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In recent years, more and more homes have undergone energy efficiency improvements such as upgraded insulation, improved air sealing and the installation of energy-efficient windows and doors leading to increased air tightness of the home.
As a result, mechanical ventilation is needed to distribute fresh air evenly throughout the home and maintain a healthy living environment.
Heat and Energy Recovery equipment extracts heat and/or energy from stale air exhausted to the outside of the home. The recovered energy is used to reduce the heating of fresh air delivered into the home.
Duct insulation ensures minimal heat is lost before conditioned air is delivered to conditions spaces. The HAT Smart Existing Homes Rebate for HERV/ERV considers this cost in the total rebate value for the HERV/ERV unit and does not provide a separate rebate for duct insulation.
Eligibility criteria
If installation of a new system is required as a result of improved air tightness following other air sealing upgrades, the EnerGuide Home Evaluation Renovation Upgrade Report must indicate that the system is required for this reason.
For replacement of an existing system, the efficiency of the replacement unit must be rated higher than the existing unit. Proof of the higher rating of the new system will be required.
All units must be Energy Star Certified to the most recent published version and must appear in section III of the Home Ventilating Institute's Certified Products Directory.
Heat pumps are year-round space conditioning systems which provide heating and cooling. An air-source heat pump moves heat and energy from inside to outside in the summer, and from outside to inside in the winter.
Duct insulation ensures minimal heat is lost before conditioned air is delivered to conditions spaces. The HAT Smart Existing Homes Rebate for Air-source Heat Pumps considers this cost in the total rebate value for the Air-source Heat Pumps and does not provide a separate rebate for duct insulation.
Both single-package split and mini-split units are eligible for a rebate under the HAT Smart Existing Homes Incentive Program.
Eligibility criteria
The unit must be Energy Star® Certified to the most recent published version.The unit must satisfy at least 50% of the designed heating load for the home as described on the contractor quote.
An Air-Conditioned, Heating, and Refrigeration Institute (AHRI) Reference Number is required for indoor/outdoor combination units.
Rebate amount
Maximum rebate: $2,250 per home, per homeowner
Rebate amounts are paid on each qualifying unit.
Pre-Renovation EnerGuide Home Evaluation
This service is conducted prior to beginning your project, and includes the following:
For more information on EnerGuide Evaluations or to see if you qualify for a rebate on this service, check the HAT Smart EnerGuide Home Evaluation webpage.
For Heat and Energy Recovery Ventilators (HERVs) or Energy Recovery Ventilators (ERVs), this includes:
For Air-source Heat Pumps, this includes:
Contractor Invoice and Paid Receipt
Contractor invoices shall reference the original quote(s) and receipts must show full payment has been made to the installer.
All invoices and receipts must be dated between January 1, 2026, and December 15, 2026.
Photographs shall show the installed equipment, nameplate label (including model and serial number(s) with all information legible. This may require more than one photograph.
Post-Renovation EnerGuide Home Evaluation
This service is conducted following project completion and includes the following:
Requests for Rebate which do not include the required information and documentation will be rejected by HAT Smart. A new Request for Rebate will be required, which will be processed in the order it is received.
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HAT Smart
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