Welcome to Accurate Rater Network

Accurate Rater Network is a nationally recognized and respected energy and environmental training organization.  Accurate Rater Network, or ARN, is the training and certification division of Hathmore Technologies, LLC.  Hathmore Technologies, LLC, was founded in September of 1979 and is one of the oldest residential energy training and consulting companies in the USA.

ARN is a Building Performance Institute (BPI) training affiliate and provides training for BPI certified Building Analysts (Energy Auditors) and BPI certified Envelope Specialists. For Energy Auditors we offer diagnostic training sessions including hands-on combustion safety testing and training in identifying and working with HVAC systems, water heaters, insulation and other items that prove difficult for the energy specialist just starting out.

ARN is also a Residential Energy Services Network (RESNET) training provider for certified home energy raters or HERS raters and RESNET Field Inspectors.

ARN is a national LEED for Homes provider for the US Green Building Council (USGBC)

We have training sessions dedicated to specialized equipment use, maintenance and interpretation. Our training curriculum gives you the flexibility to learn and practice a little at a time, or to jump right in and cover a wide range of material all in one session.

Maps, directions and other location information to the ARN National Training facility can be found in footer below.