A water heater is often called a “hot water heater.”
       
“why do people say ‘hot water heater’ when it heats cold water?” was posted on Twitter by Barry Skalski on May 4, 2009. “Wondering why it is called a hot water heater if it really heats cold water?” was posted on Twitter by Daniel Regier on August 7, 2009.
     
“Why is it a ‘Hot Water Heater’ when its whole purpose is to heat cold water?” was posted on Reddit—Showerthoughts on August 8, 2017. “Why do they call it a hot water heater when it actually heats cold water?” was posted on Reddit—Oneliners on March 7, 2021.
   
   
Twitter
Barry Skalski
@barryskalski
@marklwaltz why do people say “hot water heater” when it heats cold water?
8:09 AM · May 4, 2009·Twitter SMS
   
Twitter
Daniel Regier
@dregier
Wondering why it is called a hot water heater if it really heats cold water?
12:17 AM · Aug 7, 2009·Twitter Web Client
   
Twitter
Patty
@Jojoblair
Why do we call it a hot water heater when it heats cold water?
3:19 PM · Sep 5, 2009·Twitter Web Client
   
Twitter
Billy Pilgrim (ant)
@BillyPilgrimiii
#wordnerd Why do they call it a HOT water heater?  It heats COLD water.
10:55 PM · Jun 1, 2011·Twitter Web Client
 
Twitter
Profitz B4 Pleasure
@JayMooreProfitz
why is it called a hot water heater when it clearly heats cold water..?? o_0
6:16 AM · Aug 30, 2011·Twitter SMS
     
Twitter
Cody Ames
@cody_ames
why do they call it a hot water heater when it heats cold water? :l
1:47 PM · Sep 13, 2012·Twitter for Android
 
Twitter
Ben Meyer
@Ben_Meyer_
Why do they call it a hot water heater if it heats cold water? #LifeQuestions
1:28 PM · Jun 26, 2013·Twitter for iPhone
     
Twitter
Brandon S
@frankies5
Why do they call it a hot water heater when it heats cold water? #ThereISaidIt
3:10 PM · Jul 22, 2015·Twitter for Android
 
Twitter
R & R
@rr_heat_air
Why do they call it a hot water heater when it heats cold water? #HeatingHumor
12:30 PM · Jan 25, 2016·Buffer
 
Reddit—Showerthoughts
Posted by u/nousernamesleft001 August 6, 2017
Why is it a “Hot Water Heater” when its whole purpose is to heat cold water?
   
Twitter
leonard kirby
@leonardkirby
Replying to @Liz_Wheeler
Why is it called a hot water heater instead of a cold water heater? It heats cold water, not hot water,
3:18 PM · Jan 7, 2018·Twitter Web Client
   
Twitter
Flex @ motives unknown.
@Flex_PhD
why is it called a hot water heater if it heats cold water
2:29 PM · Aug 7, 2019·Twitter for Android
   
Twitter
Porter Hayes
@PorterHTP_SC
Replying to @RuscinIsRanting
Why do you call it a hot water heater when it heats cold water? That keeps me up at night.
12:33 PM · Jul 2, 2020 from Arkansas, USA·Twitter for iPhone
 
Reddit—Oneliners
Posted by u/Key_Coach_8387 March 7, 2021
Why do they call it a hot water heater when it actually heats cold water?