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Water Heating Sizing

Use these calculators to compare costs and assess requirements.

Sizing your water heater

How much hot water does my bathtub, spa, or hot tub need?

How much can I save by heating my hot water with propane over electricity?

 

Guidelines for Sizing your Water Heater

Here is a Quick and Easy Guide to help you size your Water Heater. Please enter the number of people in the home, the number of bath tubs (two separate showers equals one tub), and how many dishwashers and clothes washing machines you have. Simply click the calculate button and you will receive a water heater size recommendation. Remember each home is unique, we advise discussing your information with a trained representative before making a final decision.
How many people live in the home?
How many *bathtubs in the home?
*(two showers = one bathtub)
How many automatic dishwashers?
How may clothes washing machines?
 
Recommended size of water heater:
 

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How Much Hot Water does my Bathtub,
Jacuzzi, or Hot Tub Need?

Ever wonder How much hot water it takes to fill your Bathtub, Jacuzzi, or Hot Tub so it's comfortable? Well, here you go.

Just enter the average length, width, and depth below and let Eastern provide you with the answer. This information is also helpful to be sure your water heater is capable of providing the correct amount of hot water for your application.

Average length of tub inches
Average width of tub inches
Average depth of tub inches
 
You need gallons of hot water to fill your Tub or Jacuzzi
 

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Here is a detailed analysis to help you calculate how much you can save heating your water with an EMI water heater, or propane versus electricity.

Fill in the boxes below based on an average day and the gallons will automatically fill in. Then hit the calculate button and see the the potential savings.

An average electric rate of 19¢ per kWh is used in this model.

An average propane cost of $1.51 per gallon is used in this model.

  # of Avg. Gallons
Shower(s)
Bath(s)
People shaving
Hands / face washing
People shampooing
Dishwashing by hand
Automatic dishwasher
Food preparation
Loads of laundry
 
Your estimated daily hot water usage is Gallons
 
Estimated cost to operate an Electric
Water Heater per day at 19¢ / kWh:
 

  Estimated cost to operate an EMI 
 Water Heater per day at 19¢ / kWh:

   

  Estimated cost to operate a Propane
  Gas Water Heater per day 
  at $1.51 / gallon of propane:

 
Estimated Daily savings using Propane:
 
Your annual savings using Propane:
 

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