Hearth Pads for Wood & Pellet Stoves: R-Value, Size and Ember Protection
Updated September 2026
Most of the confusion around hearth pads comes down to one thing nobody explains up front: there are two completely different products sold under the same name, and they are not interchangeable.
One is an ember pad. Usually thin steel, sits low to the floor, and does one job — catching hot coals and ash that drop when you open the door to reload. The other is a thermal pad, built up with insulating material and rated with an R-value, which protects the floor from heat radiating off the bottom of the stove.
If your stove needs thermal protection and you put an ember pad under it, you have not actually protected anything. The reverse is just wasting money on insulation you do not need.
Which one does your stove need?
You do not guess at this. The stove's manual tells you. Every wood and pellet stove sold in North America lists a floor protection requirement, and it will say one of two things: either it requires non-combustible floor protection, where ember protection is enough, or it specifies a minimum R-value.
Drolet and Englander stoves fall in the first group — the firebox sits high enough that the floor underneath does not get dangerously hot, so a steel ember pad is all the manual asks for. ComfortBilt pellet stoves have their own matched pads sized to the ComfortBilt footprint.
If you cannot find the manual, the model number plus "floor protection" or "R-value" in a search usually turns up the spec sheet. Or call us with the model and we will look it up.
Sizing it
The pad has to extend past the stove on every side, and the front gets the most. The manual gives clearances, usually something like 16 inches in front of the loading door and 8 inches on the sides, measured from the stove body.
People underestimate the front clearance constantly, then end up with embers landing on bare floor a few inches past the pad. Measure the stove footprint, add the required clearance to each side, and that is your minimum pad size. Round up if you are between sizes.
Corner installs are their own thing. A rectangular pad in a corner either wastes a triangle of floor or sticks out awkwardly into the room. A corner-cut pad follows the wall and puts coverage where the stove actually is. If your stove is going in a corner, get the corner pad — it is not a style choice, it just fits better, and that same corner is usually where wall heat shields earn their keep.
Which pad fits which stove
We pulled the floor protection section out of the owner's manual for every wood stove we sell — seventeen models across both brands — and the answer to the first question is the same for all of them: continuous non-combustible protection, no R-value required. An ember pad is the correct product. The only thing you are actually choosing is size.
Clearances are identical throughout too — 16" in front of the door opening, 8" at the sides. What differs is the finished pad dimension each manual publishes. These are the USA figures; Canadian requirements are larger.
Drolet wood stoves
| Stove | Protection needed | Minimum pad (W × D) | Smallest pad we sell that fits |
|---|---|---|---|
| Deco Nano | Ember only | 31¼" × 38¾" | 41¼" × 44" black steel — $189 |
| Deco II | Ember only | 31¾" × 35½" | 41¼" × 44" black steel — $189 |
| Deco Alto | Ember only | 32¾" × 37⅜" | 41¼" × 44" black steel — $189 |
| Fox | Ember only | 31¼" × 38¾" | 41¼" × 44" black steel — $189 |
| Spark II | Ember only | 31¼" × 38¾" | 41¼" × 44" black steel — $189 |
| Escape 1200 | Ember only | 31¼" × 38¾" | 41¼" × 44" black steel — $189 |
| Escape 1500 | Ember only | 31⅞" × 36¼" | 41¼" × 44" black steel — $189 |
| Escape 1800 | Ember only | Offsets only — see below | 41¼" × 44" black steel — $189 * |
| Escape 2100 | Ember only | Offsets only — see below | 41¼" × 44" black steel — $189 * |
| Columbia II | Ember only | 31⅞" × 36¼" | 41¼" × 44" black steel — $189 |
| Blackcomb II | Ember only | 31⅞" × 36¼" | 41¼" × 44" black steel — $189 |
| Heritage | Ember only | 33½" × 36⅜" | 41¼" × 44" black steel — $189 |
| HT-3000 | Ember only | Offsets only — see below | 41¼" × 44" black steel — $189 * |
| Bistro cookstove | Ember only | 39⅞" × 38⅜" | 41¼" × 44" black steel — $189 |
| Chic-Choc cookstove | Manual does not state | 54⅝" × 43" | Modular system + extension |
Englander Blue Ridge wood stoves
Englander is built by the same manufacturer as Drolet, on the same platforms, and its manuals use an identical floor protection format — so the requirements read the same way.
| Stove | Protection needed | Minimum pad (W × D) | Smallest pad we sell that fits |
|---|---|---|---|
| Blue Ridge 100 | Ember only | 31¼" × 38¾" | 41¼" × 44" black steel — $189 |
| Blue Ridge 300L | Ember only | 31" × 37⅜" | 41¼" × 44" black steel — $189 |
| Blue Ridge 300P | Ember only | 31" × 37⅜" | 41¼" × 44" black steel — $189 |
| Blue Ridge 500 | Ember only | 32⅝" × 41" | 41¼" × 44" black steel — $189 |
* Our recommendation, not a figure printed in the manual. These three models publish the requirement as offsets rather than a finished size — see the note below — so measure your stove and confirm before ordering.
Stock note, September 2026: the 41¼" × 44" pad is temporarily on pre-order with the manufacturer and is due back at the end of September. If you need one sooner, two alternatives are in stock and clear every requirement in the tables above: the 46¾" × 54" black steel pad ($285), which is larger in both directions, or the 44" × 36" tinted tempered glass pad ($299), which covers everything except the two cookstoves and looks far less obtrusive on a finished floor.
Three things fall out of those tables.
The $189 pad covers everything except the Chic-Choc. Across all seventeen models the widest published requirement is the Bistro cookstove at 39⅞", and the deepest is the Blue Ridge 500 at 41". The 41¼" × 44" black steel pad clears both — though on those two the margin is an inch or so rather than the comfortable gap the smaller stoves leave, so measure carefully and do not assume you can shift the stove around on it afterwards. Unless you are going into a corner, that is your pad. People routinely spend two or three times this because nobody told them the small one was enough.
Three models state the requirement as offsets instead of a finished size. The Escape 1800, Escape 2100 and HT-3000 do not print an overall pad dimension. That is not an omission — we traced the Escape 1800 back through the 2012 revision of its manual and the floor protector table has always been written this way. For these models the spec is a distance measured out from the appliance: 16" from the door opening at the front, and 8" at each side. Behind the stove, the protected area only needs to reach as far as the stove's own rear clearance where that is less than 8".
So your pad size is the stove's own footprint plus those offsets. Measure the stove where it will actually sit, add 16" at the front and 8" per side, and buy to that figure. We have marked the 41¼" × 44" pad against these three because every other stove in both ranges lands inside it — but that is our judgement, not a Drolet number, so check it against your own measurement. Give us the model and your floor plan on 1-888-914-0022 and we will run it with you.
The Chic-Choc is the one genuine outlier. It needs 54⅝" of width, and the widest full-depth pad we stock is 54" — five-eighths of an inch short. The modular system with an extension panel is the way to cover it. Its manual is also the only one of the seventeen that omits the R-factor sentence entirely — it states neither "no R factor required" nor a minimum — so call us before ordering rather than assuming ember protection is sufficient.
For corner installs the manuals publish a second set of dimensions. The depth drops to roughly 25–29", but the diagonal across the front runs from about 51⅜" on the Deco II up to 58⅜" on the Bistro, and 70⅜" on the Chic-Choc. Our corner pads are 54" and 60", so the larger stoves need the 60" and the Chic-Choc needs a modular build. Give us the model and we will check the diagonal against the pad before you order.
Hearth pads for wood stoves
Our full range of full-depth pads, smallest to largest:
| Pad | Shape | Type | Price |
|---|---|---|---|
| 41¼" × 44" black steel | Rectangular | Ember | $189 |
| 46¾" × 54" black steel | Rectangular | Ember | $285 |
| 44" × 36" tinted tempered glass (10 mm) | Rectangular | Ember | $299 |
| 54" corner black steel | Corner | Ember | $349 |
| 54" × 46¾" modular system | Rectangular | Modular | $369 |
| 60" corner black steel | Corner | Ember | $389 |
| 54" × 46¾" tinted tempered glass (10 mm) | Rectangular | Ember | $399 |
| 44" × 36" clear tempered glass (10 mm) | Rectangular | Ember | $449 |
| 54" × 54" corner modular system | Corner | Modular | $489 |
| 60" corner modular system | Corner | Modular | $525 |
| 54" × 46¾" clear tempered glass (10 mm) | Rectangular | Ember | $869 |
Two things worth knowing about this table.
The modular systems are the ones to ask about if your manual specifies an R-value. They are built up rather than being a single steel sheet, and there is a modular extension panel ($135) if you need to add coverage. Call us with your stove model and we will confirm the rating meets what your manual requires before you order — this is exactly the situation where buying the wrong pad is expensive.
The glass pads are the option most people do not know exists. Same ember protection as steel, 10 mm tempered glass instead, and they disappear visually against a nice floor rather than sitting on it as a black rectangle. There are four, in two sizes and two tints. The 44" × 36" tinted at $299 is the one to look at first — it is barely more than the base steel pad, it covers every stove in our range except the two cookstoves, and it is the cheapest way to get the stove off a black rectangle. Step up to the 54" × 46¾" tinted ($399) if you want the larger footprint. The clear versions, at $449 and $869, show the floor beneath almost completely — the least intrusive floor protection made, and priced accordingly. If the stove is going in a finished living room, the glass is worth the look.
Hearth extension panels
Two products in the range are not stove pads at all, and buying one by mistake is an easy error to make. These are shallow glass panels meant to extend an existing non-combustible hearth further into the room — the usual fix when an insert's manual asks for more coverage in front of the door than the masonry hearth already provides.
| Panel | Depth | Width | Price |
|---|---|---|---|
| 18" × 50" tempered glass (10 mm) | 18" | 50" | $269 |
| 20" × 70" tempered glass (10 mm) | 20" | 70" | $549 |
Do not put a freestanding stove on either of these. Every stove in the tables above needs at least 35" of front-to-back coverage once the 16" front clearance is added, and these panels are 18" and 20" deep. They are for fireplace and insert installations where the hearth itself is already non-combustible and only the forward extension is short. Check the required extension distance in your appliance's manual — it is given as a distance forward of the opening, not as a finished panel size.
Hearth pads for ComfortBilt pellet stoves
ComfortBilt stoves use their own matched pads:
| Pad | Fits | Price |
|---|---|---|
| 36" standard | HP21, HP22, HP22N, HP50S, HP61 | $549 |
| 40" corner | All ComfortBilt stoves | $649 |
| Flatwall | ComfortBilt | $649 |
| Corner | ComfortBilt | $769 |
The cheaper way to buy one
If you are buying the stove and the pad together, the combos save real money:
- ComfortBilt HP22 + hearth pad — $2,699, saves $249
- ComfortBilt HP50S + hearth pad — $2,199, saves $249
Same parts, one order, matched sizing. There is no reason to buy them separately if you are buying both.
Common questions
What if the stove is going on a concrete floor? Then you may not need a pad at all. Drolet's manuals state that no floor protection is required where the appliance sits on a non-combustible floor such as concrete — which is why a slab-floored garage, shop or basement install often skips this cost entirely. Details in our garage and shop guide and basement guide. Confirm against your own model's manual before assuming.
Can I put a steel ember pad on carpet or a wood floor? No. These are rated for non-combustible flooring underneath. If your subfloor is wood or you have carpet, you need a thermal pad with an R-value regardless of what the stove requires, because the pad itself sits on a combustible surface. This is the most common and most dangerous mistake in this category.
Do hearth pads have an R-value? The steel and glass ember pads do not. R-value measures thermal resistance, and a thin sheet has essentially none. That is fine for stoves that only need ember protection. If you see an R-value listed, you are looking at a built-up thermal pad, which is a different product.
Does an insert need a hearth pad? Often not — many masonry hearths already extend far enough in front of the opening. Check your insert's manual for the required distance, and if it is short, a hearth extension panel is usually the fix rather than a full pad. Our wood insert guide covers it.
Can I build my own? You can, but the pad has to meet the manual's spec, and a homemade pad is exactly what an insurance adjuster looks at after a floor fire. If your manual calls for ember protection only and you have a non-combustible floor, a manufactured pad is inexpensive enough that it is rarely worth the risk.
Related guides
- Wood Stove Fans and Blowers
- Fresh Air Intake Kits: When You Need One
- Wood Stove Installation Guide
- How to Install a Pellet Stove
- Wood Stove for a Garage or Shop
- Wood Stove in a Basement
- Mobile Home Wood Stoves
- Which of our brands fits your house
Shop hearth pads for wood and pellet stoves at StoveSource — authorized dealer, No Sales Tax in any state, free shipping on qualifying orders. Give us your stove model and floor type on 1-888-914-0022 and we will tell you which pad your manual actually requires.