  Richard Sparks, Home Owner, Richard Sparks
December 10, 2009
To Whom It May Concern:
I recently embarked on a comprehensive effort to reduce energy usage in my home. Components of this effort included a geothermal heat pump, additional attic insulation, TED and Watt Killer Analysis, draft sealing using a blower door, changing all lighting to compact fluorescents, etc. It has been 6 months since these changes, and my estimated annual savings on my energy bill are approximately 60%.
The firm Sustainable Future was the contractor for a portion of this work, including the additional attic insulation, TED installation, and draft sealing using a blower door. I believe these changes made a significant contribution to my overall energy savings.
Sustainable Future did excellent work, and it was a pleasure to have such diligent, reliable, and clearly honest well meaning workers in my home. I highly recommend this firm to anyone who is interested in energy saving projects at their home.
Sincerely,
Rick Sparks, PhD, MBA
Knoxville, TN
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