MODEL KFUH ECO2S

high air velocity unit heater

The KFUH ECO2S series high air velocity unit heater is an efficient, dependable unit heater perfectly suited for high ceiling applications such as warehouses, parking garages and docks. The 5-speed, high-capacity motor and blower quietly delivers large volumes of air ranging from 775 to 1540 CFM minimum. With welded mounting channels on the unit, the heater may be mounted at any angle. Safety screens are provided at both the air intake and discharge aperture. The intake filter is replaceable. Thermostat may be ordered separately.

  • Energy Efficient ECM Motor
  • 2-Stage Comfort Heating 15% Savings
  • Heavy Duty Open Coil Element
  • Dual Inlet Industrial Blower
  • Horizontal or Vertical Mount
  • Direct Drive Air Over Type Motor
  • Adjustable Louver Hood (sold separately)
  • Quiet Switching Relays
  • Replaceable Intake Filter
  • 24 Volt Control
  • Ductable on Intake and Outlet
  • Fan-Only Relay
  • 5 Speeds
  • Proudly Made in the USA with U.S. & Global Materials
  • 5-year limited warranty

High Ceilings. No Problem.

Perfectly suited for high ceiling applications such as warehouses, parking garages and docks. The 5-speed, high-capacity motor and blower quietly delivers large volumes of air ranging from 775 to 1540 CFM minimum.

Now That’s Smart!

Mount At Any Angle

With welded mounting channels on the unit, the heater may be mounted at any angle. Safety screens are provided at both the air intake and discharge aperture. The intake filter is replaceable. Thermostat may be ordered separately.

Available Models

Ordering Information

MODELBTUHVOLTSPHASEKWAMPSSTAGE 1STAGE 2# OF ELEMENTSINTERNAL CBMOTOR MOTOR FLAWT. (LBS)SIZE
KFUH2004-1-ECM12.720813.8184 kW*N/A1NO1/3 HP2.957Fig. A
KFUH2005-1-ECM17.120815245 kW*N/A1NO1/3 HP2.957Fig. A
KFUH2008-1-ECM27.320818388 kW*N/A2NO1/3 HP2.957Fig. A
KFUH2010-1-2S1-ECM34.1208110485 kW5 kW2601/3 HP2.965Fig. A
KFUH2012-1-ECM40.92081125812 kW*N/A3601/3 HP2.974Fig. A
KFUH2015-1-2S1-ECM51.22081157210 kW5 kW360+601/3 HP2.974Fig. A
KFUH2018-1-ECM58.9208117.38317.3 kW*N/A460+601/3 HP2.974Fig. B
KFUH2020-1-2S1-ECM68.32081209610 kW10 kW460+601/2 HP2.976Fig. B
KFUH2025-1-2S1-ECM85.320812512015 kW10 kW560+60+601/2 HP2.981Fig. B
KFUH2030-1-2S1-ECM102.420813014420 kW10 kW660+60+601/2 HP2.985Fig. B
KFUH2404-1-ECM13.724014174 kW*N/A1NO1/3 HP2.757Fig. A
KFUH2405-1-ECM17.124015215 kW*N/A1NO1/3 HP2.757Fig. A
KFUH2408-1-2S1-ECM27.324018334 kW4 kW2NO1/3 HP2.757Fig. A
KFUH2410-1-2S1-ECM34.1240110425 kW5 kW2NO1/3 HP2.765Fig. A
KFUH2412-1-2S1-ECM40.9240112505.75 kW5.75 kW2601/3 HP2.774Fig. A
KFUH2415-1-2S1-ECM51.22401156310 kW5 kW360+601/3 HP2.774Fig. A
KFUH2418-1-2S1-ECM58.9240117.37211.5 kW5.75 kW360+601/3 HP2.774Fig. A
KFUH2420-1-2S1-ECM68.32401208310 kW10 kW460+601/2 HP3.976Fig. B
KFUH2425-1-2S1-ECM85.324012510415 kW10 kW560+60+601/2 HP3.981Fig. B
KFUH2430-1-2S1-ECM102.424013012520 kW10 kW660+60+601/2 HP3.985Fig. B
KFUH2435-1-2S1-ECM117.7240134.514423 kW11.5 kW660+60+601/2 HP3.985Fig. B
KFUH4804-1-ECM13.74801484 kW*N/A1NO1/3 HP0.757Fig. A
KFUH4805-1-ECM17.148015105 kW*N/A1NO1/3 HP0.757Fig. A
KFUH4808-1-2S1-ECM27.348018174 kW4 kW2NO1/3 HP0.757Fig. A
KFUH4810-1-2S1-ECM34.1480110215 kW5 kW2NO1/3 HP0.765Fig. A
KFUH4812-1-2S1-ECM40.9480112258 kW4 kW3NO1/3 HP0.774Fig. A
KFUH4815-1-2S1-ECM51.24801153110 kW5 kW3NO1/3 HP0.774Fig. A
KFUH4818-1-2S1-ECM58.9480117.33611.5 kW5.75 kW3NO1/3 HP0.774Fig. A
KFUH4820-1-2S1-ECM68.34801204215 kW5 kW4NO1/2 HP1.176Fig. B
KFUH4825-1-2S1-ECM85.34801255215 kW10 kW5601/2 HP1.181Fig. B
KFUH4830-1-2S1-ECM102.44801306320 kW10 kW660+601/2 HP1.185Fig. B
KFUH4835-1-2S1-ECM117.7480134.57223 kW11.5 kW660+601/2 HP1.185Fig. B

Ordering Information

MODELVOLTSKILO WATTSBTUHAMPSPHASE# OF ELEMENTSMOTOR HPWT. SIZE(lbs.)PURCHASE
KFUH2005-3208517.113.9311/5Fig. A57Buy Now
KFUH2008-3208827.322.2321/5Fig. A57Buy Now
KFUH2010-32081034.127.8321/5Fig. A65Buy Now
KFUH2012-320812.442.334.4331/3Fig. A74Buy Now
KFUH2015-32081551.241.6331/3Fig. A74Buy Now
KFUH2020-32082068.355.5341/2Fig. B76Buy Now
KFUH2025-32082585.369.4351/2Fig. B81Buy Now
KFUH2030-320830102.483.3363/4Fig. B85Buy Now
KFUH2040-320840136.5111382 x 1/2Fig. C152Buy Now
KFUH2050-320850170.7138.83102 x 1/2Fig. C162Buy Now
KFUH2060-320860204.8166.53122 x 3/4Fig. C170Buy Now
KFUH2405-3240/208*517.112 / 10.4*331/5Fig. A74Buy Now
KFUH2410-3240/208*1034.224 / 20.8*331/5Fig. A74Buy Now
KFUH2412-3240/208*1240.928.9 / 25*331/3Fig. A74Buy Now
KFUH2415-3240/208*1551.236.1 / 31.2*331/3Fig. A74Buy Now
KFUH2418-3240/208*17.358.841.6 / 36*331/3Fig. A74Buy Now
KFUH2420-3240/208*2068.348.1 / 41.6*341/2Fig. B85Buy Now
KFUH2425-3240/208*2585.360.1 / 52*351/2Fig. B81Buy Now
KFUH2430-3240/208*30102.472.2 / 62.5*363/4Fig. B85Buy Now
KFUH2435-3240/208*34.5117.783 /71.8*363/4Fig. B85Buy Now
KFUH2440-3240/208*40136.596.2 / 83.3*382 x 1/2Fig. C152Buy Now
KFUH2450-3240/208*50170.7120.2 / 104*3102 x 1/2Fig. C162Buy Now
KFUH2460-3240/208*60204.8144.3 124.9*3122 x 3/4Fig. C170Buy Now
KFUH2470-3240/208*70238.9168.4 / 145.7*3122 x 3/4Fig. C170Buy Now
KFUH4805-3480517.16331/5Fig. A57Buy Now
KFUH4810-34801034.112331/5Fig. A65Buy Now
KFUH4815-34801240.914.4331/3Fig. A74Buy Now
KFUH4815-34801551.218331/3Fig. A74Buy Now
KFUH4818-348017.358.820.8331/3Fig. A74Buy Now
KFUH4820-34802068.324.1341/2Fig. B76Buy Now
KFUH4825-34802585.330.1351/2Fig. B81Buy Now
KFUH4830-348030102.436.1363/4Fig. B85Buy Now
KFUH4835-348034.5117.841.5363/4Fig. B85Buy Now
KFUH4840-348040136.548.1382 x 1/2Fig. C152Buy Now
KFUH4850-348050170.760.13102 x 1/2Fig. C162Buy Now
KFUH4860-348060204.872.13122 x 3/4Fig. C170Buy Now
KFUH4870-348070238.984.23122 x 3/4Fig. C170Buy Now

Factory Installed Options

ADD SUFFIX:DESCRIPTION
-2S12 Stage Control 1-Phase models
-2S32 Stage Control 3-Phase models (5 kW increments only)
-2TSFactory Installed 2 Stage Thermostat - Requires -2S1 or -2S3
-DS32Factory Installed 32 Amp, 3-Pole Non-Fused Locking Disconnect Switch
-DS63Factory Installed 63 Amp, 3-Pole Non-Fused Locking Disconnect Switch
-DS8080 Amp, 3-Pole Non-Fused Locking Disconnect Switch
-DS100100 Amp, 3-Pole Non-Fused Locking Disconnect Switch
-TFactory Installed Stat SPST. Temperature range 40°F to 100°F
-T2Factory Installed Stat (DPST). Temperature range 40F to 100F
-SFFactory Installed Summer Fan Switch
-3/4Sub 3/4 HP Motor for 20kW & 25kW Models Only

Accessories

MODELUPCDESCRIPTIONWEIGHT (LBS.)
KFUH-DIFFUSER15741Standard KFUH Air Diffuser5
KFUH-RD15743Radial diffuser for wide pattern heat dispersion4
KFUH-90D15728Right angle elbow (90°) diffuser with adjustable louvers15
KFUH-90RD15729Right angle elbow (90°) with radial diffuser14
1F85U-22PR190542-Stage, 24V 7 Day Programmable Thermostat 44F-95F (For use with 2-stage heaters)1
1F85U-22NP190442-Stage, 24V Non-Programmable Thermostat 44F-95F (For use with 2-stage heaters)1
1E30N-91055379Thermostat 24V Mercury Free-Vertical 45°F-90°F1

Engineering Specs

Contractor shall supply and install KFUH Series high air velocity unit heaters manufactured by King Electrical Mfg. Company. Heaters shall be of the wattage and voltage as indicated on the plans.

Transformer: Each unit is equipped with a heavy duty low voltage (24 Volt) transformer for the thermostat control circuit.

Heating Elements: Quick heating, long life Ni-Chrome elements are sized to provide proper watt density for maximum heat dissipation by fan-forced air convection currents.

Terminal Block: For single strike field wiring.

Low Voltage Terminal Block: For 24 Volt control.

Air Filter: Convenient access for replacement of standard 16” x 20” x 1” filter.

Motor: Long life, 48 frame capacitor run, thermally protected, permanently lubricated, direct drive motor (no belts to adjust or slip). This low noise, up to 5-speed motor is designed for maintenance-free operation.

Overcurrent Protection: 208 and 240 volt KFUH models have 60 amp circuit breakers with single strike terminal block. 480 volt models have single strike terminal block. Units over 48 amps have 60 amp fusing.

Limit Control: Integral automatic high temperature limit control in each heating element bank prevents the delivery of air at unsafe temperatures. 20-35 kW use a manual reset limit control to completely shut the unit heater off should overtemperature occur.

Fan Relay: Heavy duty fan relay standard with summer fan operation.

Approvals: UL (E41422)