this post was submitted on 05 Oct 2023
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LPT: When starting a shower or bath, turn your hot water to the max to heat it up faster and save water. Don't just turn it to your desired setting and wait. Wastes water.
You have to clear your hot water line of all the room temperature water first. Depending on how far of a run from your water heater your shower or bath is, I can be a lot of water. Millions of people saving a little bit of water adds up to a ton.
Say you like it on medium, half hot half cold. If you turn it to that setting at the start, you are slowly discharging the room temp water in your hot water lines while dumping cold water out for no reason.
If you go max hot at the start, you efficiently clear the hot water line the fastest. Then, you can add cold water to get your desired temperature.
It's a win-win for everyone
Won't that cost more to heat up quicker?
Bro, what? The hot water is already hot, and no, the cost does not change much. The only difference is the storage cost; the energy input will be the same to heat it up (of course, depending on the heat source, the price can change - solar panels, electric, or fossil). And no, your showering is not really a problem. I don't know where you live, but where I live, personal household use accounts for about 3-5% of the water supply, so saying reducing the shower time or whatever will have 0 impact on water availability.