Clearwater Gas
DOE Furnace Rulemaking South Perspective APGA Gas Equipment & Application Conference Atlanta, GA September 14, 2015
Brian Langille, PE - Operations Manager
Clearwater Gas System • Owned by the City of Clearwater since 1923 • Serve 21,000 customers (Pinellas & Pasco County) • 4th largest FL municipal gas distribution system • 19,000 (natural gas) •
2,000 (propane)
• 880 miles of gas main
Distribution Territory
Gas Distribution Mains
DOE Furnace Rule • Require ALL gas furnaces to have a rated efficiency > 90% • Must purchase Condensing • Increased cost •Furnace •Install/Venting
$1,000 premium $250
Avg. Heating Degree Days (HDD) HDDday = 650F – (Hightemp + Lowtemp)/2 HDDseason= Sum of HDDday
Miami
150 HDD
Atlanta 2,800 New York city 5,000 Chicago 6,800
Furnace Efficiency Efficiency = Heat output gas input • Conventional:
55-65%
• Mid-efficiency:
78-84%
• Condensing:
>90%
Heating Requirements Tampa Bay Area
Heat Output requirement – 60,000 BTU/hr – 30 BTU/hour/Ft2 – 2,000 Ft2 home
Gas Input requirement – 75,000 Btu/hr @ 80% efficiency – 65,000 Btu/hr @ 92%
Payback • Added cost:
$1,250
• Annual savings:
$60
•300 therms/yr @ 80% AFUE •260 therms/yr @ 92% •$1.50/therm
Notice of Data Availability (NODA) • Issued on 9/4/15 • Prompted by stakeholder comments • Small & Large furnace sizing •Large: 92% AFUE (>65k Btu/hr) •Small: 80% AFUE (
Brian Langille, PE - Operations Manager
Clearwater Gas System • Owned by the City of Clearwater since 1923 • Serve 21,000 customers (Pinellas & Pasco County) • 4th largest FL municipal gas distribution system • 19,000 (natural gas) •
2,000 (propane)
• 880 miles of gas main
Distribution Territory
Gas Distribution Mains
DOE Furnace Rule • Require ALL gas furnaces to have a rated efficiency > 90% • Must purchase Condensing • Increased cost •Furnace •Install/Venting
$1,000 premium $250
Avg. Heating Degree Days (HDD) HDDday = 650F – (Hightemp + Lowtemp)/2 HDDseason= Sum of HDDday
Miami
150 HDD
Atlanta 2,800 New York city 5,000 Chicago 6,800
Furnace Efficiency Efficiency = Heat output gas input • Conventional:
55-65%
• Mid-efficiency:
78-84%
• Condensing:
>90%
Heating Requirements Tampa Bay Area
Heat Output requirement – 60,000 BTU/hr – 30 BTU/hour/Ft2 – 2,000 Ft2 home
Gas Input requirement – 75,000 Btu/hr @ 80% efficiency – 65,000 Btu/hr @ 92%
Payback • Added cost:
$1,250
• Annual savings:
$60
•300 therms/yr @ 80% AFUE •260 therms/yr @ 92% •$1.50/therm
Notice of Data Availability (NODA) • Issued on 9/4/15 • Prompted by stakeholder comments • Small & Large furnace sizing •Large: 92% AFUE (>65k Btu/hr) •Small: 80% AFUE (
