The Mr. Heater Little Buddy F215100 is a propane heater that's perfect for small indoor spaces. It puts out 3,800 BTUs, which is good for heating areas up to about 95 square feet. So, think tents, sheds, or small rooms where a bigger heater would just be too much.

Safety is key, and from the manufacturer's description, this model has you covered. It comes with an Oxygen Depletion Sensor and a tip-over shut-off feature. Basically, if the oxygen levels get too low or it tips over, it will shut itself off—offering some peace of mind when it's running indoors.

But, our research suggests making sure there's proper ventilation. Since this is a propane heater, it can produce carbon monoxide, so it's smart to keep a window slightly open and maybe even have a carbon monoxide detector on hand for an extra layer of safety.

From what we've found, folks generally like how it performs, though there are a couple of things to be aware of. The heat output is fixed at 3,800 BTU, which means you don't have different heat settings to fiddle with. In a really small space, you may end up turning it on and off yourself to maintain a comfy temperature.

Also, some people mentioned that the base isn't super stable, so securing it might help prevent it tipping over and shutting off.

All in all, as long as you're careful, the Mr. Heater Little Buddy can be a reliable source of heat in smaller indoor spots. It's handy if you're looking to warm up a cozy area without dragging around a larger heater.

If you're curious about using the Mr. Heater Little Buddy indoors, it's designed with some solid safety features. This portable heater, model F215100 MH4B, is great for warming small spaces up to 95 sq. ft., and it works both indoors and outdoors.

One big plus is its built-in Oxygen Depletion Sensor (ODS) and tip-over protection. According to our research, folks find these features really boost the heater's safety in enclosed areas.

But here's the thing: the Little Buddy doesn't let you adjust the heat level. The manufacturer says it puts out a steady 3,800 BTUs per hour. This means it warms things up quickly, but you might have to play around with turning it on and off to keep things comfortable, especially if ventilation isn't great. Our data suggests that some users find it gets a bit too toasty without this extra control.

Apparently, older Mr. Heater models used to have adjustable heat settings, which some people miss. With the Little Buddy, managing temperature in smaller spaces might mean a bit more manual work, since you can't just switch between low, medium, or high.

In the end, while you won't be fine-tuning the heat level with the Little Buddy, it's pretty user-friendly and dependable, especially if you're focused on safety.

Just be ready for the trade-off with its fixed heat output. But if safety and straightforward use are your top priorities, it's worth looking into.

If you're planning to use the Mr. Heater Little Buddy, you'll probably want to know how long your propane tank will last. This little heater runs at 3,800 BTUs, and with that, a standard 1 lb. propane tank usually lasts about 5 to 6 hours. Keep in mind though, this can vary depending on conditions like outside temperature and your ventilation setup.

Speaking of ventilation, the Little Buddy is designed to be safe for indoor use, sporting features like an Oxygen Depletion Sensor and an automatic shutoff if it tips over. Our research suggests these are good safety nets, but you should still take precautions.

For example, it's smart to use a carbon monoxide detector and crack a window a bit if you're running it indoors for a while.

For those planning longer heating sessions, you might find yourself swapping propane tanks more often than you'd like, so having a few extras on hand is a good idea.

On the whole, people seem to like how portable and efficient it is, though there are a few points to watch out for. For instance, it's got a single heat setting. That means you can't really dial up or down the warmth, which might be a downside if you're looking to control the temperature precisely.

Overall, the Little Buddy’s a solid choice for heating small spaces, as long as you handle it with the right safety approaches and plan your propane use accordingly.