EXACON Avi-Air Avi35 Hybrid Heat Recovery Unit

Energy-Efficient Heat Recovery Ventilation for Poultry and Livestock Barns

The Avi-Air Avi35 Hybrid Heat Recovery Unit is an agricultural ventilation solution designed to recover heat from outgoing barn air while introducing fresh outside air into the building.

Available through Exacon, the Avi35 combines heat recovery technology with an insulated polypropylene housing, EC motor technology, intelligent de-icing and automated washing capabilities to support efficient ventilation in agricultural facilities.

With a recovery-mode airflow capacity of 1,500 CFM and 35 square metres (377 square feet) of heat exchange surface, the Avi35 is designed to help reduce ventilation-related heat loss while maintaining fresh-air exchange.

For poultry and livestock producers throughout Southwestern and Central Ontario, the Avi-Air Avi35 offers an option for improving ventilation efficiency during colder operating conditions.

Key Features & Benefits

• Heat Recovery Technology: Transfers heat from outgoing barn air to incoming fresh air, helping reduce the amount of additional heating required during cold-weather ventilation.
• 1,500 CFM Recovery-Mode Airflow: Provides a manufacturer-rated airflow capacity of 1,500 cubic feet per minute in recovery mode.
• 35 m² Heat Exchange Surface: Features 377 square feet of heat exchange surface to support thermal energy transfer between incoming and outgoing air.
• Energy-Efficient EC Motors: Updated motor technology supports controlled ventilation operation and efficient motor performance.
• Intelligent De-Icing Cycles: Helps manage frost accumulation during cold-weather operation to maintain heat recovery functionality.
• Automated Washing Capability: Supports up to five washing cycles to help maintain the heat exchange system.
• Insulated Polypropylene Housing: Provides a durable, insulated enclosure designed for agricultural operating conditions.
• Insulated Access Door: Helps limit unwanted heat transfer through the unit enclosure.
• Wall-Mounted Installation: Designed for straightforward installation through a compatible exterior wall opening.
• GENIUS Compatibility: Supports integration with compatible GENIUS control equipment.
• Controller and Accessory Options: Available control components, valves, replacement cores and service accessories support different installation and maintenance requirements.
• EC Motor Retrofit Options: Manufacturer-listed conversion kits are available for upgrading compatible older AC-motor units.

How the Avi-Air Avi35 Hybrid Heat Recovery Unit Works

The Avi35 uses a heat exchange system to recover thermal energy that would otherwise be lost through conventional exhaust ventilation.

Step 1 — Warm Barn Air Is Exhausted

Air from inside the agricultural building is directed through the heat recovery unit.

During colder weather, this outgoing air contains heat generated by the barn’s heating system and internal operating conditions.

Step 2 — Outside Air Enters the Unit

Fresh outdoor air is drawn into the unit through a separate airflow path.

Step 3 — Heat Is Transferred

As the incoming and outgoing air streams pass through the heat exchanger, thermal energy is transferred from the warmer outgoing air toward the cooler incoming air.

This helps preheat the incoming fresh air before it enters the building.

Step 4 — Fresh Air Is Supplied to the Barn

The preheated fresh air is introduced into the building as part of the ventilation system.

By recovering a portion of the heat from outgoing air, the system can reduce the heating demand associated with fresh-air ventilation.

Step 5 — Cleaning and De-Icing Support Operation

Intelligent de-icing and washing functions help maintain the heat exchanger during changing operating conditions.

The system’s effectiveness depends on proper installation, maintenance, controls and operating conditions.

Contact County Line Equipment to learn more about the Avi-Air Avi35 Hybrid Heat Recovery Unit and discuss agricultural ventilation options for your poultry or livestock facility in Southwestern and Central Ontario.