1. (1) Scope: These rules provide a voluntary energy efficiency rating system for single family residences to encourage voluntary energy conservation and the voluntary use in real estate transactions.

2. (2) Definitions:

   1. (a) "E.E.R." means Energy Efficiency Rating;
   2. (b) "Single Family Residence" means a structure designed as a residence for one family and sharing no common wall with another residence of any type.

3. (3) Energy Efficiency Rating: The Energy Efficiency Rating (E.E.R.) is to be determined by the following steps:

   1. (a) Determine the total energy used in the residence over the last 12 months' period in thousands of BTUs:

      1. (A) Determine electrical energy (KWH) used (source: Electrical bills or utility company). Multiply the total KWH by 3413 BTUs equals the total electric BTUs used. (Electric KWH) x 3413 = BTUs;
      2. (B) Determine natural gas therms used (source: Gas bills or the gas company). Multiply the therms used by 100,000 then by 0.75 (Efficiency Factor). This equals the total gas BTUs used. (Gas therm) x 100,000 x 0.75 = BTUs;
      3. (C) Determine heating oil BTU'S by multiplying total gallons by 140,000 then by 0.75 (Efficiency Factor). This equals the total oil BTUs used. (Oil Gallons) x 140,000 x 0.75 = BTUs;
      4. (D) Total the types of energy BTUs used in the residence to determine total BTUs used in the 12 months. (Electrical BTUs + Gas BTUs = Oil BTUs = TOTAL BTUs.);

      5. (E) Divide total BTU'S by one thousand equals total thousand's BTUs used

         TOTAL BTUs

         1,000

         = TOTAL THOUSAND BTUs USED

   2. (b) Determine the square footage of living (heated) space of the residence. (Source: House plans, measurement, or county assessor.);

   3. (c) Divide total thousand BTUs used by the square footage of living space. The results are the E.E.R. of the residence that year:

      TOTAL THOUSAND BTUs USED

      TOTAL SQUARE FEET LIVING SPACE

      = E.E.R.

Statutory/Other Authority

ORS 469.700

Statutes/Other Implemented

ORS 469.700

History

BCD 22-2011, f. 7-26-11, cert. ef. 10-1-11
BCD 5-2011, f. & cert. ef. 3-11-11
BCD 3-2010, f. 5-14-10, cert. ef. 7-1-10
DC 16-1978, f. 4-28-78, cert. ef. 7-1-78, Renumbered from 814-027-0105