Installation Guides
Download installation, wiring, and setup instructions for Hoyme dampers, relay adaptors, and air exchangers.
If you need assistance or cannot find the guide you're looking for, contact our support team.
Over 40 years of engineering HVAC dampers, controls, and fresh-air components trusted by contractors, inspectors, and distributors across North America.
Who We Are
Hoyme Manufacturing designs and builds specialized HVAC dampers, relay adaptors, and fresh-air components for residential and light-commercial forced-air systems.
Since 1984, our focus has been simple: create components that install quickly, control air reliably, and meet evolving energy and ventilation codes. Today, Hoyme products are trusted by contractors, homebuilders, engineers, and distributors across North America.
What We Build
Hoyme specializes in:
- Motorized dampers for controlled combustion air and fresh-air ventilation.
– Non-motorized dampers for backdraft prevention and airflow control.
– ADP interface relay adaptors that simplify control wiring and integration.
– Furnace fan–generated air exchangers that deliver fresh air using existing ductwork.
Every component is engineered for clear labeling, clean wiring, and dependable airflow control in modern HVAC systems.
Who We Serve
Hoyme components are used every day by:
HVAC contractors who need repeatable installs with minimal call-backs.
Homebuilders and developers who want systems that pass inspection smoothly
Mechanical engineers and designers specifying reliable ventilation solutions.
Inspectors looking for clearly labeled, code-compliant components in the field.
HVAC wholesalers and distributors who depend on stable inventory and consistent quality.
Our Origins
Hoyme Manufacturing began with a problem in a single farmhouse. In the 1970s, founder Cliff Hoyme followed code and installed a passive fresh-air supply duct for combustion. The result was what many homeowners still experience today: an uncomfortably cold basement, wasted energy, and unnecessary strain on the heating system.
Cliff’s solution was simple but powerful — use motorized dampers to control when and how outside air enters the system. That idea grew into a full line of CSA-approved combustion-air and ventilation dampers designed to reduce energy waste, improve comfort, and support modern energy codes such as the Model National Energy Code for Houses (MNECH).
Since then, thousands of contractors, homeowners, and even code officials have installed Hoyme dampers to solve the same problem: uncontrolled cold air and inefficient combustion air.
How We Support Your Projects
Hoyme backs every product with practical support and clear documentation.
– Installation and wiring guides that are inspector-ready and easy to follow.
– Technical support for product selection, wiring questions, and code-compliance guidance.
– Reliable lead times and stocking programs for HVAC distributors.
Whether you’re designing a system, installing dampers on site, or supporting contractors as a wholesaler, our team helps keep your projects moving without delays.