Independent Case Study 1 – Performed by Natural Gas Technologies Centre
Addenda Independent Case Study 1 – Performed by Natural Gas Technologies Centre
Independent Case Study 2 – Performed by Natural Gas Technologies Centre
Independent Case Study – Oz Corporation
Our Customer’s Results:
NJ Management Services
Results
– decreased heating costs over previous year by approximately 12.6%
Payback Period 1.8 years
Details
– 14 storey apartment building, 94 suites, heated by atmospheric hot water.
Numert Investments
Results
– 16,886m3 reduction in gas consumption
– decreased heating costs over previous year by approximately 11.3%
Payback Period 1.2 years
Details
– 10 storey apartment building
– 109 suites
– heated by two atmospheric hot water boilers.
Biddington Properties Inc.
Results
– reduced heating costs by 14.5%
Payback Period 1 year
Details
– 14 storey apartment building
– 184 suites
– heated by atmospheric hot water boilers.
Metro Toronto Housing Corp.
Results
– Primary and secondary heating loops reduced by 15° F
– comfort levels improved -28% reduction in heating costs (1998/99 vs. 2000/01)
– over 121,000m3 saved ($14,560 at 1999 prices/$38,828 in 2001)
Payback Period 1.3 years at $0.12/m3 for natural gas
Details
– 15 storey apartment building
– 379 suites
– built in 1971
– primary/secondary heating loop with DHW fed from primary heating loop
Greenwin Property MGMT
Results
– Energy savings/comparison with Novitherm Heat Reflectors 26.0%;
without Heat Reflectors – 1.4%
Payback Period Less than 1 year
Details
– 2 multi-level residential buildings
– free standing case iron radiators
– original windows
– heat reflectors installed in one building only
Belmont Properties
Results
– between 7% to 19.8% heat savings (different results per apartment)
Payback Period Under 2 years
Details
– five, 2 storey, 12 unit, brick apartment buildings
– built in 1958
– original hot water boilers with free-standing cast iron radiators
Heritage Building
Results
– 1,282 m3 reduction in gas consumption
– decreased heating costs over previous year by approximately $16.74
– boiler temperature reduced by 20°F
Payback Period 2.38 years
Details
– 12 storey, brick building
– heated by atmospheric hot water boiler
– free standing cast iron radiators
