Specification

120 Braley Road, East Freetown, MA 02717 • TEL: [phone] • www.htproducts.com
A Closer Look
Exhaust Vent
Connection
Extremely Durable and Reliable – Minimal Maintenance Required
Intake Vent
Connection
Stainless Steel
Fire Tube
Heat Exchanger
2 Line 40
Character LCD
Display - Program
& Monitor Boiler
Operation
Sealed Electronic
Enclosure
(Moisture &
Corrosion Resistant)
Negative
Regulation Gas
Valve
Field Connection
Board
Condensate System
Integrated
Digital Control
Alternate
Bottom Return
Alternate
Bottom Supply
Alternate
Top Supply
Alternate
Top Return
Easily Removable
Cover
Spark Ignition
System with
Flame Monitoring
Modulating
Combustion
Blower Assembly
(Top connections not
available for EFT-55,
EFT-80 & EFT-110 models)
EFT-155, EFT-199, EFT-285 & EFT-399 Models