Central Boiler Classic Edge HDX 960 Combustion Air Tube Replacement Kit (2500684)
$214.95A complete genuine replacement combustion air tube kit designed to improve airflow and efficiency in Classic Edge HDX 960 models.
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A complete genuine replacement combustion air tube kit designed to improve airflow and efficiency in Classic Edge HDX 960 models.


This is a direct replacement digital temperature controller for Classic furnaces after s/n 25151, featuring a customizable 10 ∘ operational window .

Kit for older Classic models. Includes fuse holder, mounting bracket, fuses, and wire.

Genuine OEM replacement ignitor kit for Central Boiler Maxim 255 PE pellet furnaces.

Premium burn chamber and gasket replacement for Central Boiler Maxim models. Ensures optimal efficiency, longevity, and heat retention. Select your Maxim model.


Premium brass sight gauge assembly kit including valve, cap, and elbow for Central Boiler, WoodMaster, and CleanFire models.

This kit (p/n 9263) provides push-fit fittings for installing a separate water-to-water heat exchanger onto a domestic water heater .

This kit replaces the door handle shouldered bolt with a bushing and longer-threaded bolt on CL 4030 or CL 5036 cast firebox doors .

This 5-pack of 5−A fuses (p/n 6648) is the recommended replacement for electrical protection in Dual Fuel furnace models .

This is the Litmus Paper (p/n 153) component only, used with discontinued water test kits (p/n 405/597) to measure water pH .

This 24V Transformer (p/n 4045) safely converts line voltage for use with low-voltage controls .

This relay kit (p/n 4528) provides protection for Dual Fuel Ready models (except CL 7260 ).

Replacement stainless steel covers for chimney tees. Available in 10″ and 8″ configurations to fit specific Central Boiler chimney kits.

This pack of 5 1−A Slow Blow fuses (p/n 8470) protects the door solenoid from electrical overload in various furnace models .

The stainless steel p/n 2500467 float switch is a universal replacement for monitoring the water level in E-Classic, Maxim, Classic Edge, and Forge models .


This kit joins two ends of ThermoPEX piping with a twelve-inch rubber splice and band clamps, but fittings and crimp rings are sold separately .

A complete OEM combustion air tube replacement kit for WoodMaster HDX 760 and CleanFire 700 models.
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