Timberline Wood Stoves: Models, Clearances and Replacements

Timberline Wood Stoves Inc. was formed in April 1977 by Calvin Cotton and Lonnie Preslar. Cotton was a fabricator who had been building Fisher stoves under license until Fisher revoked it — he'd been casting his own doors rather than buying Fisher's, which was how Fisher tracked royalties. So he started his own company and built the same idea bigger.

That lineage explains everything about a Timberline. Step top, welded plate steel, firebrick lined, cast doors, and an appetite for wood that people still talk about. The company only lasted a few years, but the stoves are still out there in numbers.

Quick disambiguation: this is not Napoleon's Timberwolf, which is a current brand, and it's not the later Timberline Inc. of Lafayette, Tennessee. If your stove has a step top and cast double doors with no glass, you're in the right place.

The model range

Timberline used two families. Single-door stoves carried a T prefix and were numbered by wood length. Double-door fire-viewing models carried a TF prefix and were sized by name.

Model	Type	Wood length	Rough class
T-18	Single door	18"	Small
T-24	Single door	24"	Medium
T-33	Single door	33"	Large
T-PF	Double door (Petite)	—	Small
T-SF	Double door (Small)	—	Medium
T-LF	Double door (Large)	—	Large

If yours is a double-door and you're trying to tell an SF from an LF, measure the width of the stove front visible between the door edge and the angle iron. The LF shows noticeably more.

Weight runs roughly 400 to 450 lb for the larger models. People often report 600-plus, which usually means they haven't pulled the firebrick and doors before guessing.

The clearance problem

Timberlines were never listed, so there's no manufacturer clearance chart to work from. That's not a small detail — it's the thing most likely to fail an inspection or an insurance review.

For an unlisted solid-fuel appliance, the governing document is NFPA 211. It sets substantial default clearances to combustibles, reducible to around 12 inches with proper heat shielding correctly installed with air gaps and standoffs. If you're running a Timberline against a wall today at a distance somebody eyeballed in 1982, get NFPA 211 out and check it.

Parts and value

No factory, no successor, no tooling. Parts are firebrick and gasket rope, both generic and both easy. Doors, hinges and latches are salvage-only.

Complicating things: several licensed fabricators built Timberlines, so cosmetic details and dimensions vary between stoves wearing the same model badge. Don't assume a part from one T-24 fits another.

On value: a clean, tight large Timberline sells for a few hundred dollars to someone who specifically wants one. A rough one is worth about what a wrecker charges to move 450 lb. There's genuine affection for these stoves and no collector premium.

The certification problem

Timberline predates the 1988 EPA standard entirely — no certification, no tested efficiency, no emissions figure. That usually doesn't matter while the stove sits where it's sat for four decades. It becomes an obstacle when you move it, sell the house, or your insurer asks about the solid-fuel appliance. Call your carrier and your building department before spending in either direction. See our EPA certification guide.

What replaces a Timberline

Supply is tight across the hearth industry this season, so every recommendation below shows its live shipping status, and where a first choice can't ship we name the closest alternative. Every stove ships with No Sales Tax in any state.

Replacing a T-33 or T-LF

A T-33 swallowed 33-inch wood. Nothing certified today comes close, and that's the honest trade — you will be cutting shorter.

The two Drolet stoves in that output class, the HT-3000 and Escape 2100, share the same 3.5 cu ft firebox and 110,000 BTU/h output (HT-3000 Ships in about 2 weeks, Escape 2100 No confirmed date).

• Freestanding: the Drolet HT-3000 ($1,899) covers up to 2,700 sq ft on 22" logs with up to 10-hour burns — the closest match to a T-33's output (Ships in about 2 weeks).
• You have a masonry fireplace: the Englander Blue Ridge 500-I ($2,219) has the same 3.5 cu ft firebox, 110,000 BTU/h and 2,700 sq ft coverage as the HT-3000, with a 144 CFM blower and faceplate included (No confirmed date).

The consolation: a T-33 needed all 33 inches because most of the energy went up the flue. You'll cut smaller wood and burn less of it.

Replacing a T-24 or T-SF

The mid stove and the one most people have. The Drolet Escape 1800 ($1,549) covers 500–2,100 sq ft, takes a 20" log, and is our best seller (Ships in 6–10 weeks). The USA-made Englander Blue Ridge 300L ($1,419, legs, No confirmed date) and 300P ($1,449, pedestal, Ships in 6–10 weeks) cover the same range for less. The Englander Blue Ridge 500 (No confirmed date) and Drolet Escape 1500 (No confirmed date) are the other models in this range.

Replacing a T-18 or T-PF

The Drolet Escape 1200 N ($1,129) covers 250–1,200 sq ft and takes 17" logs, the Spark II N ($1,049) is the cheapest way into the same class, and the Englander Blue Ridge 100 N ($1,099) is the Englander option (Escape 1200 N Ships in 6–10 weeks, Spark II N No confirmed date, Blue Ridge 100 N Ships in 1–3 days). All three are compared in our small wood stove guide.

The honest comparison

Timberlines earned their reputation. Heavy plate steel, firebrick, welded seams — forty-five years on and plenty are still tight. Nobody is claiming they were badly built.

What they never did was burn efficiently. A pre-secondary-combustion stove sends a large share of the fuel's energy up the chimney as unburned gas, which is precisely why the 1988 standard was written. A modern non-catalytic stove burns those gases in the firebox instead — measurably less wood across a season, and less creosote in the flue.

The adjustment: a Timberline would burn whatever you shoved in, badly. A secondary-burn stove needs properly seasoned wood and will disappoint you on wet fuel.

Before you swap

Larger Timberlines commonly vented at 8 inches; modern stoves use 6. Expect a new connector, and check the flue itself — an oversized masonry flue draws poorly on a modern stove and usually needs relining. See our chimney liner guide and stovepipe guide.

Clearances and floor protection come from the new stove's manual, never from where the Timberline sat. See the hearth pad guide and installation guide.

Bottom line

Keep it if it's tight, your clearances actually meet NFPA 211, and you have a supply of long wood you enjoy cutting. Replace it if you're tired of feeding a firebox that sends half the heat up the pipe — or if the clearance math doesn't work out.

HT-3000 or Blue Ridge 500-I for a T-33, Escape 1800 or Blue Ridge 300L for a T-24, Escape 1200 N for a T-18 — each shows its live shipping status above. No Sales Tax in any state and free shipping over $250. Shop wood stoves for sale or call 1-888-914-0022 with your model and square footage.

Replacing another vintage stove?

Same honest assessment for the other brands owners still run: Fisher and All Nighter (both Fisher-lineage like Timberline), plus Warm Morning, Atlanta Homesteader, Waterford, Nashua and Dutchwest and Federal Airtight.