dougrainer wrote:
Simple fact is, you CANNOT expect adequate Hot Water on 120 ONLY. The recovery rate of 120 is about 50% of LP. You need to run the water heater on LP and 120 for faster recovery and more hot water production. I will bet if you run LP also, your problem will go away. Doug
Sure running propane will help.....the recovery rate using both electric & propane is the quickest
BUT OP stated he has never used propane (electric only).....hot water lasted long time but 3 months later noticed a significant drop in how long hot water lasted.
Hard water prior use.......scaled up electric element is OPs current problem.