ECONNEX

Select the Right Size of Water Heater

Find the perfect fit for your needs! Discover the ideal water heater size with our expert tips and ensure efficient, reliable performance.

right size of water heater

Published on

By Rajesh Kumawat

Energy Comparison

Hot water accounts for about 25% of the average home energy costs. and Purchase what suits your family's needs and at the same time save money.

Simultaneous use of the hot water system is one of the fundamental determining factors. The number of people in your home combined with how and when they use the hot water.

Let’s discuss it further.

Determine the size you need

Sizing Storage Tank & Heat Pump Water Heaters:

To properly size a hot water tank, calculate peak hour demand and compare it to different models' first-hour ratings. The hot water tank should have a first-hour rating within 1-2 gallons of peak-hour demand.

First-hour rating is the gallons of hot water the tank can supply per hour after it has been filled. This depends on gallon capacity, size, and source of heat.

How to calculate peak hour demand:

  1. Determine what time of day your household uses the largest amount of hot water.
  2. List of different ways how the hot water is used at this hour.
  3. Calculate the total gallons used in this hour by multiplying gallons used per activity by the total times completed (see example chart below).

Comparing Water Heater Size to Space Available

Dimensions of the latest water heaters are typically 2 inches wider and 2 inches taller than old models.  If a standard-size water heater can’t fit the space, consider short and tall alternatives.  A tankless water heater is the best choice when space is an issue.

The size of the hot water system you need primarily depends on your family’s peak usage period and when you use additional hot water, as opposed to the number of bathrooms or people. Taking time to consider your actual usage before buying can save you energy and money.

Energy Comparison
Related Blogs
Energy Discounts
How do energy discounts function? Explore the mechanics behind these offers and learn how to maximize savings on your power bills.
Energy Discounts
Why have Energy Prices Risen?
Uncover the reasons behind the recent surge in energy prices. Explore the factors influencing the rise in costs.
The Burden Of High Energy Prices
Solar Panel Size: How Many Solar Panels Do I Need?
Discover the number of solar panels you need with our comprehensive guide on solar system sizing. Optimize your solar investment and embrace a greener future.
how many solar panels do i need
Different Types Of Discounts
Different Types Of Discounts
Different Types Of Discounts
Electricity Fees And Charges
Decoding electricity fees and charges! Navigate the complexities of your energy bill, understand costs, and find ways to save smartly.
Electricity Fees And Charges
HVAC Systems How Much Does It Cost You?
HVAC systems demystified! Uncover the true cost of heating and cooling your space and learn to optimize efficiency and savings.
HVAC Systems How Much Does It Cost You?