What must ducted heat recovery ventilators comply with?

Ducted heat recovery ventilators are systems designed to efficiently exchange indoor and outdoor air while recovering heat, thereby maintaining energy efficiency in residential and commercial buildings. They must comply with specific safety and performance standards to ensure their effectiveness and safety in operation.

The correct standard that ducted heat recovery ventilators must meet is UL 1812. This standard specifically covers the safety requirements and performance criteria for these types of ventilators. Compliance with UL 1812 ensures that the products are tested for safety against risks such as fire and electrical hazards, as well as operational reliability under various conditions.

While other standards mentioned—such as UL 1777, which pertains to ducted air heating and cooling appliances, UL 410 relating to the safety of electrical heating appliances, and UL 2450 which deals with energy recovery ventilation—are important in their own contexts, UL 1812 is specifically tailored to heat recovery ventilators, focusing on their unique characteristics and requirements. Therefore, it is essential for manufacturers and builders to adhere to this standard to ensure that the installations are safe and effective in their intended use.