Air Distribution Systems

Our Chief of Engineering, Dr. Michael R. Busby, says “the ‘heart’ of any HVAC system is the space conditioning unit itself.” Much attention, time and effort have been given to the “heart” by the equipment manufacturers, e.g. vastly improved cooling efficiencies (SEER) and heating performance (HSPF and AFUE), environmentally-friendly refrigerants and multi-speed fans and compressors. But, alas, for decades the importance of the design, installation, and performance of the “veins and arteries”, the HVAC duct system, has essentially been ignored. Specifically, architects generally leave no room for the unsightly ductwork, owners recoil in disdain if “furr-ins” are mentioned, plumbers must have their space since it is a given that waste must have its path to leave the structure, etc. Most HVAC contractors will agree with this statement from the building contractor: “The other subs must have their spaces. You boys run your ducts wherever you can.”

It is interesting to note, however, the moment the new owner turns the HVAC unit on and there are hot and cold spots throughout the structure, the finger of blame goes directly to the HVAC contractor. Poorly-designed and installed HVAC duct systems can account for more than a 60% reduction in total system efficiency, occupant comfort and energy usage. While numerous approaches to duct design have been presented in textbooks and manuals, our unique design method has resulted in thousands of comfortable, quiet buildings with low energy bills.

A Typical radial “spider flex” duct installation:

Even experienced HVAC contractors can run into problems by attempting to design their own systems for tight foam insulated structures. This HVAC contractor ignored our engineered layout and relied on his “30 years of experience” to design this job. These poorly designed systems are clearly insufficient for optimal performance, energy efficiency, consistent air flow and humidity control. In this case, poor performance resulted in a total system replacement at considerable expense and inconvenience.

Our Engineered Duct Systems Are Up To 60% More Efficient!

Proper duct design and precisely engineered system sizing ensure optimal performance and humidity control. Call backs are virtually eliminated. Customer satisfaction is “GUARANTEED.”

Our customers also appreciate the fact that their homes and buildings are reviewed and stamped by Dr. Busby, an MIT graduate, a PhD, PE and a former NASA rocket consultant.

Proper HVAC Sizing and an Engineered Mechanical Design (Duct Layout) is Critically Important With Foam-Insulated Homes and Buildings.

Ultra-Energy-Efficient structures are like bio-spheres or terrariums. They are wonderfully thermally efficient, but it is mandatory that the complete system be designed to match the HVAC system with the thermal envelope.

The issues of handling the moisture requirements, assuring air quality and guarding against CO2 buildup must be addressed. This is where our unique HVAC know-how shines.

Our energy usage guarantee backs up our performance predictions.

If you follow our guidelines, you’ll experience dramatic comfort and substantial energy savings. You’ll quickly realize a payback on the nominal investment, and the comfort and savings will continue on as long as you own your home.

Consistent Comfort is Another Benefit of Utilizing The EnergyWise “Total Systems” Approach.

EnergyWise has studied the aspects of insulation, air quality, comfort requirements, equipment efficiency and well, a lot more than you probably want to read about now. This translates into up-to-date information regarding available and cost-effective options for saving energy and saving you money.

Beyond saving money, every EnergyWise energy analysis report considers humidity control, air quality and the general health and comfort of the environment within the structure. After all, living in a healthy environment with consistent comfort is really what you want for you and your family.

The largest factors contributing to discomfort in the home are the humidity levels in the summer and inconsistent hot and cold spots throughout the structure. We solve this by correctly matching and sizing your HVAC system to an airtight home to maintain a guaranteed relative humidity level between 35 and 50% (when the HVAC system is running). We eliminate those undesirable hot and cold spots by properly positioning your home’s duct work while accounting for the number and type of windows and the physical position of your home and its surrounding environment. It is critical to have the HVAC system properly engineered to maintain ideal humidity levels or you run the risk of experiencing a home that is too dry (resulting in having static electricity and drying out caulking), or too wet (resulting in window condensation, mold’s ideal environment).

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