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eF SERIES® ULTRA HIGH EFFIENCY WATER HEATERS
Now the eF Series® is even better with the addition of an Honeywell® Integrated Control System! This intelligent, proven design combines temperature control, diagnostic codes, and system ignition functions into a single control board with a digital LCD display. The control system features two different modes (operation and service) that prompt the installer during start-up and provide 10 different diagnostic codes to assist in trouble shooting. These models offer remarkable thermal efficiency ratings as high as 99.1% – an unprecedented rating that makes this line of water heaters the most efficient in its class. In addition to this remarkable performance, the eF Series® is secondto-none in installation flexibility. All models are capable of Power Venting (using inside air for combustion) or Power Direct Venting (using outside air for combustion) and can vent vertically or horizontally. They are also approved for unbalanced, direct-vent closed combustion applications. Unbalanced venting means the air intake pipe doesn’t have to be vented the same length, or on the same external building surface as the exhaust vent (a feature not available on competitors’ models). The eF Series® is also noticeably quieter, and homeowners, building owners and managers and occupants will appreciate the difference.
The eF Series® gives home and building owners, engineers and plumbing and heating professionals:
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Reliable, Trouble-Free Performance
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Thermal Efficiency Ratings Up To 99.1%
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High First Hour Delivery Ratings (up to 521 gallons)
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Quiet Operation
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Power Vent or Power Direct Vent Capabilities
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An Optional 3" Concentric Vent Kit Termination
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An Optional “Energy Savings” Programmable Setback Control
eF Series Models ®
GPH Recovery at Degree Rise
NATURAL GAS AND PROPANE GAS
Model Number
Gallon Capacity
Residential Ultra High Efficiency Energy Saver Model EFR-1-60T1206EN 60 Commercial Ultra High Efficiency Energy Saver Models 60 EF-60T-125E-3N(A) 60 EF-60T-150E-3N(A) 60 EF-60T-199E-3N(A) 100 EF-100T-150E-3N(A) 100 EF-100T-199E-3N(A) 100 EF-100T-250E-3N(A) 100 EF-100T-300E-3N(A) 100 EF-100T-399E-3N(A)†
Thermal Efficiency %
NG/LP Input BTU/Hr.
1st Hour Delivery Rating at 100˚F Rise
40˚F
100˚F
140˚F
95.0
120,000
180
345
138
99
96.0 93.0 92.0 99.1 98.5 97.0 92.0 93.0
125,000 150,000 199,999 150,000 199,999 250,000 300,000 399,999
187 211 265 250 309 364 405 521
364 423 558 450 597 735 836 1127
145 169 223 180 239 294 335 451
104 121 159 128 171 210 239 322
All models comply with SCAQMD low NOx requirements. † EF-100T-399 will incorporate the Honeywell® Integrated Control System beginning, 1st quarter 2011. (A) = ASME Code Available. For Propane Gas models change suffix "N" to "X" and remove "E" from the model number. Example: EF-100T-150-3X. Please consult specification sheet and website for complete product information.