Buddy heater Black Friday sale shopping is a size decision. The three heaters on this page are Mr. Heater’s Buddy line, and they are not the same output. The budget heater is the Little Buddy, model F215100 / MH4B, a single 3,800 BTU setting, one 1 lb propane cylinder, coverage stated as 95 square feet, with tip-over and low-oxygen shutoff. The overall heater is the Portable Buddy, model MH9BX / F232000, listed at 4,000 to 9,000 BTU, with a product table that also shows 9,000 BTU and 225 square feet. The fetched listing for that model did not show a featured offer, so this page names the heater and does not claim a seller, a stock status, or a condition beyond the model itself. The premium heater is the Big Buddy, model MH18B / F274805, with 4,000, 9,000, or 18,000 BTU, about 450 square feet, three settings, and a connection for two 1 lb cylinders or a 20 lb tank with the required accessories, plus ODS and tip-over shutoff.
Heat output and coverage are the reasons to pick one. A 95-square-foot heater does not become a 450-square-foot heater because both are red and both say Buddy. Read the model number. Then read the manufacturer’s instructions for where that model is allowed to run. These are propane radiant heaters. Ventilation, clearances, and indoor or outdoor limits are in the manual for each model, and a sale does not rewrite them.
Best Budget: Mr. Heater Little Buddy
The Little Buddy is the budget pick because it is the smallest feature set. One output, 3,800 BTU. One fuel connection, a single 1 lb propane cylinder. Coverage stated as 95 square feet. One speed on the product-information table. Safety features named are tip-over shutoff and low-oxygen shutoff. Model numbers to match are F215100 and MH4B. The colorway on the listing is black and red.
Ninety-five square feet is a small room, a tent only if the manual for this model allows that use, or a workshop corner. It is not an open garage and it is not a living room you would cover with the Big Buddy’s figure. People buy the Little Buddy because they want the least heater that still has a shutoff for tip-over and low oxygen. They regret it when they needed two heat settings or a larger area and tried to solve that by running the small heater harder than it is built to run. There is no second setting to turn up. The output is the output.
A 1 lb cylinder is the fuel the listing names. A 20 lb grill tank is the Big Buddy’s accessory story, not this one. Do not assume a hose from a different Buddy fits. Propane fittings are a place to follow the model, not a place to improvise. If you do not already keep 1 lb cylinders, the heater without fuel is a metal box. Cylinders are a separate purchase, and they are not a reason to change models.
Low-oxygen shutoff and tip-over shutoff are safety devices listed for this heater. They are not permission to use it in a closed space the manual forbids. Read the manual before the first lighting, including the clearance to walls and combustibles. Black Friday is a bad time to skip that page because the heater was a gift and the room is already cold. If the manual and the room disagree, the room does not get the heater.
This listing is the new Little Buddy in the F215100 / MH4B identity. A used heater with a dented burner, a missing knob, or a cylinder left attached is a different object. Used combustion appliances deserve more skepticism than used headphones. If you buy new, confirm the model on the carton and that the shutoff features you expect are the ones printed for MH4B.
Best Overall: Mr. Heater Portable Buddy
The Portable Buddy is the overall pick because it sits between the other two on heat and area. The title states 4,000 to 9,000 BTU. The product table lists 9,000 BTU output and 225 square feet of coverage. Model MH9BX / F232000 is the identifier. That is more heat and more area than the Little Buddy’s single 3,800 BTU and 95 square feet, and less than the Big Buddy’s 18,000 BTU and about 450 square feet. Two outputs are the point of the range. You are not stuck on one flame the way the Little Buddy is, and you are not carrying the largest heater in the line.
The fetched page for this model did not show a featured offer. That is a fact about the listing at the time it was checked, not a price and not a promise that a particular seller has stock this weekend. Shop the model number, and treat any offer that appears later as something you still have to read for condition, seller, and return terms. Do not invent a “like new” or a “ships today” that the page did not show. If the only offers are from sellers you would not buy a heater from, wait. A missing featured offer is a reason to be picky, not a reason to grab the first marketplace line.
Two hundred twenty-five square feet is the coverage figure to hold next to your actual space. Measure the room. A number on a box is not a measurement of your garage. Altitude, insulation, and an open door change what 225 square feet feels like. The heater does not grow because the room is colder than you hoped. If you need the 18,000 BTU setting, this is the wrong Buddy. If 3,800 BTU was enough, the Little Buddy is the smaller tool.
Fuel is propane. Confirm on the current MH9BX manual which cylinders and which accessories the manufacturer allows. Do not copy the Big Buddy’s 20 lb tank story onto this model because both are Buddy heaters. The wrong hose is a leak, not a hack. Leak-check the way the manual says, with the method it names, outdoors or wherever the manual allows the check. This article will not substitute a homemade test for that page.
Red is the color noted for this model. A photo of a Big Buddy is wider and has a different control layout. Count the controls and read MH9BX. Accessories sold as “Buddy” covers, hoses, and fans need the model. A cover that blocks the intake is not an accessory worth owning.
Best Premium: Mr. Heater Big Buddy
The Big Buddy is the premium pick because it is the largest of the three. Model MH18B / F274805 lists 4,000, 9,000, or 18,000 BTU, three settings, and coverage of about 450 square feet. It connects to two 1 lb cylinders or, with the accessories the description requires, a 20 lb tank. Safety features named are ODS and tip-over shutoff. The color is black and red. More output and more fuel capacity are the reasons it is the premium heater, not a claim that it is casual to run.
Four hundred fifty square feet is a large claimed area next to 95 and 225. It is still a figure to compare with the manual’s limits on room size and ventilation. A bigger heater in a tighter space is the wrong direction. Three settings let you drop to 4,000 BTU instead of running 18,000 because that was the number in the title. Use the low setting when the space is small enough that the manual allows the heater at all. The high setting is not the default.
Two 1 lb cylinders or a 20 lb tank with accessories is a fuel decision you make before you buy, not after. The 20 lb path needs the accessories the manufacturer specifies for this model. A grill regulator you already own is not automatically the right part. Read the fitting list. Two small cylinders are the path that does not depend on a hose, and they also run out sooner at 18,000 BTU than a tank does. Plan fuel as part of the purchase. An empty heater is not heat.
ODS and tip-over shutoff are listed. They shut the heater down in the conditions they are designed for. They do not replace carbon-monoxide awareness, clearances, or the decision to follow the indoor-use rules printed for MH18B. Put a heater this size only where the manual says a heater this size may go. Keep combustibles at the stated distance. A Black Friday living-room debut is a bad first test if the manual calls for a different kind of space.
This is the new MH18B. Used Big Buddy heaters are a harder gamble than used tools, because the burner, the ODS, and the hoses are the product. Prefer the new unit unless a seller documents a service you can verify. Match F274805 on the carton. A Portable Buddy in a Big Buddy photo is the middle model, and it will not grow a third setting in your garage.
How to shop a Buddy heater for Black Friday Deals 2026
Black Friday Deals 2026 will call every red heater a Buddy. Little Buddy F215100 / MH4B is 3,800 BTU, 95 square feet, one cylinder, one setting. Portable Buddy MH9BX / F232000 is the 4,000 to 9,000 BTU heater with 225 square feet on the product table, and the fetched listing had no featured offer. Big Buddy MH18B / F274805 is 4,000, 9,000, or 18,000 BTU and about 450 square feet, with two cylinders or a 20 lb tank when the right accessories are used. Pick the coverage you measured. Then read that model’s manual before you light it.
Hoses, tank adapters, and “universal” covers are the add-on trap. Buy fuel fittings only when they name the model you bought. A fan pointed at a radiant heater is not a free upgrade. Extra cylinders are reasonable if you already know which cylinder the model takes. They are not a reason to size up from the Little Buddy if 95 square feet was the real need.
Skip any listing that will not show the model number. Skip a used heater with no view of the burner. Skip a Portable Buddy offer that will not state condition, especially because the checked page had no featured offer to start from. New, with the manual in the box, is the clean purchase for all three.
Keep the carton until you have compared the model plate with the order. Heaters are awkward to repack, and a return without the carton is harder. Store the manual in the carton sleeve, not in a kitchen drawer where it will not be found the next cold night. The three models use different fuel setups. Label the hose, if you bought one, with MH18B or whichever model it actually fits, so it never migrates onto the smaller heater.
When a heater arrives, match the model plate before you connect propane. Confirm the shutoff the listing named is the one printed on the unit. Read the lighting steps in the manual that came in the box, not a video of a different year. If the model is wrong, return it unfueled. Black Friday is a sensible weekend to buy the Buddy whose BTU rating matches the space. It is a dangerous weekend to treat three heaters as one product because the brand name matched. Write the model on the order note: MH4B, MH9BX, or MH18B. Those three codes are the whole difference between 95, 225, and about 450 square feet. A red thumbnail is not a code. If the seller cannot show the code, do not guess it from the handle shape. A handle is not MH4B, MH9BX, or MH18B. The plate is. Take a breath and match the plate to the order before any cylinder is opened. Fuel can wait a minute. A wrong heater cannot be fixed with a longer hose.
