1. Water Heaters 101 Residential Gas and Electric

2. Outline Basic water heater features Residential gas overview Residential electric overview Q&A

3. Dip Tube Dielectric Water Connections Standard Water Heater Features Anode Rod Glass Lining Heat Traps T&P Valve Drain Valve

4. T&P Relief Valve Supplied with every water heater Designed for emergency situations and opens when a sufficient level of pressure, or temperature is reached This allows the heated water to spill out, thus relieving the system

5. Water Connections On the top or side of every water heater tank, you'll find water supply connections. The water connections allow cold or tepid water to enter the tank and hot water to exit the tank. Corrosion can often occur at water connections points due to the joining of two dissimilar metals. Bradford White’s Dielectric Waterway Fittings Unique steel-to-plastic construction that prevents corrosion. Creates a dielectric waterway by insulating the inside of the metal casing, thus inhibiting internal corrosion from the two adjoined metals.

6. The dip tube is designed to direct the incoming cold water to the bottom of the heater. Without a dip tube the cold water coming into heater would just mix with some of the hot water at the top of the tank on its way to the outlet. Bradford White’s Hydrojet™ Total Performance System Engineered to reduce costly sediment buildup in the tank. Creates a more thorough mixing of water, reducing thermal stratification Increases first hour delivery Dip Tube

7. Anode Rod Whenever water is heater electrolysis happens When two dissimilar metals are physically connected in water, one will corrode away to protect the other The anode sacrifices itself to protect the interior of a glass lined tank from corrosion Sometimes referred to as “sacrificial rod” Bradford White’s Anode Rods Magnesium anode rods are standard; more reactive when compared to aluminum Aluminum anode rods are used in applications where the water has a sulfur or “rotten egg smell”. Typically well water applications. A420 aluminum alloy anode rods help eliminate the “rotten egg smell” and a better alternative in water softening systems.

8. Drain Valve Allows contractor or homeowner to drain their water heater In some cases, draining the water heater allows the contractor to service the water heater The removal of sediment can also be done through the drain valve Bradford White’s Low Restriction Brass Drain Valve Durable and tamper proof low restriction brass drain valve offers faster tank draining and reduced service time Features a ball valve, nickel-plated brass body, and straight design for ease of hose hookup Standard on gas models http://www.bradfordwhite.com/flushing-water-heater-110 http://www.bradfordwhite.com/rusty-water-117 http://www.bradfordwhite.com/hydrogen-sulfide-odor-and- chlorinating-water-heaters-109

9. Atmospheric Vent Venting using B-Vent, Chimney Vent Uses internal air for combustion Standing Pilot, no electricity required

10. Power Vent Uses internal air for combustion Electronic ignition, electricity is required Venting using PVC, ABS or CPVC pipe Some models have additional side connections and higher BTU/h input for small amounts of hydronic/space heating

11. Dip Tube Dielectric Water Connections Standard Electric Water Heater Features Anode Rod Glass Lining Heat Traps T&P Valve Drain Valve Elements Thermostats Junction Box

12. Utility area where incoming power supply is connected in the water heater Supplies power to the thermostats and heating elements Bradford White’s Junction Box Easier access for electrical connections and completing required electrical inspections Non-metallic box prevents rusting Engineered for safety using impact resistant plastic

13. Thermostat A device which automatically maintains a predetermined temperature in an electric water heater Controls the heating elements Most thermostats are equipped with a safety shut-off Bradford White’s Thermostats Surface mounted thermostats (residential) Range from approximately 90 - 150°F Factory preset to “HOT” setting to provide a water temperature of approximately 120°F Energy Cut Off (red button) device designed to shut power off to the water heater and prevent high temperature.

14. Heating Elements To heat the water, the current passes through electrical-resistance heating elements (Ni-chrome wire) Usually two, one at the top of the tank and one at the bottom Bradford White’s Elements Screw-in type Standard elements – Copper Sheath with Zinc Plated Magnesium Oxide – Ni-chrome heating element potted inside sheathing Incoloy Elements – Incoloy 800 Sheath – Ni-chrome heating element potted inside sheathing – More surface area Resists sediment build-up More durable, lasts longer

15. Electric Upright Double element or single element Top water connections only Top T&P connection only Taller and narrow models as well as shorter and wider models for different applications Some models come with insulation blankets to meet new NAECA efficiency criteria but maintain footprint of previous heaters

16. Water Heaters 101 Residential Gas and Electric Thank You!

17. Questions?