Nordyne 901818 Combustion Chamber 321702-401 Universal Compatibility: Reversible rotation and

Universal Compatibility: Reversible rotation and dual-voltage support (230/460V) reduce the need to carry multiple van stock items

and FBN2001 units starting with serial number 4015

ensuring a leak-resistant seal when brazed into the copper line set

it requires an upstream gas pressure regulator to establish the high-fire and low-fire setpoints

Nordyne 901818 Combustion Chamber 321702-401 Universal Compatibility: Reversible rotation andThe Nordyne 901818 Combustion Chamber is a critical replacement component designed for Intertherm and Miller gas fired furnaces. This heavy duty assembly is engineered to withstand high thermal stress and contain the burner flame efficiently within the heat exchanger. As a direct OEM replacement part, it ensures proper fitment and maintains the factory specified pressure drops required for safe combustion. Technicians often source the 901818 chamber