and L-tube, CSA Design Certified (ANSI Z83.20/CSA 2.34). VZT: 2-stage with 100% shut-off DSI. VZH (harsh environment): 40,000–175,000 BTUh, wind-rated to 40 mph, stainless steel burner, outdoor approved. Models: VZH-100 (100K BTU/30 ft), VZH-125 (125K/40 ft), VZH-175 (175K/60 ft).

Reznor Electric Unit Heaters

EGHB: Heavy-duty, 3 kW+, 208–600V 1-ph/3-ph, for high-bay/industrial. EUHC: Compact, 3–20 kW (EUHC-3 through EUHC-20). EUH: Multi-stage electric. EGEB: Commercial.

Reznor Model X Duct Furnaces / RP Outdoor Duct Furnaces

Model X: Indoor gravity-vented duct furnace, 75,000–400,000 BTUH, 80% thermal efficiency, Thermocore aluminized SS heat exchanger. RP: weatherized outdoor version. Used with separate blower systems for heating/cooling or make-up air.

Make-Up Air and Air Curtains

PCD: Indirect-fired make-up air/air handler, indoor or outdoor, multiple configurations. RDF: Direct-fired, ANSI Z83.18/Z83.4/CSA 3.7, insulated double-wall galvalume steel. Huracan HACE/HAC: Heated and non-heated air curtains for commercial building entrances.

Why Contractors Specify Reznor

130+ year brand with widespread OEM parts availability. UDXC ETL listed US and Canada; residential garage CSA cert on sizes 30,000–125,000 BTUH. TCORE2 titanium-stabilized heat exchanger with 9-year non-prorated warranty. UDXC is drop-in replacement for discontinued UDAP/UDAS. VZH extends application to outdoor and car wash heating. Extended warranty (9-year HX, 4-year components) on UDXC, UBXC, and legacy UBX/UBZ/UDX/UDZ.

How to Choose a Reznor Heater

Warm air heating in commercial spaces: UDXC (axial fan, open spaces) or UBXC (blower, ducted/high static). High-infiltration large spaces: VZ or VZT infrared. Outdoor/harsh environments: VZH. No gas available: EGHB, EUHC, or EUH electric. Replacing discontinued UDAP/UDAS: UDXC direct replacement. Size input capacity to calculated heat loss.

FAQs

Who owns Reznor and when was it founded?
Founded 1888 by George Reznor, Mercer, PA. Owned successively by ITT Corp. (1963), American Electric (1986), Thomas and Betts (1993), Nortek Global HVAC (2014), and Madison Industries (June 2021). Now operating as Reznor LLC under Nortek Global HVAC.

What replaced the UDAP and UDAS?
The UDXC replaced both. Direct drop-in replacement with compatible mounting footprint. UDAP discontinued Feb/Oct 2021. Parts for legacy UDAP/UDAS available on SupplyHouse.com.

What is TCORE2?
Reznor's titanium-stabilized aluminized steel heat exchanger construction in the UDXC and UBXC. Titanium stabilization improves high-temperature oxidation resistance. 9-year non-prorated warranty.

UDXC vs. UBXC?
UDXC: axial/propeller fan, open commercial spaces, no duct. UBXC: blower fan, higher static pressure for limited ducting. Same 14-capacity range, same TCORE2 HX, both separated combustion convertible.

What is the standard Reznor warranty?
12 months from installation or 18 months from shipment, whichever first. Extended on UDXC/UBXC/UBX/UBZ/UDX/UDZ: 9-year non-prorated HX/burner/flue, 4-year components.