Upgrade Your Home with a High-Velocity HVAC System

If you live in a home built before the 1960s or 70s, you may have faced the challenge of adding a modern heating and cooling system. Many older homes were originally designed with boiler systems and lack the necessary ductwork for traditional forced air HVAC systems. This can make adding central air conditioning feel like an impossible task—especially if your home has historical status and you want to preserve its original charm.

At Nimmer Heating & Air Conditioning, we specialize in high-velocity small duct HVAC systems—a cutting-edge solution that allows homeowners to enjoy year-round comfort without the need for bulky ductwork or major renovations. And no, we’re not talking about mini-split or ductless systems. We’re talking about the innovative Unico High-Velocity Small Duct System.

What is a Unico High-Velocity Small Duct System?

A small duct high-velocity HVAC system is designed specifically for homes that lack space for conventional ductwork. The Unico System provides an efficient way to integrate modern heating and cooling while maintaining your home’s unique architecture. Unlike traditional systems, Unico’s compact, flexible ducts can be seamlessly threaded through walls, ceilings, and floors—ensuring minimal disruption to your home’s aesthetic.

At Nimmer Heating & Air Conditioning, we’ve helped countless homeowners upgrade their HVAC systems with Unico’s advanced technology, providing comfort without compromise.

Why Choose the Unico System Over Traditional HVAC?

1. Space-Saving Mini Duct Design

One of the most significant advantages of the Unico system is its small ductwork. Traditional HVAC ducts are large and difficult to retrofit into older homes. In contrast, Unico ducts are only 2 to 2.5 inches in diameter, about a quarter of the size of conventional ductwork. This allows for installation in tight spaces, eliminating the need for unsightly soffits or dropped ceilings.

2. Whisper-Quiet Operation

Have you ever noticed the loud rush of air from a traditional HVAC system? Standard ductwork amplifies noise, making the system louder than necessary. The Unico system, however, is engineered for quiet operation. Its small, flexible ducts are made from a nylon core wrapped in insulation, absorbing sound naturally. For even more noise reduction, additional sound attenuators can be installed to further minimize any vibration or airflow noise.

3. Increased Energy Efficiency

Unico’s insulated mini-duct system ensures minimal thermal loss as air moves through your home. Unlike standard ductwork, which can develop air leaks at the seams, Unico ducts are nearly 100% airtight. In fact, third-party testing has shown that the Unico system loses less than 5% of air volume output, compared to the 25% loss commonly seen in traditional systems. This means lower energy costs and better overall efficiency.

4. Seamless, Aesthetic Integration

Most homeowners don’t want to see large, bulky air registers disrupting their home’s design. Unico air supply outlets are sleek and discreet, blending effortlessly into walls, ceilings, and floors. Available in various colors and finishes, these outlets can even be painted or stained to match your home’s decor. Whether you have a historic home or a custom-built modern space, Unico provides an HVAC solution that is as visually appealing as it is effective.

Is a Unico System Right for Your Home?

If you love the charm of your older home but need modern climate control without major renovations, the Unico high-velocity system is an excellent choice. At Nimmer Heating & Air Conditioning, we specialize in designing and installing these advanced systems to maximize comfort while preserving your home’s integrity.

✔ Perfect for homes without existing ductwork

✔ Minimally invasive installation

✔ High-efficiency heating and cooling

✔ Aesthetic, discreet air supply outlets

✔ Reduced energy waste & noise