2313 COLUMBIA AVE B 2025-09-10 - Laserfiche WebLink

Table 406.2 Energy Credits 2015 Code OPTION DESCRIPTION CREDIT(S) Estimated Cost 5a EFFICIENT WATER HEATING 5a: 0.5 All showerliead and kitchen sink faucets installed in the house shall be rated at 1.75 GPM or less.Al}other lavatory faucets shall be rated at 1.0 GPM or less.' To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the maximum flow rates for all showerheads,kitchen sink faucets,and other lavatory faucets. 5b EFFICIENT WATER HEATING 5b: 1.0 Water heating system shall include one of the following: Gas,propane or oil water heater with a minimum EF of0.74 S/ or Water heater heated by ground source heat pump meeting the requirements of Option 3c. or For R-2 occupancy,a central heat pump water heater with an EF greater than 2.0 that would supply DHW to all the units through a central water loop insulated with R-8 minimum pipe insulation. To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the water heater equipment type and the minimum equipment efficiency. 5c EFFICIENT WATER HEATING 5c: 1.5 Water heating system shall include one of the following: Gas,propane or oil water heater with a minimum EF of 0.91 or Solar water heating supplementing a minimum standard water heater.Solar water heating will provide a rated minimum savings of 85 therms or 2000 kWh based on the Solar Rating and Certification Corporation(SRCC)Annual Performance of OG-300 Certified Solar Water Heating Systems or Electric heat pump water heater with a minimum EF of 2.0 and meeting the standards of NEEA's Northern Climate Specifications for Heat Pump Water Heaters To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify tile water heater equipment type and the minimum equipment efficiency and,for solar water heating systems,the calculation of the minimum energy savings. 5d EFFICIENT WATER HEATING 5d: 0.5 A drain water heat recovery unit(s)snap be installed,which captures waste water heat from all the showers,and has a minimum efficiency of 40%if installed for equal flow or a minimum efficiency of 52%if installed for unequal flow.Such units shall be rated in accordance CSA B55.1 and be so labeled. To qualify to claim this credit,the building permit drawings shall include a plumbing diagram that specified the drain water heat recovery units and the plumbing layout needed to install it and labels or other documentation shalt be provided that demonstrates that the unit complies with the standard.