What lets a flex vent run work on these appliances is a pair of adapter collars, and the Enviro Flex Vent Adapter Collars, part 50-3788, are that part: a set of two 4 in. x 7 in. collars for the Enviro Q2, Q3, G39 and the models listed below. They adapt co-axial flex vent to the fireplace, carry the vent run, and then adapt back to rigid venting.

Fit

• The collars include a set of two, matched to the Q2, Q3 and G39 flue collar size.
• For the C Series, G42 and G50, choose the 5 in. x 8 in. version, part 50-3789.

What it adds

This kit is sized specifically for the 4 in. x 7 in. flue collar on these appliances, distinct from the larger 5 in. x 8 in. collars used on other Enviro models. It allows any CSA or UL flue gas certified 4 in. x 7 in. aluminum or stainless steel co-axial flex to be used for the vent run before transitioning back to rigid pipe at the wall penetration and termination.

What's in the kit

• Two flex vent adapter collars, 4 in. x 7 in.

Specifications

• Collar size: 4 in. x 7 in.
• Quantity: set of 2
• Fits inside a standard 4 in. x 6 5/8 in. vent, fastened with three screws to the vent collar

Installation

Let the appliance cool completely before installing these collars.

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