Bmusgrove
New Member
I just replaced a 21 year old Whirlpool electric heater. Prior to doing this, I researched whether to use a dielectric union (as recommended by the new heaters manufacturer AO Smith), brass, or keep the plastic lined heat trap nipples that comes with the new AO Smith water heater. Opinions on this forum were varied.
For anyone else researching this in the future, I have attached pictures of the plastic lined galvanized nipples on my Whirlpool heater. This unit was in operation for 20 years. The interior of the nipples was clean. The exterior was so corroded you could deform the nipples with small pliers.
I’ll stick with plastic lined.
Hopefully this helps you in your research
your research.
For anyone else researching this in the future, I have attached pictures of the plastic lined galvanized nipples on my Whirlpool heater. This unit was in operation for 20 years. The interior of the nipples was clean. The exterior was so corroded you could deform the nipples with small pliers.
I’ll stick with plastic lined.
Hopefully this helps you in your research
Last edited: