1. MEASUREMENT OF WATER HEATER EFFICIENCY

2. MEASURE EFFECTIVENESS APPLICATION – RETIREMENT VILLAGE CURRENT SYSTEM (CONTROL) CONTROLLER (NEW SYSTEM) ACCOUNT FOR USE PATTERNS

3. CONSTRAINTS NO LOSS OF HOT WATER SERVICE TWO WEEKS FOR EXPERIMENT

4. LARGE CONSUMPTION

6. CONCERNS GAS METER MEASURED BOTH HOT WATER AND SPACE HEATING USAGE WAS BURNER CONSUMPTION RATE CONSTANT? HOW TO ACCOUNT FOR GREATER USAGE ON MONDAY AND FRIDAY? HOW TO ACCOUNT FOR STANDBY LOSSES?

7. GAS METER MEASURED BOTH HOT WATER AND SPACE HEATING USAGE MONOTOR TIME THAT GAS SOLENOID IS OPEN.

9. WAS BURNER CONSUMPTION RATE CONSTANT? CALIBRATE BURNER GAS CONSUMPTION MEASURE HOT WATER GAS CONSUMPTION WITH SPACE HEATING OFF REPLICATE

10. WEEKLY USAGE

11. HOW TO ACCOUNT FOR GREATER USAGE ON MONDAY AND FRIDAY? USE BLOCKING INSTALL CONTROLLER ACTIVATE FIRST WEEK DEACTIVATE SECOND WEEK

12. HOW TO ACCOUNT FOR STANDBY LOSSES? USE BLOCKING IN TIME EXAMINE EFFECT OF USAGE

13. RESULTS

14. CONTROLLER OFF

16. BALANCE CHECK

18. CONTROLLER OFF

19. CALCULATION

22. CONTROLLER ON

24. t-TEST

25. EFFECT OF WATER USAGE

26. CONCLUSIONS CONTROLLER REDUCES GAS CONSUMPTION BY 11% DIFFERENCE IS STATISTICALLY SIGNIFICANTLY GAS CONSUMPTION PER GALLON OF HOT WATER REDUCES WITH GREATER CONSUMPTION