Overview
Forever Flex Premium Pre-Insulated liner comes from the factory with the insulation already bonded around the stainless liner, so there is no separate wrap to install. It is the fastest way to an insulated wood stove liner, which many stove manuals and codes require. This is liner only, pre-cut to length. Buy from StoveSource and pay no sales tax in any state.
Want the cap, top plate and connector too? See the pre-insulated chimney liner kits.
Sizes and part numbers
| Diameter | Length | Alloy | Part number |
|---|---|---|---|
| 5" | 30 ft | 316Ti | L5S530PI |
| 5" | 40 ft | 316Ti | L5S540PI |
| 5.5" | 40 ft | 316Ti | L5S5.540PI |
| 6" | 20 ft | 316L | L5S620PIL |
| 6" | 20 ft | 316Ti | L5S620PI |
| 6" | 25 ft | 316L | L5S625PIL |
| 6" | 25 ft | 316Ti | L5S625PI |
| 6" | 30 ft | 316L | L5S630PIL |
| 6" | 30 ft | 316Ti | L5S630PI |
| 6" | 35 ft | 316L | L5S635PIL |
| 6" | 35 ft | 316Ti | L5S635PI |
| 6" | 40 ft | 316Ti | L5S640PI |
| 7" | 35 ft | 316Ti | L5S735PI |
| 7" | 40 ft | 316Ti | L5S740PI |
| 8" | 20 ft | 316Ti | L5S820PI |
| 8" | 25 ft | 316Ti | L5S825PI |
| 8" | 40 ft | 316Ti | L5S840PI |
Matching parts: pulling nose cone and quick connector (6" pre-insulated versions available).
Specifications
- Brand: Forever Flex (Olympia Chimney Supply)
- Liner: 316Ti (or 316L) stainless steel, factory pre-insulated
- Fuel: wood, coal, oil, gas
Parts for your liner install
- Top of the chimney: rain cap, Deluxe Top cap and plate, top plates (No-Sag 13x13, No-Sag 13x18 and 18x18, flat, terracotta 8x8 or larger), storm collar and support clamp
- At the appliance: tee and tee cap, appliance connector, quick connector, elbows, offset box and reducers
- Installing it: pulling nose cone, insulation (FlexWrap blanket or Super Wrap kit), liner coupling and mortar collar
See every fitting in chimney liner parts and fittings.
Why buy from StoveSource: Authorized dealer · No Sales Tax · Free shipping over $250 · 1-888-914-0022
Shipping & Returns
Free shipping on orders over $250 · ships in 1–3 business days.
Free shipping on orders over $250 to the continental US; a flat $22.95 shipping fee applies to orders under $250. Accessories and parts ship by parcel carrier (UPS, FedEx, or USPS), typically in 1–3 business days.
Returns. Unused, uninstalled items in original packaging can be returned within 30 days, subject to a 15% restocking fee.
Sold by StoveSource (authorized dealer). Ships directly from the brand's authorized distributor warehouse — see our Authorized Dealer page.