Skip to content
PRICE DEMOLITION SALE: Hundreds of Job-Crushing Deals. Shop Now >
Northern Tool Equipment Logo TextNorthern Tool Equipment Logo text link to Home.

Free Gift Card on All Orders Over $100 See Details

Extended - Last Chance!

Free Gift Card Details

$100 Order

$10
gift card

$250 Order

$25
gift card

$500 Order

$50
gift card

$1000 Order

$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 11/01/26.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.

Free Gift Card Details

$100 Order

$10
gift card

$250 Order

$25
gift card

$500 Order

$50
gift card

$1000 Order

$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 11/01/26.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.
Print

Mr. Heater Big Maxx Natural Gas High-Output Commercial Unit Heater, 200,000 BTU, Model# MHU200

Item# 103064
NewOn Sale
Mr. Heater Big Maxx Natural Gas High-Output Commercial Unit Heater, 200,000 BTU, Model# MHU200

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Mr. Heater Big Maxx Natural Gas High-Output Commercial Unit Heater, 200,000 BTU, Model# MHU200

Click or Tap image to Zoom

$1699.99

Choose Options for complete product description, reviews and purchasing.

Heat Output

  • Shipping: 

    Available now

    Heavy/large item. Lift gate service available.

  • Store Pickup: 

    Out of stock at Fredericksburg VA

  • Requires only 1in. clearance from ceiling with threaded rods (sold separately)
  • Spark Ignition with self diagnostic control module
  • Designed for right or left side piping, electrical and flue connections by simply rotating 180°
  • Aluminum tubular heat exchanger for maximum efficiency and longer life
  • Ships as Natural Gas unit

See full description

  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Accessories

  • Warranty

  • Compare

Product Summary

This Mr. Heater Big Maxx™ Natural Gas High-Output Commercial Unit Heater is quiet and vented for easily heating a large 6700 sq. ft. building. The low-profile design requires only 1in. clearance from the ceiling and delivers 200,000 BTU output. Ships as natural gas unit. Easily installs using 3/8-16 threaded rods (sold separately). CSA certified. Works with Thermostat Item# 173641 (sold separately).

What's Included

    (1) Natural gas high-output commercial unit heater

Downloads

Product Manual

Key Specs

AttributeSpecification

item#

103064

Brand

Mr. Heater

Manufacturer's Warranty

3 year limited warranty

Ship Weight

190.0 LB

Heat Output

200,000 Btu/hour

Heat Type

Forced Air

Heating Capability

6,700 ft²

Needs Direct Venting

Yes

Blower Included

Yes

Blower CFM

3,377 cfm

Amps

7
AttributeSpecification

Thermostat Included

No

Remote Included

No

Phase

Single-phase

Volts

120

Watts

805

Oxygen Depletion Sensor

No

Fuel Consumption

2.2 GPH

Hardwired

Yes

Product Weight

168.0000 lb

Dimensions L x W x H (in.)

34.6 x 40.4 x 25.8 in

Reviews

Questions & Answers

23 Reviews This action will navigate to reviews.

Questions

1–10 of 24 Questions  
Sort by:

  1. Does the 200,000 come with hookups for Lp

    1. This unit does not include the LP conversion kit. The conversion kit is item #5261111, model F163071.

      Helpful?

    2. This unit does not come with the conversion kit to switch to LP!

      Helpful?

  2. How loud is this heater? For instance, can you easily talk on a phone with it going?

    1. The manufacturer does not test for noise levels. The blower produces approximately the same amount of noise as a standard box fan.

      Helpful?

    2. The manufacturer does not test for noise levels; however, the blower produces approximately the same amount of noise as a standard box fan.

      Helpful?

  3. What is the measurement from the top edge of the unit down to the center of the exhaust vent?

    1 answer

    1. The distance from the top of the heater to the center of the exhaust will be 16.8 inches.

      Helpful?

  4. What is the dimensions of the heater

    1 answer

    1. The dimensions for this heater are 41.3" L x 28.7" W x 24.8" H.

      Helpful?

  5. Can you just go thru wall for vent to outside or do you have to go up?

    1 answer

    1. The heater can be vented through the wall. It is designed to be vented both vertically and horizontally.

      Helpful?

  6. Can i put this heater on a sturdy shelf, or do i have to hang it?

    1 answer

    1. This unit is designed to be hung. It requires no less than an 8 ft. clearance from the floor to the bottom of the heater.

      Helpful?

  7. is there a minimum distance required from floor to bottom of the heater. our space is only 8 ft tall. so, there would only be about 5 ft 6 inches of space between the floor (cement) and bottom of heater.

    1 answer

    1. According to the manual, this heater must not be installed less than 8 ft. above the floor from the bottom of the heater.

      Helpful?

  8. Can you instal this by setting on a platform or does it have to be hung from top of unit? 

    1 answer

    1. This heater requires 6" of clearance from the top and bottom of the unit. This should be hung for proper installation.

      Helpful?

  9. Is this heater made for corrosive environments like a greenhouse?

    1 answer

    1. High humidity or salt water atmospheres will accelerate heater corrosion and reduce the useful life of the heater. Do not install the heater in locations where water (in the form of rain, drips or spray) could fall onto the gas ignition components.

      Helpful?

  10. Does this heater come with a means of hanging it

    1 answer

    1. This heater requires 3/8"-16 threaded bolts for mounting. The bolts are not included.

      Helpful?

Accessories We Recommend

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.

See All Thermostats
Thermostat For Mr. Heater Garage Heaters
3.5 out of 5 stars. 91 reviews

Thermostat For Mr. Heater Garage Heaters

Item # 173641

$24.99
See All Venting
DuraVent Vent Unit Heater Kit, 4in. Horizontal, Model# 4UHK-KVNT
4.4 out of 5 stars. 39 reviews

DuraVent Vent Unit Heater Kit, 4in. Horizontal, Model# 4UHK-KVNT

Item # 29794

$429.99
See All Venting
DuraVent Vent Unit Heater Kit, 4in. Vertical, Model# 4GVKNT
4.5 out of 5 stars. 31 reviews

DuraVent Vent Unit Heater Kit, 4in. Vertical, Model# 4GVKNT

Item # 28795

$279.99

Warranty

Manufacturer's Warranty

3 year limited warranty

Recently Viewed Items

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.

Mr. Heater Big Maxx Natural Gas High-Output Commercial Unit Heater, 200,000 BTU, Model# MHU200
4.3 out of 5 stars. 23 reviews

Mr. Heater Big Maxx Natural Gas High-Output Commercial Unit Heater, 200,000 BTU, Model# MHU200

Item # 103064

$1699.99