Commercial applications come with a 3 year limited warranty on the tank, and a 1 year parts warranty. A O Smith 100112443 Dual CV Limit Switch For 409.732921 Water Heater, 195/260C Limit Switch – CV FVIR SWITCH DUAL 195/260C SURF/MNT Model Number Model… Thanks to all authors for creating a page that has been read 57,242 times. This Smart Technology electric tankless water heater is configured as a “whole home” model for climates where incoming water temperature is 67°F and above. A premium long lasting lid that stays shut when it’s supposed to for years to come, unlike the majority of the others on the market. Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. Prior to purchase and installation please verify this model is the right size for the expected demand and electrical requirements. I was told to check the temperature and pressure valve on a water heater every 6 months. 90-Day Money-back, also 2-year purchase and lifetime support from COSORI, 2.5-gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it, Electric water heater is easy to maintain and has glass-lined tank for long service life. If your water heater stops producing warm water, resetting the heater will usually solve the problem. Hard water is water that contains calcium or magnesium mineral ions often in the form of carbonate. For additional assistance please feel free to contact our support center at 877-474-6473. Thermal efficiency is 98%. water flow to activate the unit: 0.475GMP, Required circuit breaker : 1x 2-Pole 30 AMP. AO Smith Water Heater Review: Models, Types, And Features. Water Heater measures 13.75″ H x 13.75″ L x 13.5″ D and weighs 17.3 lbs. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/fd\/Reset-a-Water-Heater-Step-1.jpg\/v4-460px-Reset-a-Water-Heater-Step-1.jpg","bigUrl":"\/images\/thumb\/f\/fd\/Reset-a-Water-Heater-Step-1.jpg\/aid9315917-v4-728px-Reset-a-Water-Heater-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"