This model supports a media temperature range of 23°F to 250°F (-5°C to 121°C)

ensuring precise fan speed regulation across both heating and cooling cycles

System Efficiency: Restores proper burner performance and combustion stability in compatible atmospheric furnaces

Is the EF33CW271 compatible with LP (Propane) systems

making it the reliable choice for contractors focused on long-term system performance and air quality

Lochinvar & A.O. Smith 100112666 Burner 321042-401 This model supports a mediaThe Lochinvar & A. O. Smith 100112666 Burner is a critical 16 inch Natural Gas Burner Assembly engineered for high recovery commercial and residential water heating applications. As an OEM component, this assembly features a #30 Orifice precision drilled to maintain exact BTU input and stoichiometric air fuel ratios. For technicians managing combustion analysis, this 100112666 burner head ensures a stable flame envelope, effectively reducing CO