Important! Rocky Mountain Power's planned changes to the incentives and equipment qualifications associated with our energy efficiency program became effective October 24, 2014. For questions or additional clarification, please email HES@rockymountainpower.net.

Duct Sealing and Duct Insulation

duct sealing

Get up to $600 cash back

Don’t let energy slip through the cracks

Be wattsmart and save on duct sealing and duct insulation. When energy is lost through duct surfaces, heating and cooling equipment has to work harder to make up for the loss. As a result, you could be spending too much money to maintain comfort. Duct sealing and duct insulation can cut those heating and cooling costs by 30 percent.

Qualifications & Incentives

​​For services completed on or before October 23, 2014, please see the associated application located under the Application section below.

Services Electrically Heated
Customer Incentive
Electrically Cooled
Customer Incentive
Duct sealing (stand alone) $300 N/A
Duct sealing and duct insulation $600 $100

Ensure the home qualifies:

  • Must be an existing home, not new construction
  • Must have a minimum of 10 linear feet of exposed ductwork located in unconditioned space

Requirements for both duct sealing (stand alone) and duct sealing and duct insulation:

  • Work must be completed by a Program-Qualified HVAC Contractor listed on the Program-Eligible HVAC Contractors list. Please review our tips for hiring a contractor
  • Work must be completed in accordance with the specifications outlined in the Utah HVAC Trade Ally Program Manual
  • All physically accessible ducts located in unconditioned spaces must be sealed
  • Duct sealing must reduce duct leakage to the outside by 50 percent or more with a 100 CFM (Cubic Feet per Minute) minimum reduction
  • CAZ (Combustion Area Zone) tests are required for properties with non-sealed combustion heating and water heating appliances

Additional requirements for duct sealing (stand alone):

  • An electric heating system must serve at least 80 percent of the home's conditioned living space

Additional requirements for duct sealing and duct insulation:

  • An electric heating or electric cooling system must serve at least 80 percent of the home's conditioned living space
  • Pre-existing duct insulation levels may not exceed R-2
  • All physically accessible ducts located in unconditioned living spaces must be insulated
  • Services must result in final duct insulation of R-8 or greater
  • Duct sealing and duct insulation must be performed in the same project, with insulation installed after ducts are sealed
Additional program rules:
  • Mail all documents so they are postmarked within 180 days of the qualifying service completion
  • Incentive cannot exceed project costs
  • When applying for Duct Sealing and Duct Insulation, separate contractors may perform the two services. The duct sealing contractor listed on the application will receive the trade ally incentive

Required documents:

*Applicable only to businesses and non-individual customers applying for incentives

Definitions:

Electric Heating: A permanently installed, ducted system consisting of an electric furnace or heat pump serving as the home's current primary heat source

Electric Cooling: A permanently installed, ducted electric central air conditioner or heat pump serving as the home's current primary cooling source. Room air conditioners and evaporative coolers do not qualify

Non-Electric Heat: A heating system with gas, oil, or propane serving as the home's current primary heat source

Conditioned vs. unconditioned space - clarification notes:

For the most part, basements are conditioned spaces. Basements are not usually thermally isolated from the main living area and contain space conditioning ducts. Basements are also used for storage and frequently contain laundry facilities and other living spaces. Ducts serving unfinished basements are not always equipped with dedicated supply registers, although single registers at plenums are not unusual.

An unconditioned basement would have these properties: Thermally isolated from the main floor by insulation in the floor. Insulated, weather-stripped door (if above floor plane) and insulated stairwell walls where thermal plane penetrates floor, air sealed (caulked, foamed penetrations) wiring plumbing, sealed duct penetrations and sealed, insulated ducts. No supply registers.

While a crawl space is unconditioned space, the floor must be insulated prior to or at the same time ducts are sealed and insulated to thermally isolate the crawlspace. Failure to do this will increase the heating load of the home and potentially cause comfort issues.

Please see the Incentive Application for a list of required documentation and additional terms and conditions. Incentives and qualifications are subject to Utah Public Service Commission approval and may change with 45 days' notice. Additional terms and conditions apply.

Customer Eligibility

Residential electric customers residing in the state of Utah who purchase their electricity from Rocky Mountain Power on rate schedules 1, 2, or 3 qualify. Landlords who own rental properties served by the company in the state of Utah where the tenant is billed on rate schedules 1, 2 or 3 also qualify for this program. You can locate your rate schedule on your bill or by calling 1-888-221-7070. Incentive checks are only issued in the name of the Rocky Mountain Power account holder.

How to Apply

Prior to starting a project, find a contractor using the Program-Eligible HVAC Contractor list. Note that select incentives must be completed by a Program-Qualified Contractor. Review the Incentive Application with your contractor to determine eligibility requirements, incentive qualifications and review the list of required documents to submit for an incentive.

Incentive Application and required documents must be postmarked within 180 days of the service completion date. Incentive checks are issued within 45 days of receipt of the completed and approved Incentive Application. Checks are only payable to the account holder or verified third party payee. Incentives are not to exceed the purchase price of the equipment or service. Equipment and service work may be inspected for compliance.

Visit our Frequently Asked Questions page for questions regarding trade allies or how to receive your incentive.