Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Indoor-Safe Portable Radiant Heater

by Mr. Heater

• 4,000- to 9,000-BTU radiant heater for spaces up to 200 square feet
• Approved for indoor/outdoor use; clean-burning; nearly 100-percent efficient
• Auto shut-off if tipped over, if pilot light goes out, or if detects low oxygen levels
• Fold-down handle; swivel-out regulator; connects to propane tank (not included)
• Measures 9 by 14-1/5 by 14-2/5 inches; 1-year limited warranty

Product Details

• Product Dimensions: 9 x 14.2 x 14.4 inches ; 9.5 pounds
• Shipping Weight: 10 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B002G51BZU
• Item model number: F232000
• Average Customer Review: 4.5 out of 5 stars  See all reviews (226 customer reviews)
• Amazon Best Sellers Rank: #17,052 in Home & Kitchen (See Top 100 in Home & Kitchen)
  • #16 in Home & Kitchen > Heating, Cooling & Air Quality > Space Heaters

Product Description

The MH9B little buddy is a 4,000-9,000-BTU portable, indoor safe radiant heater. A single 4,000 heat setting delivers sufficient radiant heat for a space up to 200-square-feet. Safety features include a tip over switch that will shut the heater off if it gets knocked over and a low oxygen sensor that shuts the heater off when oxygen levels in the room get too low. The pilot design will also shut the heater off completely if the pilot light goes out. Heater uses a knob for ignition and a separate single button acts as a kill switch. Clean burning and nearly 100-percent efficient. CSA approved and factory tested with a one year warranty. Tank not included. (not intended for use in California. See item F232025).

Most Helpful Customer Reviews

79 of 79 people found the following review helpful

5.0 out of 5 stars Hurricane Sandy November 2, 2012

By Loyd N. Rawls

I bought two of these heaters a year ago for emergencies and they have been sitting in their box ever since. But, when hurricane Sandy knocked out power, they more than paid for themselves. I got them for winter storms and never thought I'd be using them in cold weather after a hurricane. They worked exactly as advertised. These are not whole house heaters. They are great room heaters and make life much more comfortable in an emergency. They have several safety features but I also have a carbon monoxide detector that I keep in the room with them. It's probably like wearing suspenders and a belt but it makes me more comfortable to have a detector as an extra safety precaution. In my emergency supplies I also have a camp stove and lantern. These all take the same one pound propane bottles. I keep a case of the gas bottles on hand. This gives me heat, light, and hot coffee in the morning. I don't like it when the electric goes out but I try to get into the camping trip mentality and make the most out of an uncomfortable situation. These heaters helped me do that and stay comfortable.

90 of 91 people found the following review helpful

4.0 out of 5 stars Fulltime RVers should consider this January 2, 2011

By Rob Rosenberger

If you fulltime in an RV, you know about cold days & nights. Maybe you want to warm the bedroom before showering, or maybe you want to warm your tootsies while watching DWTS. This "Portable Buddy" will do the trick for short bursts of heat.

I'm amazed to say the sides & bottom remained cool to the touch ("cool" as in room temp) after a full hour of use. Of note: it didn't heat a glass of cold water touching its side. Indeed, the LP can on the other side got cold enough to attract condensate! No gas smell during use.

It includes an oxygen sensor among its multiple failsafes -- but take care when using it in an RV bedroom. If you put it on a dresser, it could melt your ceiling. Also, your bedroom will heat up VERY quickly, so please don't leave it unattended.

Disposable LP cans cost a lot, but right now I only plan to use it for spot applications. In the future, though, I'll look at a refillable 4lb tank to make it cheap to operate.

64 of 68 people found the following review helpful

4.0 out of 5 stars Mr. Heater January 28, 2010

By J. Quarrels

I bought one of these from a local store. It works well and I got 4-5 hours of use from the 1 pound canister of propane. The only drawback is when I used it in my deer stand the wind kept blowing the pilot out thus the heater went out. If you can block the wind with a skirt around your stand it may help. I have used the heater in the house and it works fine and really does heat up the space even on low setting.

48 of 50 people found the following review helpful

5.0 out of 5 stars Awesome little heater April 1, 2011

By W. Bellant

Amazon Verified Purchase

I bought the heater for power outages and camping but I was surprised by how little odor it produces, even on the high setting. During the week I don't bother heating my whole condo, just the master bedroom, but it gets chilly in the kitchen when I'm making a quick meal or my lunch for work. In that situation the baseboard heaters are too slow. Long before they start to decrease the chill, I'm finished with what I'm doing. This little heater though is very quick. Moments after I start the heater it's noticeably warmer.
It's pretty cool (LOL, no pun intended). It's pretty cool when you buy something for emergencies and then find out that it's so useful that you use it every day. A happy surprise.

40 of 41 people found the following review helpful

5.0 out of 5 stars Just what I needed. February 15, 2011

By Roger Voelker

Amazon Verified Purchase

I have been using a portable heater for the Green House to keep things at 48 degrees when the temperatures go below that;however, the lowest heat raises the temperature to 66 at 40 degrees and the middle setting bring the temperature from 34 to 75 degrees. I needed something dependable and 4,000 BTU and 9,000 BTU might just heat my green house, 12 feet by 12 feet, and not caused any leaf yellowing or bloom drop.
It was the answer.
The Heater is well made, enamel and should not give me any rust problems. It is light in weight, about 2.5 lbs, and has a low oxygen alarm and will turn off if the stove turns over. I hook it up to a propane gas hose with a leak detector on the propane tank. Turning on the heater is a breeze. I move the dial from shut to pilot light, and push down the dial which gives a spark and the pilot lite goes on. I count to 30 and move the dial to the low setting. The ceramic plate turns to a faint pink glow and I wait a minute to make sure it does not go out. I get about 5 hours on a pound of propane. The temperature raises about 12.5 degrees and holds it there. If the outside temperature is 36 degrees, I will stay at 48 in the green house. If it gets to 34 or 35, I need to go to high, which raises the temperature about 15 degrees, to 49 degrees. The plants are happier. I bought a second such Heater in case we have a problem and the temperature goes into the 20 degree range. It has happened in the past but only rarely. I think two heaters can handle that, one on high and one on low. The prior heater used half a lb. of propane an hour so this heater is a money saver. I read that the heater does not get hot on the outside and it is true. This is a fantastic product....
I tried electric heaters in the past but the current drain was so great the fan would turn at a snails pace. I knew then that I had to use gas to get the heat I required.
As an after thought, you can tell how much propane you have in the 20 lb. tank. Take the propane tank, empty, in your hands and step on the scale and record the weight. Then weight yourself and subtract the difference and you have the weight of the tank.
Paint it on the tank, empty weight. It is hard to read the Total Weight on the tank as it is engraved on the tank and often difficult to see. When you get the tank filled, weight it as you stand on the scale, and after subtracting your weight, record the full weight of the tank with the gas and paint it on the tank. If you have no paint, buy a cheap nail polish and paint it on the tank. Where I live, the temperature has dropped around Midnight to 46 and gets to 42 around 4 a.m. and up to 48 by 10 a.m.. I just turn the heater on at Midnight and turn it off at 10 a.m. when the sun is heating the green house. I weight the tank and find I used two lbs. for 10 house. One tank should last me 10 days. With my other heater, I got 40 hours or 5 days, plants got too much heat and lost leaves and blooms. Read more ›

72 of 79 people found the following review helpful

5.0 out of 5 stars Mr. Heater heats. February 10, 2010

By G. Nippell

Amazon Verified Purchase

This is my second Mr. Heater product, I also have the smaller version. This is a significant improvement in both heat capacity and being "Indoor-Safe". It has proven very effective and reliable, and it makes living aboard my boat in the winter (Chesapeake Bay) quite comfortable. Especially this winter, '09-'10.