2008 HVAC Changeout Information
The current 2008 Building Energy Efficiency Standards include a number of HVAC-related installation measures that require HERS Rater verification. These include correct refrigerant charge, adequate cooling coil airflow, maximum air handler fan watt draw, and the installation of temperature measurement access holes and saturation temperature measurement sensors. Many of these requirements are climate zone dependent, so please refer to the Building Energy Efficiency Standards (and the documents below) to determine applicability.
Energy expert Steve Easley and Mazi Shirakh from the California Energy Commission explain several significant changes in the 2008 Standards concerning HVAC changeouts.
CSLB News Release: Avoiding HVAC Building Permits Costly for Consumers
(PDF file, 2 pages, 41 kb) posted December 5, 2011.
Changeout Card for Homeowners
(PDF file, 2 pages, 303 kb). Posted: November 29, 2011.
Changeout Card for Contractors
(PDF file, 2 pages, 274 kb). Posted: November 28, 2011.
Guidance for Enforcement Agencies Regarding Approval Procedure for Weigh-In Method
(PDF file, 1 pages, 20 kb). Posted: March 2, 2011.
Template for Weigh-In Method Agreement
(PDF file, 1 pages, 109 kb). Posted: March 2, 2011.
Refrigerant Charge Verification: 70°F Return Air Requirement
(PDF file, 4 pages, 82 kb). Posted: October 29, 2010.
Residential HVAC Alterations and Registration of Energy Forms
(PDF file, 1 page, 37 kb). Posted: October 14, 2010.
HERS Verification Requirements for the Alternate Charge Measurement Procedure
(PDF file, 1 page, 20 kb). Posted: September 15, 2010.
Contractors State License Board letter to C-20 Contractors regarding Enforcement
(PDF file, 1 page, 54 kb). Posted: August 12, 2010.
Contractors State License Board Permit Violation Referral Form
(PDF file, 2 pages, 35 kb). Posted: August 12, 2010.
Climate Zone by City - This document lists California cities and their climate zones. (PDF file). Posted: August 16, 2010.
Permit Violation Referral Form, Contractors State License Board. (56 kb)
Disposal of Out-of-Service Mercury-Added Thermostats, Departmentof Toxic Substances Control, (552 kb)
Letter to Homeowners, California Energy Commission. (25 kb)
100% Testing By HERS Rater, California Energy Commission. (29 kb)
For information on HERS training and certification contact: