Click here and enter to win a Remington 870 Tac-14
Mr. Heater Big Buddy Heater Heats 400 sqft 18,000 BTU/hr Green/Red
Pictures may not represent the actual item described.
Zoom the image with the mouse

Mr. Heater Big Buddy Heater Heats 400 sqft 18,000 BTU/hr Green/Red

(No reviews yet) Write a Review
Out of Stock
Manufacturer Number:
Unit of Measure:

Related Products

Customers Also Viewed


BIG Buddy's Dual-Heating System (DHS) combines radiant heat comfort with convection heat airflow for maximum heating efficiency.
Multi-position heat settings of 4,000, 9,000 and 18,000 BTU/HR control comfort level. Built-in oxygen shutoff sensor and tip-over switch ensures indoor safe operation (adequate ventilation must be provided; see operating instructions).
Certified by CSA International (American Gas Association), Mr. Heater's Big Buddy Indoor Safe Portable Heater features a low oxygen safety shutoff pilot to provide safe, reliable propane heat indoors. (Note: Big Buddy is presently not available in Canada).
Special Features:
Built-In Thermal Protection Probe
Ergonomic Easy-Carry Handle
Low Oxygen Shutoff Pilot Safety System For Indoor & Outdoor Use
Blower Fan Power On/Off Switch
Uses optional A/C Adapter Or 4 D-Cell Batteries To Power Blower Fan
Large 4-Position Heat Level Control Knob With Built-In Piezo Starter
Integrated Hot Air Blower Venting System
Attached Swing-Open Doors with Swivel-Out Mount For Easy Cylinder Installation
Porcelain Coated Reflector For Extended Life
Dual Ceramic Burner Tiles With Shock Absorbing Floating Insulation
High-Temperature Coated Safety Wire Guard
Non-Skid Surface Pads For Extra Stability
Key Shaped Rear Mounting Holes For Wall Mounting
Built-In Tip Over Shutoff Switch
Quick-Disconnect Hose Connection With 2-Way Positive Shutoff For Extended Stay With Regulated RV Systems (use optional RV hose assembly F271802)
CSA Certified For Indoor & Outdoor Use
Big Buddy Digital Press Kit
Temporary Heat For:
Garages/Storage Buildings
Picnics/Tailgate Parties
Sporting Events
Hunting Blinds
Ice Fishing Shanties Truck & Horse Trailers
Emergency Heat
Not designed for permanent installation or for use above 7,000 feet.
When using a 20 lb. propane tank, place cylinder outdoors. Never bring a 20 lb. cylinder indoors.
Model No. MH18B
4,000/9,000/18,000 BTU/Hr.
Gas: Propane
Operating Position: Vertical
Valve Position: Pilot, Lo, Med. & Hi
Heating Time:
One 1lb. Cylinder: 1.5 to 6 hour
Two 1lb. Cylinders: 3 to 12 hours
One 20lb. Cylinder: 25 to 110 hours
Two 20lb. Cylinders: 50 to 220hours
Overall dimensions: 17"L X 10"W X 17.5"H

0 Reviews

This product hasn't received any reviews yet. Be the first to review this product!
Write a Review

Shipping & Returns

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.