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Gas Furnaces

New gas furnaces are highly energy efficient and provide a comfortable heat source in living and common areas. To maximize efficiency, select a furnace appropriate for the space it will be heating. Ensuring ducts are properly sealed can also help cut down on energy costs by decreasing air leaks, keeping warm air in and expenses down.

If you own an individual condominium unit, townhome, duplex, triplex or fourplex in Washington, visit our Washington Multifamily page to view available cash incentives for gas furnace upgrades.

To get started on your energy-efficient upgrade follow the steps below or contact a program representative.

  1. Establish your eligibility.

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    • Property’s heating must be provided by NW Natural, Cascade Natural Gas or Avista.
    • Cash incentives are available to all Oregon multifamily attached residential properties with two or more units including: duplexes, triplexes and fourplexes; side-by-side units; and stacked structures with five or more units. For specific incentives based on your building type see the “Details” tab for further eligibility requirements.
    • Energy-saving improvements must meet program requirements.
  2. Find a trade ally contractor or work with your own contractor.

    We can help you get started.

  3. Install equipment that meets the requirements listed on the Details tab.

  4. Complete and submit an incentive application with supporting documentation.

    • Proof of payment (invoice or receipt marked paid) and/or contractor’s invoice
    • A W-9 or Substitute W-9 form is required for investment properties.
    • Energy Trust must receive applications within 90 days from the date of purchase and installation.

    Download Application (PDF) Download Application (Doc)

    Send by Mail

    Energy Trust of Oregon
    Existing Multifamily Program
    111 SW Columbia St., Suite 945
    Portland, OR 97201

    Send by Fax

  5. Get your incentive.

    You should receive a cash incentive check within 6-8 weeks after all information is received.

    Note: A post-installation verification may be required.

Review the incentive application equipment specifications and requirements before starting your project.

For side-by-side and duplex, triplex and fourplex properties only Incentive Requirements
Gas furnace $1,600 per unit

Must have at least 95% Annual Fuel Utilization Efficiency (AFUE). Furnace must be primary heat source, not used as a backup heat source. Gas must be provided by a participating gas utility.

For stacked structures with 5 or more units only Incentive Requirements
Condensing gas furnace $8.25 per kBtu/h

Must have at least 91% Thermal Efficiency (TE). Input capacity must be less than 225,000 Btu/h input that must serve multiple units or a common area. Offices are not considered common areas. If TE is not provided, AFUE may be used. Must be part of a centralized heating system serving multiple units or regularly occupied multifamily common areas. Offices are not considered common areas. Gas must be provided by a participating gas utility.

Incentives are subject to funding availability and may change. Incentives are not intended to influence consumer decisions on fuel sources.

Instant incentives
An Energy Trust instant incentive is a cash incentive that is provided as an immediate discount on a customer’s invoice, rather than a cash-back incentive check after installation. To receive an instant incentive, purchase directly from a participating distributor.

Participating distributor
Thermal Supply – Portland

Participants receiving an instant incentive discount on equipment are not eligible to receive any additional Energy Trust incentives on same equipment.

Need Help? Contact Us.

We’re here to explain the process and benefits. Give us a call at 1.877.510.2130 or send us an email at