▲ 1546 ▼ Yes please! (media.piefed.world) submitted 10 months ago by The_Picard_Maneuver@piefed.world to c/whitepeopletwitter@sh.itjust.works 311 comments fedilink hide all child comments
[–] AtariDump@lemmy.world 1 point 10 months ago As recently as the 1990s, even the most efficient gas water heaters only had a UEF of around 0.70 (i.e., 70%), meaning that at least 30% of the fuel used (or 30 cents of every dollar spent) was wasted and not producing usable hot water. permalink fedilink source parent