Test Dates:		December 20, 1999-January 31, 2000
Pool Type:		2 Outdoor Pools: • the larger pool has approximately 2600 sq. ft. • the smaller pool has approximately 1250 sq. ft.
Other Factors:		Gas heat Minimal wind exposure Insignificant precipitation during the test period

The San Diego Marriott has a gas meter that measures only the energy used to heat its two swimming pools. The engineers take a daily meter reading at 2am each morning.

We kept track of the gas used for one week, without adding HEAT$AVR. Then the recommended dose of HEAT$AVR was manually added to both pools for one week.

We compared the energy consumption without, and with the use of HEAT$AVR.

CONTROL PERIOD (no HEAT$AVR used)
12/20/99 to 12/27/99
 

Natural Gas used during period		1394 Therms
Average temperature during period*		62° F.

TEST PERIOD (7 oz. for large pool/3 oz. for small pool added daily)
1/12/00 to 1/19/99
 

Natural Gas used during period		1025 Therms
Average temperature during period*		63° F.

*All weather statistics were taken from the National Weather Service website at http://www.wrh.noaa.gov/sandiego

TEST RESULTS
 

Reduction in gas use from HEATSAVR		369 Therms
Value of Gas Saved**	Per Week Per Month	$185.98 $743.92
Cost of HEAT$AVR Used	Per Week Per Month	$25.20 $100.80
Net Savings from HEAT$AVR	Per Week Per Month	$160.78 $643.12

** cost of gas = $0.504/Therm

CONCLUSION

The result of this test was a 26% reduction in energy use, which equals potential net savings of between $ 4000-5000+ per year. This property heats its pool for 12 months of the year. In other words, for every dollar spent on HEAT$AVR, the San Diego Marriott Hotel & Marina will save approximately $ 7.38 during the winter months (Payback ratio of 7:1).

The result of this test is consistent with tests that have been conducted for hotel swimming pools. Hotel operators typically see savings ranging from 20% to 30%, when using HEAT$AVR, Liquid Solar Blanket as an energy conservation tool for their pools.