Preferred Series Heat Recovery Ventilator (Best)

• Up to 84% energy recovery
• Automatic defrost
• Reduced humidity during heating season
• Reduced indoor air pollutants
• Horizontal, vertical or crossflow configurations
• Crossflow and counterflow cores
• Prefilter for incoming airstream
• Easy "no tools" maintenance
• Basic, standard or automatic controls
• Quiet operation
• 5-year limited warranty on parts
• Limited lifetime warranty on the core

Preferred Series Energy Recover Ventilator (Better)

• Up to 84% energy recovery
• Reduced humidity during cooling season
• Reduced indoor air pollutants
• Crossflow configuration
• Crossflow paper core
• Prefilter for incoming airstream
• Basic, standard or automatic controls
• Easy "no tools" maintenance
• 5-year limited warranty on parts