Corsair Evaporator with Flat Pan
360 Corsair Evaporator with Flat Pan Stainless Steel Ball Valve and 3" Dial Thermometer on a Premium Flat Pan It's easy to add a blower to the Corsair Arch Corsair with Optional Forced Air Kit Standard Grates in a Corsair Arch

2′ × 3′ Corsair Evaporator w/Flat Pan

(1 customer review)

From: $2,103.93

NOTICE: Due to extreme popularity/demand, ALL Corsair models are experiencing extending lead times at this time. Mid-summer orders are on track for late fall or early winter delivery. The best/quickest way to get your order in the system is to place the order here online. Thank you for your patience. We guarantee this product is worth the wait!

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Discounts for Local PickupDISCOUNTS AVAILABLE for local pick up.
See our discounts list or contact us for details.

This evaporator is rated for 5 – 50 taps.
Estimated evaporation rate is 9 – 12+ gallons per hour.
It will take 7.5 gallons of sap to fill the pan 2″ deep.


Premium Stainless Steel Flat Pan

  • 22 gauge, mirror finish stainless steel
  • TIG welded (NEVER Soldered)
  • Limited lifetime guarantee against leaks
  • Full length handles
  • One 3/4″ stainless steel, draw-off valve
  • One 3″ dial syrup thermometer
  • Instruction guide for using a Flat Evaporator Pan
  • Right-side draw-off unless requested otherwise

Corsair Arch

  • Strong, reliable steel frame
  • Large air-tight loading door
  • Large combustion chamber
  • Both natural draft and forced draft options available
    • Natural Draft option includes a perforated knock out and mounting studs so you can easily upgrade at a later date if desired
    • Forced Draft option comes with a pre-mounted Forced Air Kit and Domed Cast Iron Grates

Base Stack and Stack Pipe

  • Galvanized Steel unless upgraded to Stainless Steel (longer life expectancy)
  • The total length of the Stack Pipe is always double the length of the arch. Maximum = 12 feet.

Rope Gasket

  • Gasket for underneath pan
  • Gasket for behind the pan


    Categories: ,


    Flat and Furious.

    Premium Flat Pans by Smoky Lake are crafted with 22 gauge, mirror finish stainless steel — which has superior heat transfer compared to our competitors’ thicker gauges. They come standard with a thermometer port, draw-off port and stainless steel Ball Valve. They also feature full length, built-in handles. We confidently back every pan with a lifetime limited warranty on all TIG welds. Every pan is American made at our headquarters in Hilbert, Wisconsin.

    Every Flat Pan comes standard with our Level Assist feature. This feature marks the recommended starting sap depth of 2″ in your pan. It will also make it easy to see whether or not your pan is sitting level.

    Corsair Arch

    This revolutionary evaporator design is fully convertible from conventional draft to forced draft in an instant. The airtight front gives you a critical advantage in efficiency and performance whether you’re running the forced air kit or if you choose to keep things simple with natural aspiration. 

    The large loading door nicely compliments the large combustion chamber. This air-tight door will help prevent cold air from being pulled along the bottom of pan, negatively effecting evaporation rate and efficiency. 

    The Corsair arch is fully steel framed. The entire perimeter is built as strong as possible, giving you confidence when filling the pans above it with your precious liquid and igniting an intense fire inside it. Additionally, the arch fits the geometry of whatever pan set you plan to use on it, forcing the pan to take full advantage of the heat created within. 

    Insulating the Arch

    See our Brick and Insulation Kit page for details regarding the sizes/quantities of bricks required for each size evaporator.

    Please note: The Corsair air-tight firebox door will come pre-insulated for you. The ceramic blanket, firebrick and mortar which required to insulate/protect the remainder of the arch is sold separately.

    Forced Draft Kit Option

    Forced Draft Kit includes domed gratesBENEFITS:

    • Much higher evaporation rate compared to natural draft.
    • Easier to burn larger/unseasoned wood. This means you won’t have to cut your firewood as fine and you can burn wood that is less perfect.
    • Increased agility. You will be able to shut down your evaporator much faster because it allows firewood to burn quicker and more completely.


    The forced draft option includes upgraded domed cast iron grates and an electric blower. If ordered at this time, the blower will come pre-mounted to the arch. Otherwise, if you order the arch as conventional draft, the back of the Corsair firebox will include a perforated knock out and mounting studs to accommodate a forced air kit in the future. If the time comes when you need more performance, just remove the knock out, mount the blower and replace the steel grates with the kit’s new perforated, domed cast iron grates.

    Additional information

    Pan Size

    2' x 3'

    1 review for 2′ × 3′ Corsair Evaporator w/Flat Pan

    1. Tim Henning

      The arch is engineered and designed very well. The fire box has a large door for easy loading. The fire door seals very well with no smoke leaking out from anywhere except the smokestack where it should exit. The damper / ash clean out door seals very well for fire and heat regulation. I am using a Badgerland flat pan that came with the arch that works well with the arch. I am very impressed. I also added a 8 inch damper in the smoke stack for heat regulation. I would recommend buying this arch. 5 *****

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