Determine the Water Heater Capacity You Need






















This chart will help you estimate the hot water heater capacity one will need assuming a person uses 45 liters per shower or 65 liters on a regular sized tub.

Detailed breakdown is based on the following assumptions:

a. a person takes 10 mins to shower and consumes approx. 9 liters or 2.378 gallons per minute

b. a standard tub has 130 liters volume capacity

c. will use 50% of the hot and 50% of the cold water for both the tub and shower.

d. water pressure is around 1.5 to 2 bar


To give you an idea if you want to make a detailed computation, listed below are the water consumption based on Hansgrohe fittings at around 1.5 bar.

1. basin & bidet mixers : approx.7.0 liters per min.

2. exposed bath shower: approx. flow rate 22 l/min.

3. bath spout : approx. flow rate 25 l/min.

4. ordinary handshower mode is approx. 9.5 l/min without massage spray

5. rain overhead showers depends on the size, from a regular flow rate of 9.5 l/min to 11 l/min for those with limiters, it can go as high as 40 l/min for free flowing rain showers.

6. bathtubs sizes and volume capacity:

a. size 1.70m x 0.75m is approx. 130 to 200 liters

b. size 1.80m x 0.80m, 430 depth approx. 170 to 240 liters

c. size 1.90m x 0.90m, approx. 280

* please take note that Hansgrohe has a flow limiter that restricts to save water even if the pressure increases. So other brands will consume more capacity if pressure is higher.

Comments

  1. UnknownDecember 24, 2014 at 6:19 AM

    Thanks for the post and great tips..even I also think that hard work is the most important aspect of getting success..
    http://www.myhotwaterheaterleaking.com

    ReplyDelete
  2. Stef GibsonJanuary 16, 2018 at 5:27 AM

    Thanks for all the information....It is useful information and very helpful..

    Commercial Water Heater
    Industrial water heater

    ReplyDelete

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