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Gas Boilers, Steam Traps and Thermostatic Radiator Valves

Lower gas usage at your multifamily property by upgrading your gas heating system to a high-efficiency natural gas boiler. Energy Trust also offers incentives on steam traps and thermostatic radiator valves to lower gas usage at your multifamily property.

Gas Boilers, Steam Traps and Thermostatic Radiator Valves

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.

Equipment Incentive Requirements
High-Efficiency Condensing Boiler $6.50 per kBtu/h

Must have at least 94% efficiency, either Annual Fuel Utilization Efficiency (AFUE) or Thermal Efficiency (TE).
Must not be a backup, redundant or lagging boiler.
Must be used for HVAC purposes: boilers used for domestic hot water (DHW), pool heating, and “heat adders” that serve water-source heat pump systems do not qualify.
Must have at least 5 to 1 a turndown ratio of 5:1.
Boiler must be served by a participating gas utility.

Steam Traps $350 each

Must replace or repair a failed, open existing steam trap.
Steam traps must installed on a gas-fired steam boiler system served by a participating gas utility.
All steam traps in the system must be tested for failure status prior to replacement.
For trap repairs, invoices for steam trap repair parts are required.

Thermostatic Radiator Valves (TRVs) $200 each

Must be installed in a gas central hydronic or central steam systems only served by a participating gas utility.
Must replace manual, non-thermostatic valves at dwelling unit radiators.

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

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

Success Stories

Owens Adair Apartments, Astoria

Owens Adair Apartments, Astoria