If your stove's flames have gone flat and lazy, or you're seeing more smoke and less fire than you used to, the secondary air tubes are worth a look — pitted or burned-through tubes stop feeding the air that keeps combustion clean. This full set of three tubes for the Enviro 1200 Series covers the front (50-1099), middle (50-1103), and rear (50-1102) positions.

Key Benefits

• Replaces all three tube positions at once, so wear across the set is addressed together
• Restores proper secondary air delivery for longer, more even burns
• Reduces the load on any single tube by renewing the full set rather than patching one section
• Direct-fit tubes sized for the 1200 Series firebox, no modification needed

Purpose

Secondary air tubes deliver preheated combustion air above the fire to burn off smoke and gases that would otherwise go up the flue, improving efficiency and reducing visible smoke output.

Other Notes

Inspect tubes for scaling, warping, or holes each season before burning, since a compromised tube in one position can reduce airflow to the others.

While replacing air tubes, check the baffle board and firebricks for cracking or excessive wear, since these components work together to maintain proper combustion in the firebox.

Not sure it fits your unit? Contact us with your model number and we'll confirm before you order.