Average Reviews:
(More customer reviews)I would have given this electric water heater 5 full stars except for one small problem. Apparently, the earlier models have a defective air check valve on the cold water input (outside/above) which leak (water). I have installed two of these: one in 2001 and the other in 2008. The 2008 installation has the new version of the check valve. It is brass, about 2" long, has air holes in the SIDES and not the end. IF YOU HAVE A MODEL THAT HAS THE OPENING/SCREEN AT THE END OF THE AIR CHECK VALVE, I HIGHLY RECOMMEND YOU CONTACT RHEEM/MARATHON AND THEY WILL SEND YOU A REPLACEMENT OF THE NEW MODEL FOR FREE INCLUDING SHIPPING BEFORE IT BLOWS! Our 2001 air check valve failed which caused water and carpet damage. We purchased this model because it is not supposed to fail... Rheem customer service was great despite the opposite I have read on the web. This heater has a 6 year warranty on parts and the tank is lifetime. Even though the air check valve was 2 years out of warranty, they replaced it via Fed-x overnight at NO COST. I mentioned the ruined carpet to them, and they began a claim. All things considered, I am pleased with this. My plumber does not like anything with poly tanks, so I checked the web for recalls, class action lawsuits, etc., on this and found none. I am the only person I know of to mention the check valve problem above anywhere. They were so quick and friendly to replace the part, that I believe they know about it...
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Rheem MR20120 Marathon point-of-use Electric Water Heater 20 Gal.Rheem MR20120 Marathon point-of-use Electric Water Heater 20 Gal. Features:; Seamless, blow-molded, polybutylene tank - impervious to rust and corrosion; Multiple layers of filament wound fiberglass give the tank unmatched strength; Polyurethane Envirofoam; insulation helps reduce energy consumption; The most energy efficient in its class; Recessed drain valve is out of the way of brooms and scrubbers; Tough molded polyethylene outer shell resists dents and scratches; Bowl shaped bottom allows complete sediment draining; High temperature polysulfone dip tubes; All plastic tank eliminates the need for an anode rod; Thermally fused element to protect tank against "dry-fire"; low watt, density for long life.; Factory installed temperature and pressure relief valve; Factory installed vacuum relief valve; Inlet and outlet connections are 3/4" NPT; Water tight grommets keep out overhead moisture and condensation
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