Bulk buying savings—boilers, residential

ENERGY STAR®—saving time, energy and money

Energy Star logo

ENERGY STAR Canada makes green procurement easier in a number of ways. (See a full description at Making the business case.)

One of the most useful is the ENERGY STAR Simple Savings Calculator. This downloadable tool lets you compare as many as three ENERGY STAR certified models against a conventional model of the same product type.

As the examples for residential boilers in the tables below illustrate, you can calculate:

  • energy savings
  • operating cost savings
  • simple payback on investment
  • greenhouse gas (GHG) emission reductions
  • annual and product lifetime savings

The add-on ENERGY STAR Summary Calculator allows you to figure comparisons for a number of different product types in one spreadsheet.

Note: These ENERGY STAR calculators generate estimates of energy, cost and emissions savings using base energy prices and other factors that are developed from Government of Canada data and energy rates posted by provincial and territorial utilities. National average energy costs are calculated and used as the calculators’ default settings. Users can localize the settings by selecting a province or territory, or inputting their own data. All values are updated regularly.

Learn more about procurement.

Cost-savings example—200 residential gas boilers (30 year life)

Equipment
ENERGY STAR
(with AFUE = 90%)
Non-ENERGY STAR
(with AFUE = 82%)
Annual Lifetime Annual Lifetime
Energy consumption (GJ) 28,932 867,695 33,962 1,018,871
Energy cost
(@ $7.74/GJ)
$224,030 $2,522,087 $262,981 $2,960,582
Maintenance cost $0 $0 $0 $0
Total operating cost $224,030 $2,522,087 $262,981 $2,960,582
Incremental cost   $180,000    
Total life-cycle cost   $2,702,087   $2,960,582
Total energy savings (GJ) 5,030 150,906    
Total energy and maintenance cost savings $38,950 $438,495    
Emissions savings
(kg CO2)
250,195 7,505,862    
Payback period 4.6 years (based on incremental cost of $900 per ENERGY STAR certified unit)
Cost-savings example—200 residential oil fired boilers (30 year life)

Equipment
ENERGY STAR
(with AFUE = 87%)
Non-ENERGY STAR
(with AFUE = 84%)
Annual Lifetime Annual Lifetime
Energy consumption
(GJ)
29,930 897,895 33,154 994,613
Energy cost
(@ $1.09/L)
$842,647 $9,486,338 $933,413 $10,508,167
Maintenance cost $0 $0 $0 $0
Total operating cost $842,647 $9,486,338 $933,413 $10,508,167
Incremental cost   $180,000    
Total life-cycle cost   $9,666,338   $10,508,167
Total energy savings
(GJ)
3,224 96,717    
Total energy and maintenance cost savings $90,766 $1,021,829    
Emissions savings
(kg CO2)
227,958 6,838,737    
Payback period 2.0 years (based on incremental cost of $900 per ENERGY STAR certified unit)

Product specification summary

 

The ENERGY STAR name and symbol are administered and promoted in Canada by Natural Resources Canada and are registered in Canada by the United States Environmental Protection Agency.