Improper Installation of Energy Efficient Products (09/29/10)
Choose only a HVAC contractor that calculates your heating and cooling needs per Air Conditioning Contractor’s Association of America (ACCA) standards and then installs the system and ductwork accordingly. Further, request the Manual J, S and D calculations in advance for both you and your homebuilder. Review these calculations and the HVAC contractor’s suggested furnace location before signing the contract with your homebuilder. In addition, ensure the drain for the geothermal system is collocated with the system; otherwise, you will have a tripping hazard in your basement.
None of these calculations were done by Olson H&C. A casual sizing estimate resulted in an oversized unit, higher initial costs, reduced efficiency and compromised comfort. A rule of thumb duct work design resulted in poor circulation, wolfing, stuffiness and excess humidity. Moreover, I am paying more in lifecycle costs and the taxpayers paid a higher tax credit than necessary for this ENERGY STAR product.
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