City of Guelph Blue Built Home
Water Efficiency Standards and Rebate Program
Appendix 1:
Proposed Blue Built Home Standard Scenarios
and Water Saving Measures
City of Guelph Water Services Department
November 30, 2012
Page 1 of 5
Appendix 1 - City of Guelph
≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Timer‐based hot water recirculation system 25 75 $400 ≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Rough‐in for hot water recirculation system 21 63 $300 Estimated Savings, Lcd Savings/Home/Day (based on 3 people), L Rebate per Home, $ Silver Bronze Scenario 1
$500 87 29 $1,500 147 49 $2,500 158 53 Platinum (with Platinum (with Greywater)
Rainwater)
≤ 4‐L toilets ≤ 4‐L toilets ≤ 4‐L toilets ≤7.6 Lpm ≤7.6 Lpm ≤7.6 Lpm showerheads showerheads showerheads Waterless floor trap Waterless floor trap Waterless floor trap On‐Demand hot On‐Demand hot On‐Demand hot water recirculation water recirculation water recirculation system system system Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ Lpm Lpm 1.9 Lpm Greywater Reuse Rainwater Harvesting System System Gold The following four scenarios are proposed alternative Blue Built Home Standards for review and discussion only.
Blue Built Home
Water Efficiency Standards and Rebate Program
November 30, 2012
Page 2 of 5
Appendix 1 - City of Guelph
≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Efficient Clothes Washer Rough‐in for hot water recirculation system 35 105 $500 ≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Efficient Clothes Washer 33 99 $400 Estimated Savings, Lcd Savings/Home/Day (based on 3 people), L Rebate per Home, $ Silver Bronze Scenario 2
$600 129 43 $1,600 189 63 $2,600 200 67 Platinum (with Platinum (with Greywater)
Rainwater)
≤ 4‐L toilets ≤ 4‐L toilets ≤ 4‐L toilets ≤7.6 Lpm ≤7.6 Lpm ≤7.6 Lpm showerheads showerheads showerheads Waterless floor trap Waterless floor trap Waterless floor trap Efficient Clothes Efficient Clothes Efficient Clothes Washer Washer Washer On‐Demand hot On‐Demand hot On‐Demand hot water recirculation water recirculation water recirculation system system system Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ Lpm Lpm 1.9 Lpm Greywater Reuse Rainwater Harvesting System System Gold Blue Built Home
Water Efficiency Standards and Rebate Program
November 30, 2012
Page 3 of 5
Appendix 1 - City of Guelph
≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Water Efficient Softener Efficient Clothes Washer Rough‐in for hot water recirculation system 40 120 $600 ≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Water Efficient Softener Efficient Clothes Washer 38 114 $500 Estimated Savings, Lcd Savings/Home/Day (based on 3 people), L Rebate per Home, $ Silver Bronze Scenario 3
$700 144 48 $1,700 204 68 $2,700 215 72 Platinum (with Platinum (with Greywater)
Rainwater)
≤ 4‐L toilets ≤ 4‐L toilets ≤ 4‐L toilets ≤7.6 Lpm ≤7.6 Lpm ≤7.6 Lpm showerheads showerheads showerheads Waterless floor trap Waterless floor trap Waterless floor trap Water Efficient Water Efficient Water Efficient Softener Softener Softener Efficient Clothes Efficient Clothes Efficient Clothes Washer Washer Washer On‐Demand hot On‐Demand hot On‐Demand hot water recirculation water recirculation water recirculation system system system Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ Lpm Lpm 1.9 Lpm Greywater Reuse Rainwater Harvesting System System Gold Blue Built Home
Water Efficiency Standards and Rebate Program
November 30, 2012
Page 4 of 5
Silver ≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Water Efficient Softener Rough‐in for hot water recirculation system 26 78 $500 Bronze ≤ 4‐L toilets ≤7.6 Lpm showerheads Waterless floor trap Water Efficient Softener 24 72 $400 Estimated Savings, Lcd Savings/Home/Day (based on 3 people), L Rebate per Home, $ Scenario 4
$600 102 34 $1,600 162 54 $2,600 173 58 Platinum (with Platinum (with Greywater)
Rainwater)
≤ 4‐L toilets ≤ 4‐L toilets ≤ 4‐L toilets ≤7.6 Lpm ≤7.6 Lpm ≤7.6 Lpm showerheads showerheads showerheads Waterless floor trap Waterless floor trap Waterless floor trap Water Efficient Water Efficient Water Efficient Softener Softener Softener On‐Demand hot On‐Demand hot On‐Demand hot water recirculation water recirculation water recirculation system system system Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ 1.9 Lavatory Faucets ≤ Lpm Lpm 1.9 Lpm Greywater Reuse Rainwater Harvesting System System Gold Blue Built Home
Water Efficiency Standards and Rebate Program
November 30, 2012
Appendix 1 - City of Guelph
Blue Built Home
Water
Efficiency Standards and Rebate Program
November 30, 2012
Table 1 Water saving measures recommended to be included within all
levels of BBH certification
Savings, L/day
Measure/Item
Per 3
Per Capita
People/Home
Toilets that flush with 4.0-L or less (1.06 U.S.
gallons)
10
30
(code is currently 6.0-L)
Showerheads of 5.7 Lpm or less
8
24
(code is currently 9.5 Lpm)1
Waterless floor trap for non-basement laundry
1
3
In addition to the water saving measures in Table 1, the following table outlines
further measures for potential inclusion within specific BBH certification categories.
Table 2 Potential water saving measures to be included in the revised BBH
standards
Savings, L/day
Measure/Item
Per 3
Per Capita
People/Home
Efficient Clothes Washer with Water Factor2 of less
14
42
than 5.0 gal/cycle per cubic foot
Water and Salt Efficient Water Softener
5
15
Rough-in only for Hot Water Recirculation System3
Timer-based Hot Water Recirculation System
6
18
On-Demand Hot Water Recirculation System4
10
30
Rough-in only for Greywater Reuse/
Rainwater Harvesting Systems
Greywater Reuse System
20
60
Rainwater Harvesting System
24
72
1
Note that the Ontario’s revised Building Code will require a 7.6 Lpm showerhead
beginning in 2014. At this time the installation of a showerhead would not contribute
to the overall instant rebate.
2
Water Factor is the number of litres of water per cycle that the washing machine
uses per litre of tub capacity.
3
Note that it is anticipated that at least 20% of homes with a roughed-in hot water
recirculation system will install a complete system.
4
Lavatory Faucets (≤ 1.9 Lpm) are combined with the On-Demand Hot Water
Recirculation System to provide estimated water savings. Page 5 of 5
Appendix 1 - City of Guelph