All residential storage models meet or exceed efficiency requirements of the Department of Energy. ASHRAE Standard 90.1 b (current standard) and the National Appliance Energy Conservation Act of 1987 recent amendment effective January 20, 2004 which supercedes all state and local efficiency requirements. . 1" Non-CFC foam insulation—surrounds the tank surface, saving energy by retarding loss of heat. . Closed combustion—all air for combustion is taken directly from the outside. The co-axial vent pipe (pipe inside a pipe) draws combustion air in through the outer pipe (6"), and exhausts the products of combustion through the inner pipe (4"). . Co-axial—rotational venting at top of unit. . Heat Traps—factory installed, minimizes heat loss through piping. . Water Connections—3/4" NPT factory installed true dielectric fittings. Extends water heater life and eases installation. . No electrical power necessary. . Piezo igniter—for ease of lighting the pilot. . Vitraglas® lined tank—Bradford White water heater tanks are protected from the corrosive effects of hot water by an exclusive ceramic porcelain-like coating. The Bradford White high silica Vitraglas® lining provides a tough interior surface for our water heater tanks. . Factory installed Hydrojet® Total Performance System—cold inlet sediment reducing device. Helps prevent sediment build up in tank. Increases first hour delivery of hot water while minimizing temperature build up at top of tank. . Protective magnesium anode rod—provides added protection against corrosion for long trouble-free service. . Brass drain valve. . T&P relief valve—included. . Side Tappings—for space heating purposes. . Fully automatic controls—automatic temperature selection at your fingertips. Built-in energy cut-off switch prevents abnormally high water temperature for extra safety. Built-in gas pressure regulation. Fast- acting thermostat starts heat recovery cycle sooner. . Optional vent kits—allow for up to 8 foot max vertical and 8 foot max horizontal (2.4 meters). All DH-1 models must be terminated horizontally . Six or ten year limited warranty on steel tank—heavy gauge steel automatically formed, rolled and welded to assure a continuous seam for glass lining. . Six year limited warranty on parts. . Design certified by CSA International. (formerly AGA and CGA) MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING U.S. PATENTS: 7,063,133 B2; 5,954,492; 5,954,492; 5,761,379; 5,943,984; 5,081,696; 5,988,117; 6,142,216; 5,199,385; 5,574,822; 5,372,185; 5,485,879; 5,277,171; (B1)5,341,770; 5,660,165; 5,596,952; 5,682,666; 4,904,428; 5,023,031; 5,000,893; 4,669,448; 4,829,983; 4,808,356; 5,115,767; 5,092,519; 5,052,346; 4,416,222; 4,628,184; 4,861,968; 4,672,919; Re. 34,534. OTHER U.S. AND FOREIGN PATENT APPLICATIONS PENDING. CURRENT CANADIAN PATENTS: 1,272,914; 1,280,043; 1,289,832; 2,045,862; 2,112,515; 2,108,186; 2,107,012; 2,092,105.5. X The standard vent kit (239-42979-00) is ordered and shipped separately. The components are as follows: 4" vent tube*, 6" Air Intake Tube, Vent Terminal, Inner Wall 6.5 inch (16.5 cm) Term Mounting Flange, Outer Wall Term. Mounting Flange, Vent Terminal Hardware, 11 1/2 Min. Diameter Hole in Wall RTV Silicone Sealant, 4" Vent Elbow and a 6" Air Intake Elbow. The vent tube and air intake tube telescopes from 13 3/4" to 23 11/16". Horizontal "X" A E&F 1/2” GAS CONNECTION G D Horizontal Installation Only Optional Kits: Part Number Description * (2) = Order two of the kits referenced. * (3) = Order three of the kits referenced. 243-42516-00 Kit F – Telescopes from 43.4" to 511.16" The bold text above show what kit(s) are needed in addition to the standard vent and air 243-42517-00 Kit G – Telescopes from 61.2" to 93.16" intake tubes. If the standard vent and air intake tubes are not used in the venting system 243-42514-00 Kit H – Telescopes from 133.4" to 2311.16" (those that do not have bold text) they can be discarded or saved. 243-42512-00 Kit I – Telescopes from 4913.16" to 9513.16" For vent distances not found in the selection chart above, please contact the Product Management Department for sizing recommendations. Vertical " Y" SIDE WATER OUTLET DRAIN VALVE SIDE WATER INLET B Y 11 9/16 7 3/16” Boot Extension H 16 1/4 17 3/16 18 20 11/16 25 1/4 35 3/16 37 3/4 57 7/8 61 5/16 107 5/16 11 9/16 order order no add'l order order kit F kit G kit req'd kit H kit I 16 5/16 17 1/4 *order order order order order kit F (2) kit G & F kit F kit H & F kit F & I 18 1/16 20 3/4 order order order order order kit F & G kit G (2) kit G kit G & H kit G & I 25 5/16 35 1/4 order order order order order kit F kit G kit H kit H (2) kit I 38 1/16 57 15/16 order order order order order kit H & F kit H & G kit H (2) kit H (3) kit H & I 61 3/8 107 3/8 order order order order order kit I & F kit I & G kit I kit I & H kit I (2) Energy Saver Direct Vent Models CEC listed. 78% Recovery Efficiency for all models. NATURAL GAS A BCDE FG Model Number Imp. Gal. Cap. U.S. Gal. Cap. Liter...