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Natural Gas Hot Water Heaters

After heating and cooling, water heating is the next largest energy expenditure in a home. Today’s natural gas water heaters are more efficient than ever. The natural gas flame provides instant heat, allowing a gas model to efficiently heat water twice as fast as an electric model. Choose from two types of natural gas water heaters—storage, the most common type, or the newer, even more efficient, tankless water heaters. 

Storage Water Heaters:

  • Storage water heaters are the most common model used in the U.S.
  • Natural gas storage water heaters offer a ready reservoir of hot water – from 20 to 80 gallons – and are an economical way to heat water. The units usually consist of a steel tank lined with glass or another anti-corrosive material and require very low maintenance.
  • Because installation is relatively simple, they are a good choice for homes converting to a natural gas water heating system offering the homeowner many installation and location choices.




Tankless Water Heaters:

  • Natural gas tankless water heaters heat water on demand only as you use it and operate without the need for a storage container, or tank.
  • A tankless water heater only works when there is a demand for hot water. The hot water tap operates like an ignition key, triggering the burners as cold water enters the heater. 

Operating Costs




Experience life with natural gas

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It is important to have your gas appliance installed, inspected and serviced by a licensed professional.

We recommend that you hire a knowledgeable, experienced, licensed trade professional to install your natural gas appliances. Also, remember to inquire about financing options and rebate and incentive savings on high-efficiency products.

To find a contractor, please enter your zip code below and select an appliance.

Please note: Washington Gas does not guarantee dealers’ and/or installers’ work and recommends that you check references.



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Available Rebates



Increase your savings and your comfort.

In addition to saving money with lower utility bills, Washington Gas also has rebates available to customers in the District of Columbia, Maryland and Virginia.

Washington Gas partners with the District of Columbia Sustainable Energy Utility (DCSEU) to help Washington, D.C. residents save energy and money through energy efficiency programs and rebates. The DCSEU provides rebates to homeowners for the installation of energy-efficient appliances.


1. Eligibility

Check all requirements for your rebate. Your rebate form will list exactly what you need to purchase and have installed to be eligible for a rebate.

Be sure to check for the exact equipment, make, model and serial number before you make your purchase.

Gas equipment must be purchased and installed by a licensed contractor.


2. File

Rebate programs have a specific time period for when you can purchase and submit your rebate application form and proof of purchase.

Virginia application deadline: April 30, 2019
Maryland application deadline: December 30, 2017

Offer valid while funds last.


3. Complete

Complete the information requested on your rebate form.
Don't leave anything blank; all information requested is required to verify your purchase. Print clearly, preferably with black or blue ink, and be sure to sign the application form.


4. Mail

Mail your completed rebate forms and required information to the address provided.

Rebates are processed within six to eight weeks of receipt of a complete rebate application form along with all materials necessary to qualify. If it has been 12 weeks since you mailed your submission and you have not yet received your rebate, please call 877-240-9183.

Note: Rebate applications may be randomly selected for procedure audit. Such audits may extend the payment time referenced above by three to six weeks.

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