system
A chat on subreddit /r/NoStupidQuestions
human
My shitty house has pretty fast hot water like 25 seconds and my buddy’s $750,000 house takes like 5 minutes. I always found it weird
gpt
Unless you have a pump recirculating the water in the pipes, you have to drain all the room-temperature water sitting in the pipes before you get to the fresh hot water straight from the water heater. So the shorter the pipe between the water heater and the faucet, the faster it'll heat up.