Why Jet Coil Cleans Matter for HVAC/R Efficiency in Hawaii

Hawaii’s tropical climate is as beautiful as it is challenging for HVAC systems. The salt-laden trade winds, high humidity, and volcanic particulates (vog events) create one of the harshest environments for coils, accelerating fouling and corrosion. With systems running almost year-round, efficiency losses compound quickly into higher energy bills and shorter equipment life. That’s why Jet Coil Cleans are not just beneficial in Hawaii—they’re essential.

The Science of Coil Fouling

Coils are designed with dense aluminum fins to maximize heat transfer between refrigerant and air. But in Hawaii, they quickly collect:

• Salt deposits that corrode fins and reduce thermal conductivity.

• Volcanic ash and dust that embed deep into the coil matrix.

• Biofilm and mold, fueled by humidity, that add insulation layers and release allergens.

Even a thin layer of dirt as small as 0.002 inches can reduce coil efficiency by 20–30%, according to ASHRAE studies. This forces blowers to pull harder against airflow resistance and compressors to operate at higher head pressures, driving up kW/ton and stressing components.

Why Jet Coil Cleans Work Better

Surface rinses and chemical sprays typically only clean the outermost fins. In contrast, Jet Coil Cleans use controlled high-pressure water streams to flush contaminants through the entire coil depth without damaging fins. This restores:

• Original heat transfer coefficients

• Normal airflow resistance levels

• Stable refrigerant superheat and subcooling values

Real Efficiency Gains

After Jet Coil Cleans, facilities in Hawai‘i typically see:

• 5–15% compressor amperage reductions due to lower head pressure.

• Improved coil delta-T, enhancing system cooling capacity.

• kW/ton reductions of 0.3–0.6, per ASHRAE TC 8.4 case studies.

• Longer system life with reduced stress on motors and compressors.

• Cleaner indoor air quality, as biofilm and microbial growth are removed.

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Case in Point: Hawaii Hotels

At the Marriott Kauai Beach site, restoring clean heat exchange surfaces through advanced maintenance measures saved 182,000 kWh annually, equal to about $72,000 in electricity savings at local utility rates (source: Ecolab). While this example focuses on condenser tube cleaning, the principle is the same: fouling costs money, and restoring coil cleanliness pays back quickly.

Why Alltemp’s Jet Coil Cleans Are the Smart Choice

Many service providers in Hawai‘i offer coil cleaning, but not all methods penetrate deep enough—or are priced affordably enough—to justify regular scheduling. Alltemp provides Jet Coil Cleans at a lower cost than most competitors, making it easier for homeowners and businesses to adopt them as part of routine preventive maintenance. The result: lower electric bills, longer system life, and better indoor comfort, without paying premium service rates. Call (808) 213-7533 to inquire about our rates and scope of service.

Alternative Terms You May Hear

Jet Coil Cleans are sometimes referred to as:

• High-pressure coil cleaning

• Hydro-jet coil cleaning

• Pressurized coil flushing

• Deep-penetration coil cleaning

Regardless of the term, the goal is the same: restore system efficiency by removing embedded fouling.

Conclusion

In Hawaii, coil fouling isn’t seasonal—it’s constant. Salt, humidity, and particulates continuously attack system performance. That’s why Jet Coil Cleans deliver some of the best ROI of any HVAC maintenance practice. With Alltemp offering this service at lower rates than most competitors, there’s no reason to let dirty coils drain energy, increase costs, and shorten your system’s life.