

Item #: GDI-320KT
SKU:
Price range: $478.00 through $578.00
A complete chimney liner run for the Napoleon Oakville X3, Oakville X4 and Rosedale 3 direct vent gas inserts: two 3" double ply aluminum flex liners, one for intake and one for exhaust, in 20, 2...
A complete chimney liner run for the Napoleon Oakville X3, Oakville X4 and Rosedale 3 direct vent gas inserts: two 3" double ply aluminum flex liners, one for intake and one for exhaust, in 20, 25 or 35 ft (GDI-320KT, GDI-325KT or GDI-335KT), with a co-linear chimney terminal, the Universal (GDI-229) or the High Wind (GDI-223). These are the 3" kits those inserts' manuals name, and the manuals call for one 3" intake liner and one 3" exhaust liner, 10 to 45 ft long. The liners slip over the terminal's sleeves, and its mounting plate is trimmed to sit on the chimney top. from $478.
Part number: GDI-320KT, GDI-229, GDI-320KT, GDI-223, GDI-325KT, GDI-229, GDI-325KT, GDI-223, GDI-335KT, GDI-229, GDI-335KT, GDI-223
Not sure this is the right part for your fireplace? Call (540) 212-9374.
No guides are available.
No video is available.
Q: Do You Ship to Me?
A: We ship to the contiguous United States only (no Alaska, Hawaii, U.S. territories, P.O. boxes or APO/FPO). Free shipping on orders over $99; orders of $99 and under ship for a flat $9.99. Large or fragile items ship by freight with curbside delivery, and the carrier calls to schedule the delivery appointment.
Q: When Will My Order Ship?
A: Typical delivery is 5–17 business days from the order date. Made-to-order items may take longer, as shown on the product page. You will receive tracking information once your order ships.
Q: What Payment Methods Do You Accept?
A: We accept major credit and debit cards (Visa, Mastercard, American Express, Discover), ACH bank payment, Apple Pay, Google Pay and Link by Stripe. You can also pay over time with Affirm, Klarna or Afterpay (subject to approval), or pay by direct bank transfer.
Q: Can I Cancel or Modify My Order?
A: Orders cancelled before they ship are refunded minus a 10% administrative fee. After an order ships, it is handled as a return under our Return Policy.
Q: Why Choose First Response Fireplace Products LLC?
A: First Response Fireplace Products LLC is an authorized dealer for the brands we sell, and every item includes the manufacturer warranty.
© 2026 First Response Fireplace Products LLC, All rights reserved
Before you go
Join the list for buying guides and new arrivals from an authorized dealer for every brand we carry. Every item includes the manufacturer warranty.
Please enter a valid email address.
No spam. Unsubscribe any time.
Questions? Call or text (540) 212-9374 · Monday–Friday, 9:00 AM–5:00 PM ET.