Hybrid Geothermal Dual-Fuel System Applied to 4000+ sq ft Litchfield Park, AZ Home
PROBLEM
The home was uncomfortable in summer and the homeowners had experienced excessive repair costs and monthly utility costs for their existing traditional systems.
GOALS
- Control comfort
- Reduce utility costs
- Minimize future repair cost
RESULTS
- Even temps throughout home
- Lower utilities
- Short “changeover” time
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Val & Gayla Johnson in Litchfield Park, AZ
The Johnson’s are the proud owners of their 4,000+ square foot home in Litchfield Park, Arizona, built in 2002. Being a semi-custom track home, the attention that was originally put into the HVAC systems installed to support this structure and the Johnson’s life style, received little consideration.
The result of this was a beautiful home that was less than desirable to occupy during our hot summer months. An additional air conditioner had to be installed in order to achieve the target comfort levels on the west wing of the home and repair bills started to increase in frequency. Over the last 5 years repair bills added up to nearly $5,000.00!! On top of this, the Johnson’s knew the builder grade 13 season energy efficiency ratio (SEER) systems were the main cause of the utility bills they were responsible to pay month in and month out.
Knowing that they were going to stay in this home for a while, the Johnson’s decided to begin investigating new heating and cooling options that would deliver controlled comfort throughout their residence, reduced utility costs, and minimal repair costs over the life of the systems.
This investigative journey went down many paths. In doing research one thing became obvious. Water was a much more efficient form of heat transfer than air. Evaporative style air conditioners were one of the products being studied and that seemed to have a decent history and return on investment (ROI) here in Arizona. Continued research led them to geothermal heating and cooling. Finding unlimited information about geothermal systems across the globe, but little in Arizona, the Johnson’s came in contact with an approved GeOasis professional installer.
After a couple of visits, a detailed design and proposal was put together for their consideration which included utilizing their existing gas furnaces and installing outdoor designed geothermal heat pump to achieve a dual-fuel system that would satisfy all the Johnson’s goals.
Being an APS customer and qualifying for substantial incentives in addition to the Federal Tax credit of 30%, made the purchase of these new Hybrid GeOasis systems practical.
During a period of a week and a half they had their 3 inefficient air conditioners removed and 2 new Hybrid GeOasis heating and cooling systems installed. The installation was conducted in a professional manner and their home was protected and undisturbed, given the size of the renovation.
The GeOasis professionals worked long and hard hours to ensure that the Johnson’s “comfort” was uninterrupted and that the new systems were operational the same day as the old systems were taken “off-line”.
Today the Johnson’s are enjoying some of the most energy efficient systems in the world along with the consistent even comfort in all rooms of their home.
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