Schaefer · Wall-mount fan · Giant airflow

Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted

Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted
  • Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted, view 2
  • Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted, view 3
  • Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted, view 4
  • Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted, view 5
  • Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted, view 6
  • 13,140 CFMon high
  • 36-inchhead
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Is 13,140 CFM enough for my room?Compare this fan

Specs cited from Amazon listing ↗Photos: Amazon listing ↗ · refreshed Oct 31, 2026

The Schaefer 36DF is a 36-inch, single-phase direct-flow circulation fan built for barns and agricultural buildings. Its listing claims 13,140 CFM of free air from a 1/2 HP motor, the highest airflow claim of any wall-mount fan here, and it ships with a T-shaped mount.

What works

  • 13,140 CFM on high from a 36-inch head
  • T-shaped mount (VS36FMT) included for wall or ceiling mounting

What doesn't

  • One speed only

Who it's for

Good fit

  • Barns and agricultural buildings that need long-throw circulation
  • Large bays where one fixed 36-inch fan replaces several smaller ones
  • Buyers who want a US-made fan with galvanized steel blades, per the listing

Look elsewhere if

  • Plug-and-play use: the listing says no cord is included
  • Buyers who need several speeds; it is single-speed
  • Buyers who need manufacturer-verified airflow, watts or noise

A good fit for your job? Check the current price and delivery.

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Why it stands out

The 36DF is a farm-duty circulation fan, and its listing makes the biggest wall-mount airflow claim in the catalog: 13,140 CFM of free air from a 36-inch, three-blade galvanized steel propeller on a 1/2 HP single-phase motor running up to 825 RPM. That kind of throw moves air down a barn alley or across a large bay that would otherwise need two or three smaller fans.

The build matches the setting. The listing describes galvanized steel blades, a powder-coated white steel guard, a UL/CSA-certified motor and US manufacture. It also includes a T-shaped mount (VS36FMT) for hanging it from walls or ceiling structure.

What to know before you buy

  • Power: the listing says the cord is not included and the fan requires 115/230 volts. Plan for an electrician to wire it, and hang its 65 lbs from solid structure with rated hardware.
  • Speed: single-speed only. If you need to turn the air down, you will need a separate control or a different fan.
  • Space: the listing gives 40 inches long by 10 inches high. Leave clearance around the guard.
  • Noise: no sound rating is published.

How it compares

  • Patterson H30A: a 30-inch, 1 HP yoke-mount fan that Patterson rates at 12,000 CFM, with a 12-foot cord for 115V use. It is the manufacturer-documented high-airflow alternative.
  • Air King 9070: a 30-inch, 3-speed wall fan with Air King's full table: 8,780 CFM, 308 W, 72 dBA on high and a 10-foot 120 V cord. It has less air, but it plugs in and turns down.
  • Schaefer GVK36-3: another US-made 36-inch Schaefer wall circulator for industrial use, though its listing publishes no airflow figure.

Bottom line

The 36DF is a serious barn and agricultural fan with the biggest claimed wall-mount airflow here. Wire it in, mount it to structure, and it will cover a lot of floor. Pick the Air King 9070 if you need plug-in simplicity.

Verdict

Buy the 36DF if you need big, fixed circulation in a barn or agricultural building and can have it wired and mounted properly. Skip it if you want a plug-in fan or speed control; the Air King 9070 is a documented 3-speed, 120 V alternative at 8,780 CFM.

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Questions people ask

How much air does the Schaefer 36DF move?
The listing claims 13,140 CFM of free air.
Does the Schaefer 36DF come with a cord?
No. The listing says the cord is not included and the fan requires 115/230 volts.
How is it mounted?
The listing says a T-shaped ceiling mount (VS36FMT) is included, and the title describes it as wall-mounted.
How heavy is it?
The listing gives 65 lbs and dimensions of 40 inches long by 10 inches high.

Before you buy

Installation and buying checks

Use these questions to verify the exact configuration. Linked facts are cited; unlisted details stay questions.

  1. Mounting and support

    What mounting method and hardware does the exact unit require?

  2. Clearance and handling

    Do the listed physical details leave enough clearance for installation, adjustment, and service?

  3. Electrical match

    What voltage and connection requirements does the exact unit specify?

  4. Airflow at the job

    Is the listed airflow rated at an operating point that matches the job after placement, obstructions, and system resistance are considered?

  5. Location requirements

    Does the site require an environmental rating or guard? Neither is listed here.

Put 13,140 CFM in context

The Schaefer 36DF Single Phase Direct Flow Agriculture 36” Wall Mounted has a listed airflow of 13,140 cubic feet per minute. The table compares this rated volume with example room volumes. It does not measure fresh-air exchange, air speed at your body, or room coverage.

RoomSizeNominal room volumes / hourNominal pass interval
One-car garage22 × 12 × 9 ft · 2,376 ft³332×11 s
Two-car garage22 × 20 × 9 ft · 3,960 ft³199×18 s
Workshop40 × 30 × 12 ft · 14,400 ft³55×1.1 min
Warehouse bay100 × 50 × 16 ft · 80,000 ft³9.9×6.1 min

A circulation fan does not by itself replace indoor air. Exhaust airflow depends on a makeup-air path and system resistance. Use installed outdoor airflow for ventilation calculations.

Formula: airflow × 60 ÷ room volume. CDC explains the ventilation form of this equation; here the input is a catalog rating, so the result is a volume comparison.

Work it out for your own room →

Listing details

What we know about this listing

Listing data was imported on October 31, 2026. Each specification can have a different source-check date; the evidence below is the most precise source information available here.

Sources for 2 listed specifications

Photos illustrate the listed model. Confirm the current variant, included hardware, and finish with the seller before purchase.

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