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Water and Cost Savings for SSI High Efficiency Fixtures
Please fill in the shaded boxes with your local information. The results of your water and energy savings by using SSI products are automatically calculated in the white boxes below.
Canadian House Worksheet (Metric)
Site Name
Your House
Date completed
September 05, 2008
Building information
Total residents
Utility information
Water and sewer cost, per cubic metre
/cu.m
Hot water energy cost
/GJ
If using electricity for hot water, enter cost per kWh x 210 (e.g for $0.10/kWh, enter $21/GJ)
If using propane for hot water, enter cost per litre at 41 (e.g. for $0.50/L, enter $20.50)
Hot water cost per cubmic at 60C
$3.96
/cu.m
Fixture information
Toilets
Bathroom
Faucets
Shower
Heads
Kitchen
Faucets
Aerator
Number of fixtures:
Uses/person/day:
5
2
8
1
Existing fixture type (nominal):
13L
2 gpm
2.5 gpm
2.2 gpm
Actual fixture water use (L/use):
7.6
9.5
8.3
SSI High Efficiency Fixtures:
3/6L
0.9 gpm
1.5 gpm
1.2 gpm
SSI fixture water use:
3.8
3.4
5.7
5.7
Dual flush toilets average 3.8L/flush (three out of four flushes are 3L)
Bathroom faucet water use is based on two minutes per person, per day and one third being hot water
Shower water use is based on one eight minute shower and ¾ being hot water
Kitchen faucet water use is one minute, per person, per day and one third being hot water
Water usage numbers are based on industry standards and US EPA statistics for water use
Water and Cost Calculations
Standard Fixtures
Toilets
Bathroom
Faucets
Shower
Heads
Kitchen
Faucet
Aerator
Total
Household daily water use
L/day
Household annual water use
cu.m/yr
SSI High Efficiency Fixtures
Household daily water use
L/day
Household annual water use
cu.m/yr
Reductions
daily water use reduction
L/day
daily hot water use reduction
L/day
annual water use reduction
cu.m/day
annual water cost reduction
$
$
$
$
$
$/yr
annual hot water cost reduction
$
$
$
$
$
$/yr
Total annual cost savings
$
$
$
$
$
$/yr
