In today’s pursuit of healthy, comfortable, and energy-efficient living environments, the “Five-Constant System” (constant temperature, humidity, fresh air, quietness, and cleanliness) has become the gold standard for high-end residences. However, with installation costs often exceeding tens of thousands of dollars and complex construction requirements, it remains out of reach for most average households.
Is there a way to retain the convenience of your existing air conditioner while achieving “Five-Constant” comfort at a fraction of the cost?
The answer is yes—huawa’s “AC Companion” is precisely such an “enhancement patch” designed specifically for traditional split air conditioners.
What Is the “AC Companion”?
The AC Companion is not a standalone new air conditioner. Instead, it’s an auxiliary heat-exchange module that seamlessly integrates with your existing split AC system. Through an intelligent combination of a plate heat exchanger, a circulation water pump, and PE radiant pipes embedded under the floor, it upgrades a conventional convective-only air conditioning system into a hybrid “convection + radiation” comfort solution.
In simple terms: your current air conditioner stays exactly as it is—you just add an AC Companion, and instantly gain a “Five-Constant”-like experience with gentle thermal sensation, uniform temperatures, and higher efficiency.
Air Conditioner + AC Companion = Comfort Upgrade × Energy Efficiency Leap
During winter heating, high-temperature refrigerant first flows through the AC Companion, transferring part of its heat to the water loop beneath the floor for radiant floor heating—warming you from the feet up. The remaining heat is then delivered via the indoor unit through convection, ensuring evenly distributed warmth. Crucially, this process significantly increases refrigerant subcooling, enabling the entire air conditioning system to operate efficiently and stably even in extremely cold conditions.
In summer cooling mode, the refrigerant first absorbs heat in the indoor unit for primary cooling, then enters the AC Companion to utilize residual cooling capacity for radiant floor cooling. This “cool from above, refresh from below” approach dramatically reduces vertical temperature gradients and eliminates the dryness and discomfort caused by direct airflow from traditional ACs. Meanwhile, precise control of suction superheat not only boosts energy efficiency but also effectively protects the compressor’s lifespan.
Why Is It a “Low-Cost Upgrade”?
Traditional “Five-Constant Systems” require entirely new installations of ductwork, hydronic units, fresh air systems, dehumidifiers, and more—leading to long construction timelines and high costs. The AC Companion is fundamentally different: it connects directly to your existing split air conditioner without replacing the outdoor or indoor units and without damaging existing interior finishes. You only need to embed PE pipes under the floor (or retrofit existing underfloor heating loops) to achieve a qualitative leap in comfort.
For new constructions, radiant piping can be installed during the renovation phase. For homes with existing underfloor heating, the same piping can often be reused. Installation is straightforward, investment is controllable, and the result is truly “big comfort from a small upgrade.”
Real User Feedback: Quiet, Uniform, and Energy-Saving
In a 120㎡ residence in Beijing, a homeowner retained their original branded split air conditioner and added the AC Companion. In winter, indoor temperatures stabilized at 22°C ± 0.5°C with warm, draft-free comfort rising from the floor. In summer, the cooling felt gentle and even, and electricity bills dropped by approximately 18% compared to previous years. The homeowner remarked: “I used to think ‘Five-Constant’ was only for luxury homes. Now I realize—even my ordinary air conditioner can become smart.”
Conclusion: Unlock the “Five-Constant” Potential in Every Air Conditioner
The AC Companion isn’t about replacement—it’s about empowerment. It respects your existing investment in air conditioning and unlocks hidden performance potential through clever thermodynamic design and intelligent control. Whether you’re building a new home or renovating an old one, as long as you have an air conditioner, you can easily step into “Five-Constant” living.
The future is here—and it doesn’t require waiting. Equip your air conditioner with an AC Companion and embrace a new era of comfort and efficiency.
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