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KUSATSU KBF-331RGSC vs MITSUBISHI ELECTRIC V-251BW-HK Comparison

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KBF-331RGSC V-251BW-HK

  • KBF-331RGSC requires a 180 mm W × 180 mm H window installation opening; V-251BW-HK requires 275 mm W × 300 mm H.
  • KBF-331RGSC lists 1270 W in its product title and a 1200 W PTC ceramic heater; V-251BW-HK lists 1450 W in its title and 1450 W high-mode heating consumption.
  • KBF-331RGSC specifies human detection, a 10-minute to 12-hour timer, and 24-hour preset on/off scheduling; these features are not specified for V-251BW-HK.
  • V-251BW-HK explicitly lists bathroom drying, laundry drying, cooling, and 24-hour ventilation; these operating modes are not specified for KBF-331RGSC.
  • Both include wireless remote controls. V-251BW-HK specifies IPX7 water resistance for its remote; KBF-331RGSC does not specify a remote water-resistance rating.
itemKBF-331RGSCV-251BW-HK
Product typeWindow-type thermo ventilator
Power stated in product title1270 W1450 W
Heater type and heater power1200 W PTC ceramic heaterNot specified
Heating-mode power consumptionNot specifiedHigh: 1450 W; Low: 800 W; Breeze: 1300 W
Drying-mode power consumptionNot specifiedHigh: 1400 W; Low: 780 W; Dry Cool/Wind: 36 W
Cooling-mode power consumptionNot specifiedHigh: 34 W; Low: 14 W
Ventilation-mode power consumptionNot specifiedHigh: 35 W; Low/24-hour ventilation: 13 W
Heating rated currentNot specifiedHigh: 6.5 A; Low: 3.7 A; Breeze: 6 A
Drying rated currentNot specifiedHigh: 6.4 A; Low: 3.7 A; Dry Cool/Wind: 0.17 A
Cooling rated currentNot specifiedHigh: 0.16 A; Low: 0.12 A
Ventilation rated currentNot specifiedHigh: 0.16 A; Low/24-hour ventilation: 0.11 A
Heating circulation airflowNot specifiedHigh: 180 m³/h; Low: 180 m³/h; Breeze: 110 m³/h
Drying circulation airflowNot specifiedHigh: 160 m³/h; Low: 160 m³/h; Dry Cool/Wind: 230 m³/h, including ventilation
Cooling circulation airflowNot specifiedHigh: 180 m³/h; Low: 110 m³/h
Drying ventilation airflowNot specifiedHigh: 30 m³/h; Low: 30 m³/h
Ventilation airflowNot specifiedHigh: 220 m³/h; Low/24-hour ventilation: 120 m³/h
Heating noise levelNot specifiedHigh: 45 dB; Low: 45 dB; Breeze: 34 dB
Drying noise levelNot specifiedHigh: 46 dB; Low: 46 dB; Dry Cool/Wind: 46 dB
Cooling noise levelNot specifiedHigh: 45 dB; Low: 34 dB
Ventilation noise levelNot specifiedHigh: 45 dB; Low/24-hour ventilation: 32 dB
Vertical airflow adjustmentAutomatic swing within a 60°–120° rangeElectrical automatic baffle oscillation up to 60°
Horizontal airflow adjustmentManual adjustment within a 60°–120° rangeLeft and right louvers individually adjustable up to a 90° wind-blow direction
Wireless remote control included✅ Included
Remote water-resistance ratingNot specifiedIPX7
Human detection✅❌ Not specified
Programmable operating timer10 minutes to 12 hoursNot specified
Preset on/off schedulingWithin a 24-hour cycleNot specified
Anti-bacteria filter✅❌ Not specified
Dual Barrier Coating❌ Not specified✅ Blower contamination protection
Bathroom heating✅
Bathroom drying❌ Not specified✅
Laundry drying❌ Not specified✅
Cooling mode❌ Not specified✅
24-hour ventilation❌ Not specified✅
Dry Cool mode❌ Not specified✅
Window installation opening, W × H180 mm W × 180 mm H275 mm W × 300 mm H
Front cover dimensions, W × H300 mm W × 280 mm HNot specified
Size listed in Attributes280 × 300 mm; axes not specified275 × 300 mm; axes not specified
Motor and fan configurationSingle motor and fanNot specified
Country of originJapan
Warranty period2 years
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