Infrared heater efficiency -- how much is radiated infrared? 

Can I use it to dry my wet shoe.

I"ve got to say, even with this being a "Matthias" review, this recent selling out to shill products turn is not good for the Matthias brand. Every video now is just hawking some product veiled with some "better" testing.

@@gorak9000 wtf you smoking ? this actually the first sponsored vid he has done in a hot minute, and he aint even shiling.

@@gorak9000 I think Matthias has realized that RU-vid’s algorithm and monetization mechanism are a lost cause I’m terms of continued growth of his channel, so he may as well milk the decline while he can.

@@anuj68 WTF are YOU smoking? There's been a bunch of sponsored videos - the air conditioner, the fan (or filter or something), the power bank, probably more that I'm forgetting. There's been a steadily growing number of sponsored review videos in the last while already.

Everyone has a price my friend 👌💸

that only made sense with a highly directional heater, like the dish heater, but that is also the least efficient heater

yes, I'm thinking I should have tested face down now. Anythng other than face down the risk isn't that high.

Looking online, apparently they are angular sensors. One company says their tolerance is 10 degrees from vertical for instance. It makes sense because there really isn't a reason to use that heater face down.

I think it's a sensor to shut it off if it tips over, rather than a thermal sensor. Maybe a mercury switch? Are those still used?

I've had a couple apart. Metal strips with a weighted pendulum. The pendulum broke contact if it was tipped over, but it only worked in one axis.

@@DuffyHomoHabilis of course it's a sensor that cuts power if tipped over. The question is what type of sensor is used and thermal is a possible answer. Mercury switches are rarely used and one in this case would need to carry the full amperage of the heating element (Mathias states it's wired directly) or would require additional components like a solenoid and warning labels.

I hear microwave heaters are even more efficient.

@ctrlaltdebug THE microwave heaters will give you a nice tan. But be careful, or you might start to cook

@@ctrlaltdebug at the end of the Cold War… the USSR did not allow for the use of microwave ovens… because it was originally developed by the US military as a weapon. Sure it might cook you… but, I’ve heard that the ovens can be used remotely to attack people in their homes. Not sure if that’s true, or how that could work. But, it is true that the US developed them to be used as a weapon.

wait so I'm in the middle of this video and I'm not going to get which one is better at the end?

Have you yet enjoyed the "Great Reset", or is that like the Jehova freaks expected to finally exterminate us someday later?? 🙈

Oh and I appreciate the video and I enjoy your work and content Matthias.

yes, all metered

Sounds like a big ceramic resistor?

European 'Trotec' sell this type of IR heaters.. Works flawlessly

I tested the plastic and it lets most of the infrared through.

@@matthiasrandomstuff2221 Love your channel, by the way. Excellent experimentation done to some of the highest scientific standards I see on RU-vid. It's rare someone tests a thing out as rigorously as you do. Thank you for doing what you do!

yes, but they are so expensive!

@@matthiasrandomstuff2221 About $400 now, but it was cheaper when I bought mine. You could do a few insulation consulting jobs at $100 a piece to help defray costs. Or get them to sponsor you.

@@matthiasrandomstuff2221 FLIR phone camera attachments are $250, about the same price as this space heater 😂

Bought mine off aliexpress. 500usd.. Usb C. Plugs into any android. Ten times the resolution and five times the frame rate of flir sensors. Incredible piece of tech. Hti301

@@matthiasrandomstuff2221 You can get decent one fairly inexpensively and maybe a company will send you one. Mikey Pipes got a sponsor and as a heating/plumbing contractor it was worth it for the company. Really shows infloor hydronic loops.

The picture on their website shows it used inside, and the "window open" feature also suggests inside use. I don't think it's meant to be used in the rain.

Confusing gas/propane with electrical heaters?

​@@OmmerSysselno. Electrical infrared.

Had some installed. I plan to do some testing of it, once I have time (whenever that will be)

It has a switch on the bottom for that, which is why I put it on an inclined platform. And I made it clear that it was on an inclined platform to avoid comments from people who know about the switch on the bottom.

@@matthiasrandomstuff2221 ok, must have missed when I watched. I remember you talking about a high temp limit switch but not the tilt switch. I'll have to watch again.

Just nead a flat Plank and a jig

the LEDs for making light are I think at best 30% efficient at making light. So don't look to LEDs for a solution

Mylar might do alright, but you'd probably need a large first-surface mirror (expensive) to avoid the influence of the glass if you were to take that approach.

Regular glass is not infrared transparent.

I don't know

@@matthiasrandomstuff2221 Me neither

none. But if you are very paranoid, the worrying can be hazardous to your health, but that's not the heater's fault.

@@matthiasrandomstuff2221 Thanks!

What about wifi and other radio comm devices ?

Any chances of infrared interfering with radio? I'm considering a big infrared panel but I'm worried about that making wifi signal worse

The usual cheap go-to sensors (for temperature only) are the DS18B20, they are not I2C sensors, but operate on a "onewire" bus instead. For I2C devices with the same/fixed address you would need multiple ports or a I2C multiplexer/switch like the TCA9548A.

The BME280s I like to use can switch between two addresses. I often use the second I2C port on the pi to use two more of them, but it's not so straightforward. I made a video about it.

that depends on how humid the air is which depends on the temp of the air, and if the air temp rises so would the temp of the table saw

Just guessing but i don't think so. Cold metal in warm air causes condensation but an infrared heater would be heating the metal itself, not the air.

@@Lucas12v You're right. But even heating air and cooling it on a cold surface won't get condensation unless it picks up water somewhere

@@bene5431 Good point. You'd really need to cool the metal without affecting air temp to get condensation. Or move the metal to a place with warmer air but that doesn't apply to this question.

go to google, type "2500 btu in watts"

subsidiary. Or parent company. One or the other.

it is 100%

@@JorgTheElder yeah it still sounds like a contradiction but you never know…he shouldn't of said that he had a biased opinion then… But I understand what you're saying

so less honesty would be better?

compared to Europe, yes.

I think Matthias does as good a job as any I've seen being transparent and trying to test objectively. Of course, it's very difficult, if not impossible, to be completely objective when getting paid to review a product. That's where the transparency becomes more important. He tells you up front that it is a sponsored review, so you can take that into account when deciding the usefulness of the review itself and the honesty of his conclusions. You just have to understand that EVERYONE is biased about EVERYTHING. There's no such thing as being 100% objective. You and I and everybody else will always have an initial opinion about whatever it is we're doing. Ikea uses one very well understood and common bias to their marketing advantage - the fact that anything you build, even partially, you will attribute more value to than the same product if you didn't build it.

@@SuperDavidEF my wife bought an IKEA cupboard which I put together and I hate it. Flimsy crap. I'm just being 100% objective you'll understand.

Hopefully it doesn't land near something flammable

@jkbrown5496 All my devices turnoff regardless which direction they tip. Some have a pressure switch on the bottom. If the device moves just 1 mm tilt, that switch turns off

@@JorgTheElder He even says "they required me to say X". And that part failed! :D

I suspect that has to trigger on impact or something like that. Cause the heater can be used in different orientations

it's a patio heater. Though I don't think it's meant to get rained on.

hard to do with it so dispersed, and the wind could act to cool you down.

Haha! Then it will be both an IR heater AND a space heater.

In the USA many homes run 14AWG wire on 15amp breakers. The heater (1500watts/12+amps) AND a fan (min 400 watts/3+amps) might work on a designated circuit. But if it's on a circuit with other draws the breaker would kick. Particularly since starting amps on the fan would be higher. This is why every house I built had 12AWG or larger on 20amp breakers.😉 -KJ

Just a python script I wrote. I usually write a separate program for each test, so it's not "reusable" in that it's not even reusable for me. You just need to become proficient with linux and python and write your own scripts.

At that point, most definitly worry about efficiency. Inside, all the heat at least stays in the building. But yes, patio heaters are kind of wasteful. But I see restaurants use them all the time.