Upgrade Your HVAC System with Unico High Velocity Comfort: A Guide for Homeowners in MA & Southern NH

Is It Time to Replace Your Furnace and Central AC?

If your home’s heating and cooling system is over 15–20 years old, repairs are becoming more frequent, or you're exploring energy-efficient options, you may be researching the best way to replace your furnace and air conditioning.

But not every home—or homeowner—needs or wants traditional HVAC. That’s why at Denommee Plumbing, HVAC & Electric, we offer specialized replacement solutions like Unico high velocity systems, which can deliver powerful, even comfort without large bulky ductwork.

Let’s explore why the Unico System might be the perfect fit for your home—especially if you’re considering replacing a furnace and AC in an older, architecturally unique, or tightly insulated home.

What Is a High Velocity HVAC System?

The Unico System is a high velocity central heating and cooling system that delivers conditioned air through small, flexible supply tubes and compact air handlers. It uses a powerful blower to move air at higher speed through 2" to 2.5" supply ducts that are easily routed through walls, ceilings, and floors.

Unlike traditional systems that use large metal ductwork, Unico ducts are designed to fit into tight spaces with minimal remodeling—making them ideal for retrofits, historic homes, and finished spaces.

Key Advantages of Unico High Velocity HVAC Systems

✅ Ideal for Homes Without Existing Ductwork

Older homes built before central HVAC often lack room for bulky ductwork. With Unico, Denommee can install high-performance heating and cooling without major disruption to your architecture or finishes.

✅ Whisper Quiet Operation

Unico ducts are insulated and the system uses sound-attenuating technology to reduce air noise, making it one of the quietest systems on the market.

✅ Even, Draft-Free Comfort

Because air is delivered at higher velocity through small outlets, Unico systems provide consistent temperatures and reduce humidity better than many conventional systems.

✅ Compatible with Major Condensers

Unico air handlers are compatible with outdoor condensers from trusted brands like Bosch, Mitsubishi, Carrier, Bryant, and more. This allows Denommee to design a customized high-efficiency system suited to your home and budget.

✅ Discreet Aesthetics

With small, circular or slotted outlets available in various finishes, Unico outlets blend seamlessly into ceilings, floors, or walls—perfect for preserving the look of historic or architecturally sensitive homes.

Common Use Cases for Unico System Installation

• Replacing a furnace and central AC in an older home

• Adding central AC to a home with baseboard, steam, or radiant heat

• Preserving interior finishes in historic or architecturally significant properties

• Installing HVAC in attic, basement, or retrofitted spaces

• Improving comfort and zoning in multi-level homes

Pros and Cons of High Velocity HVAC

✅ Pros:

• Minimal impact on home layout

• Superior humidity control

• Quiet operation

• Compatible with heat pumps and traditional condensers

• Even, draft-free air distribution

⚠️ Cons:

• Higher initial equipment cost than some standard systems

• May require adjustments to existing insulation or structure

• More specialized installation (choose an experienced contractor like Denommee)

Unico System Lifespan and Maintenance

With proper installation and maintenance, a Unico system can last 20 years or more. Key maintenance tasks include:

• Annual air handler inspection

• Filter replacement (typically twice per year)

• Periodic duct and outlet inspection for dust or blockage

• Checking refrigerant and blower motor operation

Enrolling in Denommee’s Peace of Mind Service Program ensures your Unico system receives the care it needs—along with full annual checkups of your plumbing and electrical systems, too.

Peace of Mind Program: Maintenance Made Easy

Our comprehensive Peace of Mind Membership offers homeowners:

• Annual HVAC safety and performance inspections

• Priority scheduling and discounted flat-rate repairs

• Plumbing and electrical system assessments

• Documentation of service history and recommendations

If you're investing in a new high-efficiency system like Unico, Peace of Mind Membership helps protect your investment and your home's comfort year-round.

Denommee: Local HVAC Experts Backed by Industry-Leading Credentials

✅ Unico Recommended Contractor

Denommee is proud to be a recommended Unico installer, with experience designing and installing high velocity systems for homes across Massachusetts and southern New Hampshire.

✅ Mitsubishi Elite Diamond Contractor

For ductless and ducted heat pump options, Denommee is an elite-tier Mitsubishi Electric Diamond Contractor—offering factory-authorized installation and extended 12-year parts and compressor warranties.

✅ Bosch Platinum-Tier Home Comfort PRO Contractor

Denommee also installs and services high-efficiency Bosch inverter heat pumps. As a platinum-tier Bosch contractor, we can access top-tier product support and offer extended coverage and financing.

This broad expertise allows us to design the right solution for each home—whether you're installing Unico with a Bosch condenser, pairing it with a Mitsubishi Hyper Heat system, or replacing an existing gas furnace.

When Should You Consider Replacing Your Furnace and AC?

If your heating and cooling equipment is:

• 15–20 years old

• No longer keeping your home consistently comfortable

• Using R-22 refrigerant (now banned)

• Racking up expensive service calls

• Failing to meet current energy efficiency standards

...it may be time to upgrade to a new system that offers better comfort, efficiency, and reliability.

Why Homeowners Choose Denommee

With over four generations of service, Denommee Plumbing, HVAC & Electric has earned a reputation for professionalism, craftsmanship, and transparency. Our customers rely on us for:

• Free, no-pressure consultations

• Custom HVAC system design

• Clean, code-compliant installation

• Seamless coordination between HVAC, plumbing, and electrical scopes

• Competitive pricing with flat-rate quotes

• Full support accessing Mass Save rebates, 0% HEAT Loans, and federal tax credits

Let’s Design Your Ideal Comfort System

Whether you're replacing a furnace and AC or electrifying your home, the Unico high velocity system offers a compelling solution—and Denommee is the trusted expert to help you make the switch.

We proudly serve:

• Acton, Billerica, Lexington, Belmont

• Burlington, Westford, Concord, Groton

• Nashua, Hollis, Merrimack, and more

📱 Text “HVAC Replacement” to 857-226-9140 or call us to schedule your no-cost consultation today. Our HVAC specialists will assess your home, discuss your goals, and provide a flat-rate quote tailored to your needs.