A propane forge decides how fast a beginner gets past watching videos and actually starts moving hot steel. This rating collects propane forges for blacksmithing that are genuinely on sale in the US right now, from stainless kits under $200 to American made units that outlast their first owner. Knife makers, farriers, hobby smiths working out of a garage: the shopping logic is different for each, so the list mixes small single burner chambers with long double and triple burner bodies.
Selection went by things that matter at the anvil, not by marketing copy. Chamber size and door layout first, because a 2.5 inch round chamber will never take a horseshoe and a 19 inch body burns gas you may not need. Then insulation, ceramic wool with rigidizer versus insulating firebrick, rated temperature and whether the unit realistically forge welds. After that: burner count and independent valves, steel gauge, what comes in the box (regulator, hose, firebrick, refractory coating), propane consumption and price per inch of usable chamber.
Positions here move by community votes, not by editorial mood. Read the cards side by side: the pros tell you what the forge does well, the cons list the parts people replace or coat themselves, and the reviews under each card usually say how the thing behaves after the second winter.
Hell's Forge MAX is the big one in the American made Hell's Forge line: a double burner unit with a 6 x 4.75 x 19 inch interior, enough length to swing a full tang blade or a pair of tongs blanks through. The body is heavy gauge steel, the interior carries a 1 inch high density ceramic blanket, and two full size 9 x 4.5 x 1.25 inch firebricks sit on the floor. A 0 to 30 PSI regulator and hose come in the box, along with a container of Hellcoat 3000 refractory that the buyer brushes on before first fire.
Rated around 2300F, so forge welding is realistic but demands good tuning and closed doors. Suits smiths who already know they will forge longer stock and Damascus billets; overkill for someone making bottle openers once a month, since two burners drink propane. Assembly is simple, but plan an evening for coating and curing before the first heat.
The NC Tool Whisper Momma is the forge farriers keep buying year after year, built in Pleasant Garden, North Carolina. Two atmospheric burners with push button ignition bring the 3 x 12 x 6 inch firebox to welding heat in about three minutes, with a rated 2350F and no blower needed. Insulated doors keep wind out of the chamber and a rear bar stock door lets long pieces pass through. Factory price sits near $857, with the open end port version closer to $940 through dealers.
Built for repetitive work: shoe after shoe, or tool steel that needs the same heat all day. The chamber is shallow for thick stock, and the unit is heavier and pricier than an imported kit, so hobbyists forging once a month rarely need it. Parts are available separately, which is why twenty year old Mommas still run.
NC Tool's Knifemaker forge takes the same burner technology as the farrier models and stretches it into a blade shaped chamber: 4 inches high, 4.5 wide and 13.5 long, with insulated doors on both ends and a 2 x 3 inch exhaust port on one of them. Rated 2350F, it runs off a standard 20 lb propane tank and can be configured for natural gas. Ship weight is about 48 lb, regulator and hose included, and dealers list it around the $900 mark.
The pass through layout is the point: Damascus billets and long blades go in from either end, heat stays even along the length, and heat treating soak times are easier to hold. Not the cheapest way into forging and not compact, so a small balcony or a shared garage corner is the wrong home for it. For someone forging blades weekly, the per year cost looks very different.
Majestic Forge builds gas forges in the USA and is known to television viewers from Forged in Fire. The 2 Burner Knife Maker Deluxe is its entry model at $450 direct: forge box 13.75 inches long, 9 wide and 7.5 high, interior chamber 13.5 x 6 x 4.5 inches with 5 x 3 inch openings at both ends. Each burner has its own brass needle valve and orifice, so one burner can run alone for small work, and the orifices adjust for altitude and humidity.
Independent valves make this forge forgiving for anyone learning heat control, and the open ends handle long bar stock. The flip side is an open ended chamber that loses heat unless doors or bricks are added, and the unit ships as a solid steel box, not a featherweight. Buying through eBay means dealing with the maker's own store, with build times depending on the queue.
Diamondback Ironworks has been supplying commercial grade forges since 2004, and the 2 Burner Billet Master is its heavy use production model. Everything bolts together, so a burner, shell panel or liner can be swapped instead of scrapping the forge. Interior runs 13.5 x 6 x 4.5 inches, the assembled unit measures roughly 18.5 inches wide, one end carries a fixed 2.5 x 5.5 inch opening and the other a 6 x 4.5 inch door.
The wide, low chamber is aimed at Damascus billets and axe work rather than delicate jewelry heats. Modular construction is the real argument: liners are consumable, and here replacement is a wrench job. Price sits well above imported kits, lead times depend on the shop's backlog, and the forge is heavy enough that it wants a permanent stand rather than a tailgate.
The Atlas Mini Forge is hand built in Iowa by Atlas Knife and Tool, with a stainless shell and a chamber just 2.5 inches across and 11 inches deep, plus a 2 inch rear pass through. Small volume plus insulating firebrick, not ceramic wool, means more than 600 BTU per cubic inch from a single 30,000 BTU burner and temperatures in the 2350F range. A 0 to 20 PSI regulator with hose and a sliding tool rest are included, and propane use works out near a dollar an hour.
Bladesmiths are the target audience: knife billets, small Damascus, quick heats without waiting for a big body to soak. The narrow round chamber rules out horseshoes, thick scrollwork and anything wide, and the firebrick liner chips if tongs are dragged across it. For a garage with limited space and a propane bill that matters, the size is the feature.
Devil-Forge builds gas forges in Lithuania and ships US ready units with a POL CGA-510 fitting. The DFPROF2+1D carries two DFP burners with a combined 160,000 BTU, usable one at a time, a gas ball valve, an air choke on each burner and one door. Interior measures roughly 5.6 x 5.6 x 16 inches, the rating is 2500F, and the chamber is lined with ceramic wool over a firebrick floor. Amazon also lists a 2 inch double insulation version of the same model for lower fuel burn.
The air chokes matter: tuning a slightly rich flame for forge welding is possible without new burner parts. Downsides are familiar to importers, wool liners that need rigidizer and coating, hardware in metric, and support that runs through email across time zones. For the chamber volume, no US made forge comes close on price.
Simond Store's triple burner is the large capacity option in a range that also covers single and double burner forges. The stainless rectangular body is rated 2600F, three burners give an even heat along a long chamber, and doors on one or both ends let bar stock pass through. The kit arrives with burners, hose, valve and regulator, so the only extra purchase is a 20 lb propane tank and a stand.
Three burners pay off when heating long sections, twisted railings or several pieces at once; for a single small knife they simply burn gas. The liner is ceramic wool, so a coat of rigidizer before the first heat is strongly advised, and the thin outer shell discolors quickly. Prices sit in the mid hundreds, far below American made units of similar length, which is exactly why the forge shows up in so many beginner shops.
VEVOR's two burner propane forge is the budget default: 2600F rating, stainless shell, ceramic fiber lining around 30 mm thick and a complete kit in the box with hose, regulator, stand, firebrick, gloves and tongs. Depending on the version the chamber is oval or square, with the larger square body measuring close to 11.9 x 7.1 x 21.7 inches. It is sold on Amazon and Walmart at a price most smiths spend on a decent pair of tongs.
Good first forge for someone testing whether the craft sticks: it lights easily, reaches working heat in minutes and handles knives, hooks and small tools. Quality control is uneven, burner alignment and door fit vary between units, and the wool liner needs rigidizer to be safe and to survive. Treat it as a consumable that can be relined, not as a lifetime tool.
The Hell's Forge Portable Double Burner is the company's mid size unit, and the oval chamber is its signature: 19 inches long, 6.75 wide and 3.5 high, shaped so the work sits in the flame's hottest zone. Two burners, 1 inch coated ceramic blanket, two thick firebricks on the floor and a Hellcoat 3000 refractory container that the owner applies. Everything is made in the USA and the unit still fits in a car trunk for a demo day.
Knife makers and farriers get plenty of length here without the bulk of the MAX. The low 3.5 inch ceiling is the limit: thick billets, bowls and heavy scrollwork will not fit, and the shallow oval means tall work is awkward. Users should budget an evening for coating and curing, and ignore the marketing temperature figure until the doors are closed and the pressure is dialled in.