- Casing
- Internal tubular frame
- Double wall doors
- Rear doors on Model22 & larger
- G-90 galvanized steel
- Weatherproof construction
- Hinged service doors with flush-mount latches
- Six discharge options
- Blower
- FC-DWDI centrifugal blower assembly
- V-belt drive
- 100,000 hour greasable bearings (Model 18-236)
- Permanent lubricated bearings (Model 10-15)
- Solid steel shaft
- Split shafts with couplings on twin units
- Burner
- Wide-range, high capacity line burner
- Ip to 30:1 turndown ratio
- Electric-pilot spark ignition
- Burner Economizer Thermostat
- Burner-Observation Port
- Manifold Controls Vestibule
- Weatherproof enclosure
- Easy-access to manifold and controls
- Manifold built to required codes
- Electrical Controls Vestibule
- Weatherproof enclosure
- Easy-access to manifold and controls
- Exhaust-interlock terminals
- Terminal strip for quick service check
- Burner and blower service switches
- Gas Connection
- Motor
- Standard, high E, open-drip proof with adjustable motor mount
- V-belt drive
- Adjustable drive up to and including 25 HP
- Starter with burner interlock
- Lifting Eyes
- Standard heavy-duty lifting lugs
- Controls
- Electronic flame safety controls
- Ignition transformer
- Airflow proving control
- High-temperature safety controls
- Burner and blower service switches
- Remote Control Panel
- Summer-Off-Winter switch
- “Blower on” light
- “Burner on” light
- Other lights available
