Savings by the Numbers: HVAC Energy Savings Over One Year
High Efficiency HVAC units are a substantial upfront cost. However, the cost savings over even a single year ends up saving you more money than you thought.
How Efficiently does the HVAC Unit Heat and Cool the Home?
The Ultimate Home features a two-stage, three-ton geothermal heating and air conditioning system. In the first stage, the unit runs at 67% of its overall capacity, and increases to maximum speed in the second stage.
The two-stage unit ran at full capacity in the second stage only 2% of time it was engaged. Essentially, 98% of the year the 2,700 square foot Ultimate Home is effectively heated and cooled by the unit!
How Often is the System Running?
In January the system was only engaged 7% of the time. At its peak in June, it ran only 41% of the time. Altogether, the geo-unit ran an astonishingly low 30% of the year. How is this possible?
This is possible by paralleling the geothermal HVAC system with other energy saving materials.
- The Ultra-Aire Dehumidification System removes excess moisture from the air, which lowers the output necessary from the geo-unit.
- Rigid Dow-Board and Spray Foam Insulation both block uncomfortable outside air from entering the house.
- The Metal Roof reflects solar radiation, lessening the burden of the HVAC system to cool the house. Metal roofs last much longer than their shingle-based counterparts.
- Having Supply and Return Vents in Every Room means that heated or cooled air from the geo-unit is distributed quickly and evenly throughout the home. Therefore, the homeowners do not have to raise or lower the thermostat to heat or cool a single room.
How Much Money are they Saving?
The Ultimate Home-owners moved from a 4,700 square foot house that required three separate HVAC systems. Their energy bills averaged between $300 and $350. Their Ultimate Home energy bills have averaged $100 or less per month.
The updated geothermal HVAC unit will last the Ultimate Homeowners up to 25 to 30 years. This is a substantial lifespan compared to traditional heating and air conditioning systems which last about 12 to 15 years. Considering the lifespan and monthly savings of geothermal, as well as available tax incentives on the system, recovering the initial costs of geothermal HVAC can take as little as five years.