• Lanair Waste Oil Fired Heaters

    MX Series (Standard)

    • 150,000 BTU
    • 200,000 BTU
    • 250,000 BTU
    • 300,000 BTU

  • Lanair Ductable Waste Oil Heaters

    MX Series (Standard)

    • 200,000 BTU
    • 300,000 BTU

  • Lanair Waste Oil Fired Boiler Systems

    MXB Series Boilers

    • 250,000 BTU
    • 400,000 BTU

  • Lanair Parts and Service Division

    For Free Service Call

    1-888-370-6531
    Lanair provides free lifetime phone support to all of our customers. If you need a part and aren't sure what it is, give us a call and a service tech will gladly assist you.
Call Now For Daily Specials!
1-800-753-1601
MXD-300
Waste Oil Heater

Not only do we save you money purchasing factory direct, but we also save you more money by packaging our heaters together with the tank and chimney. We offer solutions that meet the needs of almost any company. Whether you need the chimney to go through the roof or through the wall we have a package for you. Our Packages have a very small footprint allowing you to maximize the space in your shop or garage. Installation is a snap with our packages, and install time is minimized with our self-contained design.

Click the Package Tabs to the upper left to view the available packages and choose the one that's the right fit for your needs!

Not only do we save you money purchasing factory direct, but we also save you more money by packaging our heaters together with the tank and chimney. We offer solutions that meet the needs of almost any company. Whether you need the chimney to go through the roof or through the wall we have a package for you. Our Packages have a very small footprint allowing you to maximize the space in your shop or garage. Installation is a snap with our packages, and install time is minimized with our self-contained design.

Click the Package Tabs to the upper left to view the available packages and choose the one that's the right fit for your needs!

Value Package A
80 gallon tank/ thru roof 8" chimney kit

Chimney Kit Includes:(16' eave)

  • 1 chimney cap
  • 1 24" Class A chimney pipe
  • 1 storm collar
  • 1 roof flashing 0/12-6/12
  • 1 36" Class A chimney pipe
  • 1 finishing collar
  • 1 14" slip connector
  • 4 24" black pipe
  • 1 black tee pipe w/cap
  • 1 roof support bracket
  • 1 90° elbow (MX 250/300 only)

Value Package B
80 gallon tank/ thru wall 8" chimney kit

Chimney Kit Includes:(16' eave)

  • 3 36" Class A chimney pipe
  • 1 adjustable wall strap
  • 1 Class A tee with cap
  • 1 6" Class A chimney pipe
  • 1 tee support bracket
  • 1 wall thimble
  • 1 18" Class A chimney pipe
  • 2 24" black pipe
  • 1 finishing collar
  • 1 14" slip connector
  • 1 90° elbow (MX 250/300 only)

Value Package C
215 gallon tank/thru roof 8" chimney kit

Chimney Kit Includes:(16' eave)

  • 1 chimney cap
  • 1 24" Class A chimney pipe
  • 1 storm collar
  • 1 roof flashing 0/12-6/12
  • 1 36" Class A chimney pipe
  • 1 finishing collar
  • 1 14" slip connector
  • 4 24" black pipe
  • 1 black tee pipe w/cap
  • 1 roof support bracket
  • 1 90° elbow (MX 250/300 only)

Value Package D
215 gallon tank/thru wall 8" chimney kit

Chimney Kit Includes:(16' eave)

  • 1 chimney cap
  • 3 36"Class A chimney pipe
  • 1 adjustable wall strap
  • 1 Class A tee with cap
  • 1 6" Class A chimney pipe
  • 1 tee support bracket
  • 1 18" Class A chimney pipe
  • 1 finishing collar
  • 1 14" slip connector
  • 2 24" black pipe
  • 1 90° elbow (MX 250/300 only)

Product Summary

The MX Series heaters by Lanair are our most advanced units to date. We combine the latest burner technology with the latest lean manufacturing efficiencies to produce a quality, reliable heater at the lowest price in the industry. Factor in unstable fuel prices and escalating disposal costs and you'll see that purchasing a Lanair MX Series Heater is indeed... "The Right Choice at the Right Time!"


The MXD-300 Waste Oil Heater is the ductable version of the MX-300 pushing out up to 300,000 BTU's an hour. It features a fine grained galvanized (rust-resistant) cabinet to protect it in most shop environments, a high performance MX series burner that burns more efficient than any other burners to date, an internal squirrel cage blower to reduce excess noise in your shop, adjustable locking louvers to direct air flow or remove louvers to attach duct. The unit can be exhausted out the top, back, right, or left. All our units are UL listed so you can be assured that safety is a high priority with all Lanair products.

Technical Specifications:
Specifications: MXD-300
Heat Range (BTUH)* to 300,000
Fuel Input (GPH) 2.08
Heating Area (sq. ft)** to 10,000
Power Supply (AC) 120 V.6OHz 20 Amp
Cabinet Dimensions (H-W-D) 36"x46"x54"
Hanging weight (lbs.) 650
Blower (CFM) 1696
Chimney Pipe*** 8" Class "A"
Compressed Air**** 2 CFM - 15 PSI
Combustion Chamber 10 Gauge CRS
Ductable Option Yes
Chimney Location Top
  • *   BTUH value varies with fuel type
  • ** The suggested heating area is based on building with minimal
         heat loss due to open door, construction, materials, windows,
         insulation, etc...
  • *** Chimney package is optional
  • ****Customer supplied. Source must be capable of producing 2.0 CFM @ 60 PSI.