Air Conditioners

Central air conditioners that have earned ENERGY STAR® certification and have a Seasonal Energy Efficiency Ratio (SEER) rating of 16 or higher deliver superior efficiency and performance by incorporating advanced features. A 16 SEER unit could save approximately 70 kWh per year.


To qualify for a rebate, Applicants must receive a City of Medicine Hat residential Electric 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 central air conditioner(s) must:

  • replace an existing air conditioner(s),
  • have a SEER rating of 16 or higher (split system only), and
  • appear on the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) list of ENERGY STAR® Certified Air Conditioners at the time of purchase.

Rebate amount

$350 per qualifying unit

Maximum rebate: $700 (2 qualifying units)

Required documentation

Attach all required documentation for each air conditioner, 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, an AHRI Certificate is needed for each unit. You will need the Outdoor Unit Brand Name, as well as Model Numbers for each outdoor unit, indoor unit and furnace before beginning your search.

Click on the link above and select the following from the right column:

  • Outdoor Unit Brand Name
  • YES, under Labeled ENERGY STAR?

Review the search results to determine how to enter the model numbers for the remaining items in the search fields.

Search again (Show Search Fields) to enter the model numbers for the:

  • Outdoor Unit (left column)
  • Indoor Unit (left column)
  • Furnace (right column)

Once you've found your model number, click on the AHRI Certified Reference Number to view/print the AHRI Certificate of Product Ratings 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 and are required for each outdoor unit, indoor unit, and furnace.


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
  • 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 home’s cooling system?
Refer to the Renovation Upgrade Report provided by your energy advisor.
What is the difference between single and split-system air conditioners?

Single package air conditioners are usually used in small commercial areas. They usually include the coil, condenser and compressor all in one cabinet which is usually placed on the roof or next to the foundation of a home.

Split systems are the most common and economical option and can obtain higher efficiencies. These systems connect with the duct work in your home and therefore need to be correctly installed.

How do I choose the right size for my home?

Select a central air conditioner size or capacity to just meet the design cooling-load calculated. Over-sizing the unit will result in short operating cycles, which will not adequately remove humidity, resulting in an unpleasantly cold and damp home. Under-sizing the unit will result in an inability to attain a comfortable temperature on the hottest days.

Consult with an experienced Heating, ventilation, and air conditioning (HVAC) technician to discuss your options.

Should I replace both my outdoor condensing unit (which includes the compressor) and the indoor coil on my central air conditioning system at the same time?

Yes, under most circumstances. The indoor and outdoor components of central air conditioners are intended to operate together, and the rated SEER is based on tests of these components working together. Matching a new high-SEER condensing unit with an old indoor coil would result in an unknown SEER and probably suboptimum efficiency.