Lightweight, Flat, and Durable: The Holy Trinity of Ideal HVAC Mounting Pads

In many areas of life, a solid foundation is the surest path to success. Whether it’s in our professional or personal lives, the absence of a firm and dependable base to start from can frustrate our best-laid efforts and lead to costly issues. This is certainly the case when it comes to physical structures, as well:  the buildings we live and work in, and the many elements that go into making them sound and comfortable spaces, require a strong foundation as well. 

When it comes to HVAC systems, one of the considerations that’s oft-overlooked by purchasers is the quality of the mounting pad that the HVAC condenser sits on top of. These pads serve as the foundation for condensers, providing a stable base while offering protection against unlevel surfaces and ground contact. A well-designed mounting pad also ensures that HVAC units remain level, allowing compressors and condenser coils to effectively manage oil levels within the unit — and in so doing, enhance the efficiency and longevity of HVAC systems.

But just what makes a mounting pad a truly solid foundation? Three things: it must be lightweight, flat, and durable. This is the holy trinity of ideal HVAC mounting pads, and we’re going to explore each component of this combination in today’s blog – and why plastics are innovative materials that make this wonder-pad possible.

I. Lightweight: the first element of a solid HVAC mounting pad 

The weight of an HVAC mounting pad plays a critical role in ensuring its effectiveness. A lightweight pad is easier to transport, handle, and install, reducing the physical strain on technicians during setup. But the advantages of a lightweight design extend beyond convenience. 

Plastics, particularly high-density polyethylene (HDPE), are a material of choice in achieving lightweight HVAC mounting pads. HDPE combines strength with a lightweight composition, striking the perfect balance necessary for a robust yet manageable pad. This material makes it easier than ever to transport and position the pad, all while upholding the structural requirements essential for optimal system performance.

II. Flat: the second element of a solid HVAC mounting pad 

Flatness in a mounting pad is another crucial factor in providing a dependable foundation for an HVAC system. A flat pad ensures uniform weight distribution, preventing stress concentrations and ensuring the condenser remains level. When an HVAC unit is properly leveled, the compressor and condenser coils can perform efficiently, which ensures long-term functionality. A flat pad also minimizes vibrations, reduces noise, and prevents unnecessary stress on the equipment, resulting in a smoother and quieter operation. Moreover, a level mounting pad facilitates easier maintenance and service, ensuring that technicians can access and work on the unit with precision and safety.

The manufacturing processes used for plastics, such as injection molding, produce mounting pads with precise flatness and dimensional accuracy. This flatness directly translates into a stable foundation for the HVAC unit, allowing the system to function at its best and extending its operational lifespan.

III. Durable: the third and final element of a solid HVAC mounting pad

Durability stands as the third crucial element in the holy trinity of an exceptional HVAC mounting pad. HVAC systems are exposed to various environmental conditions, including temperature fluctuations, moisture, and mechanical stress. A durable mounting pad is designed to withstand these challenges, providing a long-lasting foundation for the condenser unit. Beyond the many environmental challenges faced, the pad must also be able to withstand contact with lawn mowers and other items that come in contact with it. Pads made from HDPE perform well in these conditions and translate to cost savings over the system's life cycle, reducing maintenance and replacement needs.

HDPE excels in durability. They resist corrosion, moisture, and UV radiation, ensuring that the HVAC mounting pad maintains its structural integrity even in inclement outdoor environments. With a durable mounting pad, HVAC systems are not only securely anchored but also protected against the elements, ensuring uninterrupted performance and reliability.

The power of plastics: revolutionizing HVAC mounting pads 

Maybe it sounds hyperbolic to say, but we believe an HVAC system is only as good as its mounting pad: a reliable foundation is necessary to ensure the longevity of your home comfort systems. In the pursuit of the holy trinity—lightweight design, flatness, and durability—plastics have emerged as the material of choice. Their versatility and remarkable engineering properties make them an optimal solution for manufacturing HVAC mounting pads that exceed expectations and stand the test of time.

Our commitment to delivering a quality mounting pad shines through in the PolarPad - it perfectly encapsulates the “holy trinity” of mounting pad excellence. To learn more visit our website or reach out with any questions you might have.

About DuraPlas


For more than 50 years, DuraPlas has introduced and perfected plastic solutions for industries spanning the globe. From agriculture to energy, we strive to make your work easier and more cost effective.

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