Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
A cracked stove door glass only works out if the new panel matches your model’s door frame exactly before you order. A panel that is a fraction off won’t seat on the gasket (the rope seal that keeps smoke inside the door). A panel with the wrong shape won’t clear the corner arch. The six replacements below are all real glass panels or glass kits built for specific wood and pellet stove doors — no universal sheets, no guesswork. Start with your stove’s model number and the measurements of the old glass, then read which pick fits your door.
This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Each option below pairs a stated panel size with the model list it serves, so you can check your stove before you buy. I’ve flagged the glass type, the included gasket, and the honest catch on each pick to make the choice simpler. Match your stove’s model number and cutout size to the listing before you order.
Top Picks
How To Choose The Best Wood Heater Glass Replacement
A stove door glass is not a window pane you can improvise. It sits inches from a live fire, held in a steel frame, pressed against a gasket, and heated to temperatures that would crack ordinary glass. Order the wrong size and the panel rattles or cracks; order the wrong shape and the door won’t close flush. These four checks keep you on the right panel.
Measure the cutout, not just the glass
Take the old glass out and measure its widest point edge to edge. Then measure the opening in the door frame where it seats. The two numbers tell you whether a replacement will drop in or fight you. Panels listed at 9-1/8″ x 9-1/8″ and panels listed at 12 1/4″ x 9 1/16″ are not interchangeable, no matter how close they look on a photo. If your old glass has an arch on one corner, note which corner — that curve is a fit point, not decoration.
Check the model list against your stove plate
Every legit replacement names the stove models it serves, and that list is your safety net. A Vermont Castings panel built for the Defiant Encore and Madison won’t seat in a US Stove Magnolia door, and a Lopi panel sized at 15 ⅜” x 8 ⅞” won’t seat in a Quadra-Fire 3100. Read the model plate on the back of your stove, then match it to the listing before you click buy.
Know what the gasket does for you
The gasket is the rope-like seal that cushions the glass against the door and stops air leaking in around the edge. Some kits include it, some sell the glass alone. If your old gasket is flattened or missing, a kit with the gasket included saves you a second order — and an air leak around the glass is how stoves run hot and dirty.
Side-by-Side Comparison
| Model | Best For | Panel Size | Glass Weight | Included Gasket | Amazon |
|---|---|---|---|---|---|
| US Stove Door Glass Kit★ Best Overall | US Stove Magnolia and 5500-series owners | 12 1/4″ x 9 1/16″ | — | No | Amazon |
| Stove Parts For Less AC-G9Best Value Kit | Pellet and wood door replacement with seal | 9 1/8″ x 9 1/8″ | 1.5 pounds | Yes | Amazon |
| 1408629 Vermont Castings Right Door Glass | Defiant Encore, Encore and Madison right doors | 10-1/8″ x 8-7/8″ with arch | 1.5 pounds | No | Amazon |
| Endeavor/Parlor/Patriot Door Glass | Lopi stoves with a wide door opening | 15 ⅜” x 8 ⅞” | 2.5 pounds | No | Amazon |
| Door Glass for 3100 & 4300 Wood Stoves | Quadra-Fire 3100 and 4300 assembly | — | 3 pounds | No | Amazon |
| Hearthstone Heritage 8020 Glass | Hearthstone Heritage, Homestead and Mansfield | 17 9/16″ x 11 3/16″ | — | Yes, with tape | Amazon |
Detailed Reviews
1. US Stove Door Glass Kit
Our pick — 4.5+★ from 80+ verified ratings; the strongest balance of quality and price.
The panel that quietly matches a whole fleet of US Stove and Magnolia doors
If your stove door plate reads Magnolia or any of the 5500-series numbers, this is the panel that ends the hunt. It’s a single ceramic glass sheet measuring 12 1/4″ x 9 1/16″, built for the USSC 2015 Magnolia wood stove and a list of sister models from the 4027 through the 6500. That’s a broad net for one part, so most owners of these stoves land here on the first search.
Fit is the story this panel tells best. The model list is long and the size is fixed, so there’s no arching or trimming to worry about — either your door matches the 12 1/4″ x 9 1/16″ cutout or it doesn’t. Buyers of these stoves report the panel drops in clean against the door frame.
The honest catch is gasket. This listing is the glass panel alone, so if your old seal is flattened or crumbling you’ll want to order the gasket separately before you pull the door apart. A fresh pane against a tired gasket is how you get a smoky leak around the edge. Also confirm your stove is one of the listed models first — the panel is a dedicated fit, not a universal one.
What earns the top spot
- Ceramic glass sized 12 1/4″ x 9 1/16″ for a direct door match
- Covers a wide spread of US Stove models from the 4027 through the 6500
- Buyers praise the fit and build quality of this panel most
Where it asks more of you
- Gasket not included, so budget for a separate seal if yours is worn
- Dedicated to the listed models only — no universal fit
Best for: owners of a Magnolia or 5500-series US Stove who want a straight glass-for-glass swap.
Know before you install: the panel ships alone, so check your gasket condition while the door is open.
2. AC-G9 Door Glass Kit
A 9-1/8″ square pane that arrives with its own gasket in the box
The AC-G9 includes the seal along with the glass. Inside the kit you get a 9-1/8″ x 9-1/8″ pane and the gasket to seat it, so you’re not chasing a second part after the door is already apart. The glass is rated to resist very high temperatures up to 1,200° F / 648° C, with low thermal expansion — meaning it tolerates the heat cycling of a live fire without stretching and cracking.
The compatibility list is unusually long for a pellet and wood door part. It names a spread of models from the 18-MH and 50-SHW15 through the 24-ACD, 25 series, 28-3500 and 50-TRW35, so there’s a fair chance your stove sits somewhere on that roster. That breadth is the value here: one order covers the glass and the seal for a wide range of doors.
Here’s the practical difference between this kit and the larger Hearthstone panel below. This one weighs 1.5 pounds and measures 9.13 inches across, while the Hearthstone runs 17.56 inches long and 11.18 inches wide — so if your old pane is the wider size, this square kit will come up short. Match your cutout first, then enjoy the fact that the gasket is already in the box.
The real draw: a heat-rated pane up to 1,200° F / 648° C that ships with gasket included, so one order finishes the job.
Size is the gate: at 9-1/8″ x 9-1/8″ this is a compact square fit — a wider door opening needs the bigger panels.
Reach for this if: your door takes a 9-1/8″ square pane and the gasket needs replacing too.
Look elsewhere if: your glass cutout is the wide, near-foot-long shape the Lopi and Hearthstone panels are built for.
3. Vermont Castings Right Door Glass
The arched-corner panel your Vermont Castings door insists on
Square panes are easy; this one is not. The 1408629 is the right-door glass for the Defiant Encore 2190, Encore 1450 and 2550, and Madison 1650 and 1655, and it measures 10-1/8″ x 8-7/8″ with an arch cut into one corner. That arch is the whole reason to buy the genuine part: a generic rectangle won’t clear the right-hand door frame, no matter how close the numbers come.
It’s a dedicated Vermont Castings component, sold as part #1408629 and weighing 1.5 pounds. The 10.13-inch length is shorter than the Hearthstone’s 17.56-inch run and the 8.75-inch width sits just under the Lopi’s 8.88-inch height — so this is a door-specific piece, not a size that swaps between brands. Figure out which door is cracked first, because only the right side is covered here.
One fair caveat: glass this shape is fragile in transit, and any arched panel asks you to fit it gently into a frame that’s already been under fire. It’s not a part you install with force. If your edges are chipped and the arch is the reason you’re shopping, this is the correct Vermont Castings fit — just handle the install with patience.
Made for: a cracked right door on a Defiant Encore, Encore or Madison that needs the corner arch.
Think twice if: it’s the left door that failed or your stove is another brand entirely — this arch only fits its own frame.
4. Endeavor/Parlor/Patriot Door Glass
A long Lopi pane for the wide doors, rated for the fire’s full heat
Sized 15 ⅜” long, 8 ⅞” high and 3⁄16″ thick, this is the big horizontal pane for Lopi wood stoves — the Avenger, x96, 380-NT and the PA1 through PA5, plus the Endeavor, Parlor, Patriot and Answer. That 15.38-inch run dwarfs the 9.13-inch square of the Stove Parts For Less kit, so this is the pick when your door is wide rather than tall.
Heat is handled squarely. The glass is made to resist very high temperatures up to 1,200° F / 648° C with low thermal expansion, so it won’t swell and stress as the stove cycles hot and cool. At 2.5 pounds it’s the heaviest single pane among the smaller units, a fair reflection of the extra surface area you’re covering. The amber tint is part of the listed spec, so expect it rather than a pure clear pane.
What you give up is the gasket. This ships as a dedicated Lopi-fit panel only, so pull your old seal and inspect it before ordering. The other watch point is thickness: at 3⁄16″ it’s the chunkier end of the range, so confirm your door frame’s channel accepts it before you press it into place.
Where it leads: a generous 15 ⅜” x 8 ⅞” pane rated to 1,200° F / 648° C — real coverage for a wide Lopi door.
The catch: no gasket in the box and a 3⁄16″ thickness to check against your frame channel.
Best for: Lopi owners with the wide Endeavor, Parlor or Patriot door opening.
Skip the guesswork: measure your old panel’s length first — this one is deliberately long and won’t suit a compact square cutout.
5. Door Glass for 3100 & 4300 Wood Stoves
A Quadra-Fire glass assembly built for two specific model numbers only
Some parts are broad; this one is deliberately narrow. The Door Glass for 3100 & 4300 Wood Stoves is a Quadra-Fire glass assembly for models 3100 and 4300, listed under part number 7000-012. If that’s your stove, the search ends here. If it isn’t, the panel has nothing to offer — this is a dedicated assembly, not a size you adapt.
At 3 pounds it’s the heftiest glass in the group, and the reason sits in the word “assembly.” It’s built to drop into a specific door structure rather than be measured to the millimetre by you. The clear finish and glass material are straightforward, and the classic style name matches the stove family it serves. For a 3100 or 4300 owner, that dedicated build is the whole appeal: no arch to align, no thickness to second-guess.
Before you order, pull the model number off the back of the stove — 3100 and 4300 only, nothing else. The trade-off for that precision is zero flexibility; there’s no universal use here. For a 3100 or 4300 owner, that dedicated fit means no measuring or trimming at install.
The right call for: a Quadra-Fire 3100 or 4300 owner replacing a cracked door pane with the genuine assembly.
The limit to note: it serves only those two model numbers, so a different Quadra-Fire still needs its own dedicated part.
6. Hearthstone Heritage 8020 Glass
The biggest pane here, and the only one that brings gasket and tape
Nothing else on this list is this large. The Hearthstone panel measures 17 9/16″ x 11 3/16″, listed as 17.56″ long and 11.18″ wide, and it’s the replacement glass (part 90-57005) for the Heritage 8020, Homestead 8570 and Mansfield 8010, 8011 and 8012. Against the Vermont Castings 8.75-inch width, this pane runs 11.18 inches across, and against the Stove Parts For Less 9.13-inch square it’s a far broader cut — so it’s clearly a fit for larger firebox doors.
The kit side is where it earns attention. The gasket is included, and so is the tape that holds the gasket in place while you seat the glass — the small extra that turns a two-part job into one. With the door already off, having the gasket and tape in the same box saves a second order.
The honest note is care. A panel this size has more surface to stress, and it ships as the glass with its sealing supplies rather than a pre-assembled door — so install it squarely and don’t overtighten the frame. Check your model against the Heritage, Homestead and Mansfield list first, because a panel this big only makes sense on the stoves it was cut for.
Why it deserves a look
- Largest panel in the group at 17 9/16″ x 11 3/16″
- Gasket included, plus tape to hold the seal during fitting
- Genuine Hearthstone replacement part 90-57005 for five named models
The care it asks
- Big surface means install it squarely and don’t overtighten
- Dedicated to Heritage, Homestead and Mansfield — no universal use
Go here for: a Heritage 8020, Homestead 8570 or Mansfield owner who wants the glass, gasket and tape in a single kit.
Not for: compact door openings — this is the widest pane on the list and needs the larger frame it was cut for.
Know the Specs
Panel Dimensions (L x W x Thickness)
Every replacement is defined first by its size, because a wood heater door frame accepts one footprint. The Lopi panel lists 15 ⅜” x 8 ⅞” at 3⁄16″ thick; the Stove Parts For Less kit lists 9-1/8″ x 9-1/8″; the Hearthstone runs 17 9/16″ x 11 3/16″. Thickness matters as much as length and width — a 3⁄16″ pane won’t sit in a channel cut for a thinner sheet. Measure your old glass edge to edge at its widest point, then match that number to the listing rather than trusting a photo.
Heat Rating and Gasket
A stove door glass has to live beside a live fire, so look at the heat rating where it’s given. Two picks here state resistance up to 1,200° F / 648° C with low thermal expansion — low expansion means the pane tolerates hot-cold cycling without swelling and cracking. The gasket is the second half of the job: it’s the rope seal that cushions the glass and stops air leaking around the door edge. Kits that include the gasket (and tape to hold it) save you a second order; panels that don’t mean you should inspect the old seal before installing.
Common Questions
How do I know which replacement glass fits my wood heater door?
Can I use ordinary window glass in a wood stove door?
What does the gasket do and do I need a new one?
My stove door has an arched corner — can I fit a rectangular pane?
Why does glass thickness matter for a stove door replacement?
How tight should I tighten the door frame around new glass?
Does an included gasket save me a second order?
Can I measure the old broken glass to order a match?
Is a pellet stove door glass the same as a wood stove one?
Where do I find my stove’s model number for compatibility?
The Bottom Line
For most stove owners, the wood heater glass replacement winner is the US Stove Door Glass Kit. Its 12 1/4″ x 9 1/16″ ceramic panel (heat-proof glass that takes direct flame) fits a long list of Magnolia and 5500-series models, so you likely won’t need to hunt for a custom cut. Buyers give it its best marks for fit against the door frame. If you want the seal thrown in and a heat-rated pane, grab the Stove Parts For Less AC-G9. For a wide Lopi door or a large Hearthstone firebox, reach for the panel cut to that exact size — the Endeavor/Parlor/Patriot glass or the Hearthstone kit. Confirm your model number against the listing before you order — that single check is what makes the rest easy.
How we choose
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of November 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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