Blue Star 0.8 Ton 3 Star Inverter Split AC (Copper, IC309RBTU)

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Build Aspect

The Blue Star IC309RBTU is a 0.8 Ton AC which is suitable for small sized rooms. The overall build quality is good just like any other Blue Star product. The indoor unit is a classy and a elegantly crafted machine with a hidden temp. display and a beautiful gold trim. The AC feels rather expensive and moreover feels sturdily built too. Similarly the outdoor unit and rem-con reek quality. Blue Star has not cut any corners here, the AC is a well designed and a well built unit, there are no 2 ways about it.

Performance Aspect

Moving on to the meat of the product, the cooling, this AC is very efficient and easy on pocket thanks to its 0.8 Ton inverter compressor while being perfectly suited for small rooms. It has a modest cooling capacity of 9008 BTU/hr. However the ISEER rating is decent at 3.92 W/W for a 3 star rated AC. Although company doesn’t list the CFM we would wager it is around ~275 CFM which should be okay for a small sized room. Moreover the noise levels are very low at just 32.5 dB at low fan speeds making the AC literally noise less. As with most if not all this AC just features 2 way auto swing. Additionally its also not shipped or equipped with any sort of PM2.5 filter, to beat the pollution. Be that as it may taking into account the target audience, impressive ISEER this AC seems OK.

Also: Click here to view Daikin AC on Amazon in same price range.


Attractive and premium looks.
Decent cooling, easy on utility bill.
More or less silent at just 32.5 dB
ISEER of 3.92 W/W.


No PM 2.5 filter.
Somewhat expensive.
2 Way manual swing.

Product Details

  • Split AC with inverter compressor: Variable speed compressor which adjusts power depending on heat load. It is most energy efficient and has lowest-noise operation.
  • Capacity – 0.8 Ton : Suitable for 70-100sq feet
  • Energy Rating: 3 star, Annual Energy Consumption (as per energy label): 521.6 units, ISEER Value: 3.92
  • Manufacturer Warranty:1 year on product, 1 year on condenser, 10 years on compressor
  • Copper Condenser Coil: Better cooling and requires low maintenance
  • Special Features: Inverter
  • Refrigerant gas: R32 – Environmental friendly – no ozone depletion potential
  • IDU dimension(71.5*19.4*28.5cms), ODU dimension (72*27*30.8cms) & IDU 7.4(kg) and ODU Weight 21.7(kgs)
  • Included in the box : For Split AC : Indoor Unit, Outdoor Unit, Remote Control, User manual, Warranty Card.

Product description

Refined, and redesigned with Eco-Friendly R32 refrigerant,the all-new 3 Star RBTU Inverter Split Air Conditioners delivers ultimate cooling performance, with exceptional energy savings.

From the manufacturer


Blue Star 0.8 Ton 3 Star Inverter Split AC (IC309RBTU) Full Specifications

Brand Blue Star
Model 0.8 Ton 3 Star Inverter Split AC (IC309RBTU)
Model Name IC309RBTU
Type Split
Capacity 0.8 Ton
Star Rating 3 Star
BEE Rating Year 2020
Colours White
Cooling and Heating No
Cooling Capacity 2640 W / 9008 BTU/ hr
Compressor Single Rotary
Operating Modes Auto, Cool, Fan, Dry
Dehumidification Yes
Condenser Coil Copper
Remote Control Yes
Indoor W x H x D 715 mm x 285 mm x 194 mm
Indoor Unit Weight 7.4 kg
Outdoor W x H x D 720 mm x 270 mm x 308 mm
Outdoor Unit Weight 21.7 kg
Performance features
Indoor Noise Level Low – 32.5 dB
Turbo Mode Yes
ISEER 3.92 W/W
Power features
Power Requirement AC 230 V, 50 Hz, 1 Phase
Power Consumption 521.6 W
Other Power Features Powerful Mode, Self Diagnosis
Body and design features
Evaporator Fin Type Hydrophilic Gold Fins
Condenser Fin Type Hydrophilic Gold Fins
Air flow and filter features
Anti-bacteria Filter No
Dust Filter Yes
Remote control features
LED Backlit Buttons Yes
Battery Type AAA Batteries
Convenience features
Auto Restart Yes
Quiet Mode Yes
Sleep Mode Yes
Memory Feature Yes
Self Diagnosis Yes


  1. Bejoy Ghosh

    Cheap and perfect for small rooms. Blue star give good service also, and I got the outdoor stand at discounted rate from them.

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