So, a fully heated, 50-gallon tank will deliver roughly 33 gallons of hot water at any given time. The average shower uses 2 gallons of water per minute, so that same 50-gallon tank is good for a little less than 17 minutes of hot water.Click to see full answer. Similarly, it is asked, how many showers can you get out of a 50 gallon water heater?Using the 70% rule, a 50 gallon tank will deliver approximately 35 gallons of water hot enough for a shower. At ~ 2 gallon per minute +,, you get about 17 minutes or less of shower. Check your watch.! Most new showerheads are rated at 2.5 GPM.Subsequently, question is, how long should a water tank stay hot? The average gas heater takes between 30 and 40 minutes to fully heat up the water in its tank. The average electric heater takes about twice as long as the average gas heater to fully heat up the water in its tank, so you can expect it to take between an hour and an hour and 20 minutes to heat up. In respect to this, how long can you shower in a 40 gallon tank? A 40-gallon water heater can provide up to 2 showers in an hour (if you’re not using any other water appliances).How much hot water does a shower use per minute? Showering to Savings In an average home, showers are typically the third largest water use after toilets and clothes washers. The average American shower uses 17.2 gallons (65.1 liters) and lasts for 8.2 minutes at average flow rate of 2.1 gallons per minute (gpm) (7.9 lpm).
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