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I installed a Bradford White Natural gas water heater last week. Customer wanted it added to his system as his large family was using up all the hot water in existing heater. Usually connect 2 heaters parallel to each other. Someone had exchanged original nipples on top with brass for Watts recirculation pump system . I went to replace nipples on new heater to match existing one . Pulled hot side and
Anode rod is attached to outlet nipple. Never seen that before. Change of plans . Put nipple with anode back in . Connected heaters in series and all is good . You all know the difference between series and parallel?
Are the anodes the same with Bradford White electric models ?
I have had good luck with Bradford White heaters . Made in the USA . Entire bottom of combustion chamber is screen for air intake, unlike the rest that use a 4 X 10 screen that get blocked easily.
I was just going to mention that I remember the Bradford white anode rods being installed on the hot water outlet nipple(nat gas) haven’t installed any of them in a few years.
if I ever install 2 heaters, I always install them in tandem(parallel). I always figured that installing them in series would definitely overtax the first heater, causing it to fail quicker than the 2nd one.
I wonder what other people think about this topic?
 

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I was just going to mention that I remember the Bradford white anode rods being installed on the hot water outlet nipple(nat gas) haven’t installed any of them in a few years.
if I ever install 2 heaters, I always install them in tandem(parallel). I always figured that installing them in series would definitely overtax the first heater, causing it to fail quicker than the 2nd one.
I wonder what other people think about this topic?

Since redwood isn't here, I must tell you that you should be installing them using the "reverse return" method.


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philosopher and statesmen
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Discussion Starter #24

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I installed a Bradford White Natural gas water heater last week. Customer wanted it added to his system as his large family was using up all the hot water in existing heater. Usually connect 2 heaters parallel to each other. Someone had exchanged original nipples on top with brass for Watts recirculation pump system . I went to replace nipples on new heater to match existing one . Pulled hot side and
Anode rod is attached to outlet nipple. Never seen that before. Change of plans . Put nipple with anode back in . Connected heaters in series and all is good . You all know the difference between series and parallel?
Are the anodes the same with Bradford White electric models ?
I have had good luck with Bradford White heaters . Made in the USA . Entire bottom of combustion chamber is screen for air intake, unlike the rest that use a 4 X 10 screen that get blocked easily.
yes.....same as batteries...
 

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Il Lic. Plumber
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Since redwood isn't here, I must tell you that you should be installing them using the "reverse return" method.

View attachment 128078
"1st one in , last one out" is what I have always called this method . I have installed 3 in a row with this method. Like your term better than mine. Have always tried to connect 2 together parallel. As long as both units are the exact same and equal distance to the tee's that split cold and then hot water , usually both burners kick on within a few seconds of each other when used .
 

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"1st one in , last one out" is what I have always called this method . I have installed 3 in a row with this method. Like your term better than mine. Have always tried to connect 2 together parallel. As long as both units are the exact same and equal distance to the tee's that split cold and then hot water , usually both burners kick on within a few seconds of each other when used .
If I'm doing two or three heaters together I will do it like this if for myself,if done for joe blo customer I run cold in one and then that hot goes into heater #2 cold outlet,I want that heater to wear out quick so I can make that money again
 
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