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Water Heater Information


Water Heater Tax Credit
You can get a credit on your Oregon income taxes for purchasing  premium efficiency water heaters, solar water heaters, and wastewater heat recovery systems.
 
Eligible models are included on the Oregon Department of Energy list of qualifying systems. (See qualifying lists in right-hand column.) We update these lists as qualifying equipment comes on the market. 
 
The tax credit is based on the amount of energy saved above standard models. The tax credit  is the amount noted on the list of qualifying equipment or 25 percent of the net purchase price of the equipment (not including labor), whichever is less. 
 
To qualify for a tax credit, you must have an Oregon income tax liability. If you do not have an Oregon income tax liability, you may choose to transfer your tax credit to an individual who does. This is done by checking the Pass-through Option section on the application form. More information is on the form.
 
The equipment must be located in an Oregon dwelling that is your primary or secondary residence to qualify for a tax credit.
 
Important: Applications for tax credits must be received by the Oregon Department of Energy no later than April 1 of the year following the purchase, even if the tax credit is carried forward.
 
Water Heaters
Only premium efficiency water heaters are eligible for a tax credit. The premium efficiency water heaters are tankless water heaters (also called instantaneous, on-demand or point-of-use), heat pump water heaters and combination ("combo") space and water heating systems (see discussion below). Conventional tank-type water heaters are not efficient enough to qualify for a tax credit.
 
Qualifying tankless water heaters must have a minimum energy efficiency rating of 80 percent. In comparison, a tank gas water heater in the typical home is only 55 percent energy efficient. This means the average homeowner will save about 40 percent of their annual energy used for domestic hot water by installing a qualifying tankless water heater. Additionally, qualifying tankless water heaters must have a variable firing rate between no more than 24,000 BTU and at least 140,000 BTU. Electric water heaters must have a COP of at least 100%. 

Solar Water Heating
You can get a tax credit of up to $1,500 for buying a solar water heating system for your home. Oregon´s certified solar contractors can pre-approve your tax credit. Be sure to get an OG300-certified system that meets the Oregon Solar Energy Industry Association tank standard.
 
The Oregon Residential Energy Tax Credit brochure (pdf) explains how you´ll save on energy bills and how to apply for the credit. Contact The Oregon Department of Energy with any questions that aren´t answered in the forms linked to the right (503-378-4040 in Salem or 1-800-221-8035 toll-free in Oregon).

 


The Energy Factor

Energy Factor (EF) is an overall efficiency rating of the water heater. The higher the EF, the more efficient the model. Water heaters with high EF ratings may cost more initially but save energy and money in the long run. Eventually, they will pay for themselves through a lifetime of energy savings.

Water heaters listed in the energy factor ratings include:

  • Electric storage water heaters with energy input ratings of 12 kWh or less and with a storage capacity of not less than 20 gallons nor more than 120 gallons
  • Gas storage water heaters with energy input ratings of 75,000 BTU/Hr. or less and with a storage capacity of not less than 20 gallons nor more than 100 gallons
  • Gas instantaneous water heaters with input ratings greater than 50,000 BTU/Hr. but les than 200,000 BTU/Hr.

First Hour Rating

Another important factor in choosing a water heater, the 1st Hour Rating is an indicator of how much hot water a particular model can provide. The rating, in gallons of usable (desired temperature) hot water is reached by combining the amount of usable hot water stored in the tank plus how many gallons of usable hot water the water heater can generate in one hour of operation. For example, if a 40-gallon natural gas water heater will store 31 gallons of usable hot water and can deliver 41 gallons of usable hot water in the first hour, it’s 1st Hour Rating is 72 gallons. 1st Hour Ratings are included in the Energy Factor charts.

National Average Energy Costs

  • $0.1065 Cost per kWh. (Electric)
  • $1.2180 Cost Per Therm. (Nat. Gas)
  • $1.8700 Cost Per Gal. (Propane Gas)

 The ratings documented on this chart are also listed at www.gamanet.org

 


Energy Trust of Oregon Programs

Go to https://www.nwnatural.com/content_yourhome.asp?id=228


Qualifying electric water heaters must meet the energy factors listed below:

Tank Size                                   Energy Factor

59 gallons or less                         .93 or greater

60 gallons or greater                     .91 or greater

http://oregon.gov/ENERGY/CONS/RES/tax/appheat.shtml

 http://www.goodtobegreen.com/or_energy_rebate.aspx