TDS PDF

Ducted Heat Recovery Ventilators (Edition 4, published May 3, 2013; revisions through July 19, 2018). Original standard UL 1812 2018-07 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 1812 2025-04

Ducted Heat Recovery Ventilators (Edition 4, published May 3, 2013; revisions through April 13, 2021). Original standard UL 1812 2021-04 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 1812 2025-04

Ducted Heat Recovery Ventilators (Edition 4, published May 3, 2013; revisions through December 7, 2021). Original standard UL 1812 2021-12 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 1812 2025-04

Ducted Heat Recovery Ventilators (Edition 4, published May 3, 2013; revisions through May 3, 2022). Original standard UL 1812 2022-05 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 1812 2025-04

Nonducted Heat Recovery Ventilators (Edition 5, published February 29, 2012; revisions through July 19, 2018). Original standard UL 1815 2018-07 in PDF full version. Additional info + preview on request

Document status: Replaced by

Nonducted Heat Recovery Ventilators (Edition 5, published February 29, 2012; revisions through April 21, 2021). Original standard UL 1815 2021-04 in PDF full version. Additional info + preview on request

Document status: Replaced by