This rear secondary air tube is a genuine Enviro replacement part fitted to compatible Enviro 1700 series wood stoves and wood inserts, with 4 compatible models on record. The Enviro Secondary Air Tube - 1700 Rear (part 50-1100) replaces the rear air tube in the firebox of compatible Enviro wood burning appliances.

Purpose

Secondary air tubes introduce preheated air above the firebox, where it mixes with wood gases to support complete, clean combustion and maintain the stove's intended efficiency.

Key Benefits

• Supports correct secondary combustion for proper, safe appliance operation
• Direct-fit replacement for the rear tube position — no modifications needed
• Genuine Enviro factory part, not an aftermarket reproduction
• Addresses cracked, warped, or deteriorating tubes that can disrupt airflow
• Helps restore the stove's designed burn performance

Other Notes

All secondary air tubes in the firebox must be in place for proper operation, so inspect the full set when replacing any single tube.

Related Parts: when replacing this air tube, also inspect the other secondary air tubes and any firebrick or baffle components in the Air Tubes & Baffles category, since these parts wear together and affect the same combustion zone.

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