Nice work! Thank you greatly!

Thank you for useful and important information.

Thanks. Keep people safe.

Very helpful, thanks

would a half cinder block be good for keeping the heater upright for a little buddy? I might have ot measure the dimensions of the tank v.s. the hole in the block.

What is the detector your using

I'd like to see a video of a catalytic heater running and a CO detector showing a reading other than zero. Personally, I would only use a catalytic heater inside.

How the Mr Heater low oxyben sensor works (from my understnading). If propane is completely burned, the byproducts of that burning is CO2 + H2O. If incomplete combustion occurs due to low oxygen level, then CO is and added byproduct. That indicates to me that the heater is faulty. In the Mr Heater Buddy heater, there's no actual low oxygen sensor. It's actually a venturi that allows a limited amount of air (O2) into the pilot light circuit. Just enough O2 that's equivalent to the O2 levels at and below 7000 ft. The pilot light needs a certain amount of O2 to contiue buring (at least 16% O2 which is equivalent to aobut 7000 ft elevation. Above that, the pilot light wanes and goes out due to the lack of O2 through the pilot venturi. The pilot light heats a thermostatic valve that keeps the propane flowing. If the pilot light goes out, the valve closes and shuts off the flow of propane. You'll see in the owner's manual that the altitude limitation is 7000 ft. If you get any CO, there's a defect that needs to be addressed.

They have to put those warnings so that they don’t get sued but so many are advertised for tent use 🤔

Try out Coleman lanterns. Propane vs "White gas" aka naptha

Nice work! Catalytic heaters do not produce carbon monoxide. This is because they are not creating any gasses. While they can use natural gas or propane, catalytic heaters only speed up their chemical process rather than combust it. There are some variables that come into play. Yes on pilot setting before that chemical reaction begins you'll produce more CO2. Once they burn their generally efficient. Depending on your state or country because it's still a gas heater notices and or disclaimers are required. Not all gas heaters are Catalytic but they fall into the same category. With supervision and care they should be 100% safe indoors. They should not be used carelessly. If a side of your tent falls in that heater could melt the tent producing fumes. Again variables. This is a well done video. I'd like to add although the way they burn they should be completely safe but you should not use them unattended as they could become dangerous in some situations.

I never understand these videos, what is the difference between using this heater, and using propane to cook with in your home? My grandparents always had propane stove and heat (literally open flame) and never was an issue? Are you testing that propane is not leaking or are you testing will it kill you or not? Thats why even after I watch the videos I am baffled and what people are trying to prove when propane is burned in homes by millions on a daily basis. The O2 sensor probably kicks in at 70 ppm, that the actually limit that CO2 sensors will alarm.

Of course you wouldn't use one of these to heat your tent. You're a Millennial. I have used a Coleman Procat tent heater for over 20 years with no problem. Oh no 6 -9 PPM, geesh. And I have camped in my crew cab with about 1 inch cracked window and my CO detector showed 0.