Furnaces that have earned ENERGY STAR® certification and have an Annualized Fuel Utilization Efficiency (AFUE) rating of 96 or higher deliver more heating using less natural gas.

Replacing an older model 80 AFUE furnace with a new AFUE 96 rated furnace could result in annual savings of approximately $60.


To qualify for a rebate, Applicants must receive a City of Medicine Hat residential Natural Gas utility statement in their name, in addition to all other eligibility criteria listed under Determine eligibility on the Existing Homes Incentive Program main page.


To qualify, the ENERGY STAR® certified furnace(s) must:

Rebate amount

$350 per qualifying unit

Maximum rebate: $700 (2 qualifying units)

Required documentation

Attach all required documentation for each furnace, as outlined below.

Omission of required documentation, and/or photos that do not clearly show the model and serial numbers for each unit, will result in an incomplete application, which will be declined by HAT Smart. A new application will be required and placed in the queue for processing based on the date it is received by HAT Smart. Payment may not be made if funds are fully subscribed.

ENERGY STAR® certification

To find proof of ENERGY STAR® certification, you will need the Brand Name and Model Number of each installed furnace before beginning your search.

Click on the link above and select the following from the left side menu:

  • Fuel Type: Natural Gas
  • Brand Name
  • Efficiency (AFUE) to include 96 AFUE and above
  • Markets: Canada

Once you've found your model number, click on the product name to view/print the product specifications to submit with your final application.

Check the certificate to make sure all search criteria are shown.


All photos must clearly show the model and serial numbers for each qualifying unit.


All receipts and invoices must be dated between January 1 and December 31, 2022 and include:

  • A detailed description of the project/purchase*
  • Model and Serial Numbers for each qualifying unit
  • Total costs

Proof of payment is required for each receipt/invoice.

* If details are not available on receipts/invoices, you must provide product information that clearly shows the model number, description and Program eligibility. This information can be obtained from either the retailer or the manufacturer’s website.

Other rebates

Confirmation of rebate amounts received, or to be received, from complementary municipal, provincial, and/or federal government programs.

Learn how to apply

Frequently asked questions

How much energy will I save by upgrading my furnace?

Refer to the Renovation Upgrade Report provided by your energy advisor.