While building green is a popular subject, I have found that every person is more concerned with their own electric bill. Consider this, we are a society that will park our cars in the shade and yet build our homes in the sun. This presentation will include the six main design features that affect utility costs and by the way, insulation is not number 1.

1. ENERGY STINGY CONSTRUCTION
BY
Eric Hale CAC, CBC, CFM

2. Is this how you feel about your electric bill

3. How to determine the
Efficiency or Stingy-ness
of a structure?

4. Average Florida Home
2000 SF with a 5 ton A/C
=400 Square Feet per ton

5. LYNX Office tower
83,000 SF with 320 Ton
= 259 Square Feet per ton

6. My Home
2400 SF requires a 1.2 ton A/C
=2,000 Square Feet per ton

7. What are the most important factors for an
Energy Stingy building?

8. 1. Window Placement and size (50++++%)

9. What is R Factor

10. Typical placement of Thermal Mass

11. 2. Preferred placement of Thermal Mass (25-35%)

12. 3. A/C Ducts and Thermal Envelope (20%)

13. Poor Commercial HVAC Control

14. 4. Good Commercial HVAC Control (18-36%)

15. 5. Extra Insulation (10-15%)

16. 6. Reclaim exhaust air (8%)

17. ERV vs HRV Reclaim types

18. 7. Water heater: Heat pump, Hybrid & Tankless (4%)

19. Why don’t builders build energy stingy homes?
$200K TYPICAL HOME
BIGGER WINDOWS, STANDARD WALLS
$220K ENERGY STINGY HOME
SMALLER WINDOWS, THICKER WALLS

20. SUMMARY
• Know your building Stingy-ness by knowing your SF/ton
Factors affecting your electric costs.
• 1. Window placement and size. 50+++%
• 2. Thermal Mass on the correct side of insulation. 25-35%
• 3. A/C ducts inside the Thermal envelope. 20%
• 4. HVAC control (Commercial). 18-36%
• 5. Extra insulation. 15%
• 6. Reclaim exhaust air. 8%
• 7. Water heater: heat pump, hybrid or instant. 4%