Learn How to Buy a Water Heater in Just 2 Minutes

Learn How to Buy a Water Heater in Just 2 Minutes

October 16. 2020

Did you know that the cost of heating water makes up for as much as 20% of your entire household budget?

It seems only fitting that you give your first (or next) water heater a lot of thought.

However, we aren’t going to waste another minute and get right to a brief, yet detailed, buyer’s guide for people who are looking to learn how to buy a water heater. Here’s what you need to consider.

Types of Water Heaters

1.   Storage Tank

This is, arguably, the most common type of heater in the average household. As their name suggests, they are sold with a built-in insulated tank, in which water is heated and stored until someone opens a faucet.

Storage tank water heaters are known to cost less and consume less energy as compared to electric heaters. However, you should know that models that run on gas tend to have a higher initial cost.

2.   Tankless (On-Demand)

Instead of storing water, tankless water heaters rapidly heat your water supply by running it through heating coils whenever someone opens a faucet. This category of water heater is much more efficient than storage tank models, however, they offer a limited flow of rapidly heated water (around 3.5 gallons).

These models are best suited for people who don’t have too many running showers or dishwashers at the same time. Additionally, natural gas models are a better alternative to electrical systems, except for those homes that are already compatible with the latter’s electrical capacity.

3.   Hybrid (Heat Pump)

This heater captures heat from the environment and transfers it to your water supply while consuming up to 60% less energy as compared to electric heaters. While these models may cost more than their alternatives, they have a shorter payback time on your initial investment.

The only downside here is that hybrid models require at least 7 ft. between the floor and the ceiling and at least 1000 cubic feet of natural environment nearby to capture heat efficiently and drain discharges.


Water heaters with a built-in tank tend to hold up to 40, 50 and 55 gallons (sometimes even more) of heated water. Naturally, the size you settle for should depend on your peak water usage or the number of people using the system.

For instance, a family of 4 may take showers while simultaneously running a dishwasher and washing a couple of loads in a washing machine. This would total about 100 gallons of heater water, however, this doesn’t mean you should settle for a 100-gallon tank.

What you need to look-up is the first-hour rating of each model, which in simpler terms, is the number of gallons of heated water a particular model can deliver in the first hour after it is full.

On the other hand, tankless water heaters don’t need to hold water, but their GPM rating (gallons-per-minute) should help determine how much heated water they can deliver in a specific period of time (the average shower uses about 2.5 GPM of water).

Other Important Features

Digital Display

If you prefer customized operation while monitoring levels in varying temperatures, a digital display will make your life a lot easier. Some digital displays also have a ‘Vacation Mode’ that increases energy efficiency while you’re away.

Glass-Lined Tank

This feature has the sole purpose of reducing corrosion.


The typical coverage for water heaters runs between 3 to 12 years. The longer the warranty, the thicker the insulation and the larger heating elements it uses.

List Rub-A-Dub Plumbing As Your Emergency Professional Plumbing Service

So, which water heater is it going to be?

Whichever water heater you choose for your home, you can easily contact an emergency plumber for installation or repairs by calling Rub-A-Dub Plumbing.

We have no hidden fees, always pull-off a squeaky clean job and our immediate response teams are available 24/7. Go ahead and contact us for an estimate by emailing us at info@rubadubplumbing or calling us directly at 903-686-0727.

You can also visit our website to find out more about our services and where our services are available.



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