CFU offers cost-sharing rebates to help residential customers install energy-efficiency equipment, make thermal envelope improvements and recycle old appliances.
Residential rebate amounts and efficiency requirements are listed below. Some rebates don’t require pre-approval and others do. Download the printable rebate application listed below for more information. Download summary of rebates.
Apply for Rebates Online
Use our new online application to apply for your rebate now.
Appliances*
| Doesn’t require pre-approval | Requires pre-approval by CFU |
| Name | Rebate Amount | Printable Application |
Water Heater - Gas Tankless or Storage Tank
Equipment requirement: Uniform Energy Factor ≥0.87 and storage capacity ≤60 gallons | Up to $300 | 2021 |
Water Heater - Heat Pump
Equipment requirement: Uniform Energy Factor ≥2.0 and storage capacity ≤60 gallons | Up to $400 | 2021 |
*CFU must provide water heating fuel source.
Call CFU Energy Services at 319-266-1761 with any questions before you buy.
Appliance Recycling*
| Doesn’t require pre-approval | Requires pre-approval by CFU |
| Name | Rebate Amount | Printable Application |
| Standard Refrigerators (16 cu ft or larger) | $45 | Must use City Refuse Services (transfer station)* |
| Freezers (16 cu ft or larger) | $40 | Must use City Refuse Services (transfer station)* |
| Window Air Conditioners | $20 | Must use City Refuse Services (transfer station)* |
* If you take your appliance to the City of Cedar Falls Transfer Station, remember to first stop at the service desk and pay the $7.50 disposal fee. Next, sign the city's log of accepted appliances. The city will pass your participation information on to CFU monthly. There are no additional rebate forms for you to fill out. You may also call City Refuse Services at 319-273-8629 to request curbside pick-up of your appliance for recycling. In that case, the disposal fee will be charged in the Refuse section of your next Utility bill. There is an additional $5 fee for pick-up. ** Limit of 2 rebates per appliance type per account per year, appliances must be from facilities receiving electric service from CFU.
Lighting
| Doesn’t require pre-approval | Requires pre-approval by CFU |
| Name | Rebate Amount | Printable Application |
| LED Bulbs | Instant in-store rebate. Visit iowabebright.com for more information. |
LED Lighting Fixture
Equipment requirement: Must be permanent fixture in indoor property, ENERGY STAR® qualified | 50% of cost up to $8 per fixture or kit (limit 35) | Provided through Be Bright instant rebate program in 2021. |
Heating & Cooling (HVAC) Systems & Duct Work
| Doesn’t require pre-approval | Requires pre-approval by CFU |
| Name | Rebate Amount | Printable Application |
Natural gas boiler
Equipment requirement: ≥ 92% AFUE | Up to $400 | 2021 + HVAC Sizing Spreadsheet |
Natural gas furnaces with variable speed blower motors
Equipment requirement: ≥ 95% AFUE | Up to $200 | 2021 + HVAC Sizing Spreadsheet |
Central air conditioners
Equipment requirement: SEER ≥ 16.0 | Up to $300 | 2021 + HVAC Sizing Spreadsheet |
Ground-source heat pumps
(open or closed loop)
Equipment requirement: See printable application for details | $300/ton of new ground loop +
$300/ton of heating capacity installed | 2021 + HVAC Sizing Spreadsheet |
Air-source heat pumps
Equipment requirement: Multi-stage unit with ≥15.0 SEER and ≥8.5 HSPF | Up to $600 | 2021 + HVAC Sizing Spreadsheet |
Ductless mini split systems
Equipment requirement: Modulating Compressor(s) and ≥16.0 SEER and ≥9.0 HSPF | Up to $100/ton cooling | 2021 + HVAC Sizing Spreadsheet |
Duct work modifications
Equipment requirement: See printable application for details | See form for details | 2021 |
| WiFi Programmable Thermostat | 60% of cost up to $50 | 2021 |
Make sure your HVAC system size is approved for a rebate by using our HVAC Sizing Letter Alternative Spreadsheet.
Thermal Envelope Improvements
You must use a professional contractor and you must receive pre-approval from CFU for thermal envelope improvements (exceptions noted below). CFU will pay incentives on residential attic insulation provided that the existing insulation level is less than R-30. Homes with R-30 or higher insulation levels will see little return on the investment in additional attic insulation. Rebates applications may be submitted for projects that increase the attic insulation up to a maximum of R-49.
You can use any licensed contractor to qualify for CFU's air sealing and insulation incentives.
| Doesn’t require pre-approval | Requires pre-approval by CFU |
| Name | Rebate Amount | Printable Application |
Attic & Ceiling Insulation
Equipment requirement: See printable application for details | See form for details | 2021 |
Sidewall Insulation
Equipment requirement: See printable application for details | See form for details | 2021 |
Foundation Insulation
Equipment requirement: See printable application for details | See form for details | 2021 |
Duct Insulation
Equipment requirement: See printable application for details | See form for details | 2021 |
Rim/Band Joist Insulation
Equipment requirement: See printable application for details | See form for details | 2021 |
Air Sealing, Caulking, Weather Stripping
Equipment requirement: See printable application for details | 60% of contracted labor equipment & materials up to $200 | 2021 |
Exterior Doors
Equipment requirement: See printable application for details | $75 for doors with U-factor of 0.10 or less; $25 for doors with U-factor of 0.11-0.20 | Discontinued in 2021 |
Please contact CFU Energy Services at 319-266-1761 for more information about insulation project rebates. Not all insulation projects will qualify for incentives. NOTE: CFU’s lifetime rebate limits per address are 60% up to $1,000 ($200 for customers with propane heat) for each of two separate categories: sidewall, and foundation. Once CFU has rebated $1,000 in any of these categories (or $200 in air sealing/caulking/weather-stripping costs), all additional requests for reimbursement in that category will be denied. Some exceptions may apply; contact CFU Energy Services at 319-266-1761.
Residential New Construction
Cedar Falls Utilities offers a new construction program designed to encourage homeowners to build new houses that are highly efficient and ready for the future. Eligible customers will receive all energy and communication utilities from CFU.
| Doesn’t require pre-approval | Requires pre-approval by CFU |
| Name | Rebate Amount | Printable Application |
Future Ready Home
See printable application for details | $3,000 | 2021 |