This review delves into the performance of the Blue Star 1.5 Ton 5 Star Inverter AC during an intensive eight-hour test conducted under extreme summer conditions. We subjected the unit to a grueling trial, with external temperatures soaring above 40°C (104°F) and initial room temperatures exceeding 33°C (92°F). The goal was to assess its ability to maintain a comfortable indoor temperature while meticulously tracking its energy consumption throughout the duration of the test. This rigorous evaluation provides a comprehensive understanding of the AC's capabilities in challenging environments.The test involved monitoring key parameters, including room temperature, power consumption (measured in watts and units), and amperage draw. Data was collected at regular intervals to observe trends and assess the AC's efficiency under varying external temperature fluctuations. The results offer a clear picture of the Blue Star 1.5 Ton 5 Star Inverter AC's performance, highlighting its strengths and providing valuable insights for potential buyers considering this model for their cooling needs.
Pros And Cons
- Good performance in hot summer conditions
- Energy efficient (consumed 5.42 units in 8 hours of continuous use)
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Setup and Initial Observations
The Blue Star 1.5 Ton 5 Star Inverter AC was tested under extreme conditions: an outside temperature of 36.2°C and a room temperature of 33.5°C. The AC was set to 26°C with medium fan speed and auto swing.

The initial power consumption was observed using an energy meter, showing a gradual increase in load as the AC started.

This test aimed to monitor the AC's performance over eight hours, noting the power consumption, temperature changes, and overall efficiency in a hot environment.
2-Hour Performance Check
After two hours of continuous operation, the room temperature dropped to approximately 26°C. The AC's power consumption was recorded at 715 watts with 3.2 amperes.

The energy meter indicated a total consumption of 1.29 units over the first two hours.

The outside temperature had risen to above 40°C, highlighting the AC's ability to maintain a comfortable indoor temperature despite extreme external heat.

4-Hour and 6-Hour Performance Check
Four hours into the test, the outside temperature reached 43.5°C, yet the room remained stable at 26.5°C. The AC’s load increased to approximately 900 watts (4 amperes), consuming a total of 2.84 units.

At the six-hour mark, the outside temperature had decreased slightly to around 40°C, and the room temperature remained consistent at 26.5°C.

The total energy consumption was 4.31 units, with a noticeably lower consumption rate in the later hours due to the reduced external temperature.

8-Hour Results and Conclusion
After eight hours, the Blue Star AC had consumed a total of 5.42 units, maintaining a comfortable 26°C room temperature despite fluctuating external temperatures.

The lowest power consumption was observed in the final two hours, demonstrating the AC's energy efficiency under less demanding conditions. The average hourly consumption was 0.67 units.

Overall, the Blue Star 1.5 Ton 5 Star Inverter AC performed well during the eight-hour test, consistently maintaining a comfortable temperature under harsh summer conditions. Its energy efficiency is notable, especially when considering the high ambient temperatures.

