1. (1) Except as described in subsection (2) of this section and as modified by rules promulgated by the executive director or the commission pursuant to section 25-7-1506, this part 15 applies to the following new products:

   1. (a) Water heaters with a rated heat input capacity of two million BTUs per hour or less; and

   2. (b) Fan-type central furnaces that:

      1. (I) Require either single-phase or three-phase electric supply;
      2. (II) Are used for comfort heating; and
      3. (III) Have a rated heat input capacity of less than one hundred seventy-five thousand BTUs per hour and, in the case of combination heating and cooling units, a cooling rate of less than sixty-five thousand BTUs per hour.

2. (2) This part 15 does not apply to:

   1. (a) Products held in inventory in Colorado on the effective date of the applicable standard;
   2. (b) Products that were installed in manufactured homes at the time of construction;
   3. (c) Products designed expressly for installation and use in recreational vehicles; or
   4. (d) Products that do not burn fossil fuels.

Source: L. 2023: Entire part added, (HB 23-1161), ch. 285, p. 1713, § 9, effective August 7.