Originally Posted by
Frank Bombardiere
I ran across this 25 gallon water heater today. It was in a nice new home about 2600 sq ft. Had approval stickers for plumbing approval. It had some type of re-circulating system on it. I have not ever seen a 25 gallon water heater set up this way. Any knowledge would be appreciated. Side note - the gas service was off so I could not run water to see how long the hot water would last.
That 25 gallon water heater provides more hot water in the first hour than a single 75 gallon water heater, which is 155 Gallons first hour delivery.. The temperature inside the tank is 180º F with a tempering valve on top reducing the outlet temperature to 120º F.