6 1/8"L x 5 5/16"W. The spacing of screw holes is approx. 5 1/2"L x 4 3/4"W. ★ Volts: 120V, Frequency: 60 Hz, Power Consumption: 18w. ★ All Components UL Listed. ★Model #WHF100. 【Applicable Models】--- The whf100 heater fan for Dyna-Glo BF30PMDG 30,000 BTU, Dyna-Glo BF30NMDG-4 30,000 BTU, Dyna-Glo BFSS30LPT-2P 30,000 BTU, Dyna-Glo BF20NMDG 20,000 BTU, Dyna-Glo BFSS30NGT-4N 30,000 BTU, Dyna-Glo BF20NMDG-4 20,000 BTU, Dyna-Glo IRSS30NGT-2N 30000 BTU, Dyna-Glo BFSS20NGT-2N 20,000 BTU, Dyna-Glo BF20PMDG-4 20,000 BTU, Dyna-Glo BF10PMDG-4 10,000 BTU, Dyna-Glo IRSS18LPT-2P 18000 BTU, Dyna-Glo BFSS10NGT-2N 10,000 BTU, Dyna-Glo IRSS18NGT-2N 18000 BTU Vent Free Wall Heater.
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