I bought three different flame effect PTC style "miracle heaters". Two turned out to be the same style despite having different listing pictures, and this one (which cost the same!) turned out to be somewhat less complex (huge understatement).
I think the best way to avoid this heater is to make sure you buy one with a remote control. This one does work, but is perhaps a bit simplistic compared to the others.
It is totally scavengable though, with a pretty good flame effect and useful heater section that could also be a source of resistance wire for custom heating elements.
It's notable that the rotating mirrored mylar blades give a great scaled down Star Trek warp-core effect if used with blue LEDs.
This unit is freestanding with a thin flex of unknown electrical integrity, but I think we can safely assume that it will be the crappiest copper coated aluminium type stuff. It's also easy to knock over, so that thermal fuse and plastic front grill may be tested at some point.
The schematic does bear a strong resemblance to a hair dryer with extra effects, and that is kinda because it is...
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I Have discovered a very odd twist in these heaters. You've probably seen these ones that are being heavily pushed online as being Miracle heaters and they've basically got this ceramic heat element in here. They've got the PTC heating system and a computer style fan at the back and I'll take this one apart. This one plugs directly into the socket. Depending where you're in the world, it will have a different style of socket attached to it. This one has a sleeved Earth pin which is a bit naughty, but I don't think it uses the Earth Well, they'll find out when we open this one, but that is not the subject of this video. It's this one and the reason I got this one. I'll put that one down. The reason I get this one is because the picture should this void where the heater was and I thought is this some fancy ceramic heating thing? Is this a different system And it turns out it's very primitive indeed. And the Flames this is just a basically a computer graphic. it's a someone is uh, designed it and then this is the physical implementation and it's quite interesting. It is quite interesting. It's quite noisy as well. so I've taken the screws out this because they are horrible little uh, anti-tamper uh triangular screws that were recessed deeply into it. I had to dig through for bits to to find it. Now let me just power this up and I'll show you running. So here's the hoppy and if I switch it on to full power because it's got a switch at the back, it gives lower high settings. Full power. I'll try and keep this away from the microphone here. Uh, 363 Watts Unity Power factor which is pretty good. Then you switch it to the lowest setting. it makes a very odd noise. It flickers and it drops to 181 watts and their power factor goes down to 0.9 I Thought it would have been worse than that given what it's actually doing for the power control. But anyway, let's take a look at the flame effect first. So just pause momentarily and set it up so we can see this one moment. Please, right? I Think of such this. So I'm going to turn it on I'm going to turn the light off. Uh, hold on. I'm going to focus down onto here first. Uh, turn this on, Turn the light off and this is the effect we're getting. It's a reasonable enough effect I'm surprised it covers having seen the inside. I'm surprised that covers the whole thing and you may notice it tends to go up in surges. Hopefully this isn't just blowing air at the microphone when you turn it down to the lower setting. Oh, super flickery and very dumb, right? Tell you what. That's enough of that. Back to the main video. The light is coming back. The light is back. Let's unplug it and explore what's inside. It may be a bit of an anti-climax Many people said the other ones are probably just a hair dryer inside. This one is effectively a hair dryer inside. I Mean here's what we got. This is Unplugged I Just thought I'd Mention that is the heating and it's still hot. It's not too hot in the back of this down there. Let Me Shine a Light down there. we'll Zoom down a bit as well so you can actually see it down. There is a little thermal fuse that's a little white box and here is a thermal cutout. This is good if you look at the winnings down there, you can see a yellow wire and a red wire. The red wire is live. The yellow wire is a tap coming off part of the windings down there. Um, other than that there's a little uh motor at the back which is uh, being powered from a bridge rectifier here and what's actually happening is is take your TAP as many here jars do. it's take your TAP off the heater. Just using it as a resistive divider is going to a little Bridge right far down here. then it's going up to the circuit board that marshes the power out to the effect motor. Now the effect. Normally this concertinaed reflective mylar, what they normally do. They put a dot of glue at each end and they actually rotate around like this so that it's a spiral, but in this instance they've kind of. They've just basically just smooshed it on and put a drop of Hot Melt Glue there there. It's not ideal. Uh, the powerfulness powers three LEDs down here that reflect off the Miler and it also goes to the motor that is running the fan for speed control and power control. It's a Diode, a diode right up against that plastic. Not that's not just the hot thing next to plastic here, but it's a standard one amp diode and depending which way you switch, the switch will either go straight or power this directly or it will power it via the diode. The other thing I Thought this was a metal Grille in the front. Nope, this is plastic. It's a plastic. Outlet Grill How's that going to fear With a 400 watt heater blowing at it? That's a bit freaky. But anyway, let's get on to the schematic. That's a bit. we want to see anything else worth mentioning here. Not really salvageable bits quite like this. Quite like the little Myler effect thing. It's very nice with a blue or green LEDs It gives it a sort of sci-fi plasma effect. Bring in the schematic. Oh, that's a reasonable enough position. I Shall Focus down in that and we shall explore the schematic. It's a bit swamp type. That's fine. Uh, live comes in and it goes to that three position switch. The middle position is off, the high position is going straight to the element. The low position is going via this diode. Neutral comes in and it goes through the one shot thermal fuse which is the last resort if everything's basically going on far. and then it goes through the thermal cutout, which is designed to handle temporary blockages or airflow issues and then it will reset afterwards and then it. Powers This heat element. now. I've drawn the heating element old-fashioned resistor style because it just seems appropriate being sort of real static, which is what it is. There's a tap taken off that and it goes to redirect fire, so it's getting a much lower voltage than going across the full thing. I should have tested that I Shall test that. Um, I shall test that right now. One moment, please. test complete. 6.5 volts dropping a bit when it's spreading with the air in its half wave mode that is unsmooth. There is a position on the tiny little circuit board that's just splodge down the side of the bridge. right fire across it, but they've not smoothed it. and uh, so that's just choppy full. We've rectified or halfway rectified. DC Depending the mood it's in, there is the fan running directly across that, and the effects motor running directly across that. and then each of the three. LEDs has its own resistor in series: three 330 ohm resistors. Peculiar strange little circuit, but it's not complex. it's very simple. Um I Have mixed thoughts about this heater. To be honest, I'm not sure whether I prefer this one which is quite noisy or this type here. Could plug this one in if you want. hold on, let's plug it in. Oh, it came with a death adapter complete with the sleeved. Earth pin it sit at an old angle. Let's plug this one. I've not tried this one yet. This is also going to make noise isn't it? Is this one going to have the flame effect? Much quieter? Um, much nicer. This one also has the digital control and top buttons and it costs the same. The other one I thought it was going to be special, but the other one is just basically a cheap version of these. Let's take a look down at this one in the dark and see what it looks like. Hmm. to be honest I think the other one had a nicer effect because it ran slower. This one is running quite quickly. There may be a fan speed selection button here I Don't know if that's going to affect the there's a fan speed button. No, it controlled the fan but not the the effect. Okay, right back to the main video. Yeah, I think this one actually had a nicer effect from the actual the flame fact. That might just because they've compromised the space in the other one because all the electronics at the top but this one. Uh, I'm holding the remote control here. This remote control belongs to the other one. Let's get great text and it says a key to start timing the wind speed, heat up and cool. A key to start Exciting. Uh, but that is it. Um, this one is. No. it's cheap and nasty. It's very plasticky. It looks like, uh, if you blocked it, it's got the thermal cutouts. but you know what? Ultimately, it's the thermal fuse is going to go with it if it gets too hot. but it's very plasticky. It's very simple. The Strain Relief is basically just the neutral wire just wrapped around this post. Uh, it doesn't really inspire a lot of confidence. So if you see a listing for one that looks a bit like this with the big huge Port through the middle of it, it may not be worth buying it. Uh, I Think maybe you're better going for the ones the PTC Hishra array. Although having said that technically speaking, this should be more reliable than the heating element wise because it's very simple. but on the other hand, the motor in this one is a little brushed motor I Kind of prefer the computer fan style Motors and other ones, but that is it. It's an interesting and trashy little product, and in that sense, it's quite pleasing. But I Don't really recommend buying it.

13 thoughts on “The trashiest of all miracle heaters with schematic”
  1. Avataaar/Circle Created with python_avatars Andreas U. says:

    Nice, a burning poop simulator.

  2. Avataaar/Circle Created with python_avatars Slikx666 says:

    Plugs directly into a socket?
    Looks like I can't use one. All mine are hidden. 😆

  3. Avataaar/Circle Created with python_avatars Nex Pro says:

    @bigclivedotcom did you do the AVE test with a soldering iron to see if it is thermo-setting plastic?

  4. Avataaar/Circle Created with python_avatars christastic100 says:

    Even the logs look fresh and warm when the heater is off 😁.

  5. Avataaar/Circle Created with python_avatars James Salsman says:

    Awesome power factors!

  6. Avataaar/Circle Created with python_avatars Eman says:

    I laughed at the fake logs and flame effect

  7. Avataaar/Circle Created with python_avatars Graeme Davidson says:

    At least the thermal fuse will stop it fanning the flames when it reaches greater than 100% thermal efficiency….

  8. Avataaar/Circle Created with python_avatars TheGreatAtario says:

    Whenever I end up with one of these open-air heating element type heaters, they never last long. The ceramic ones live much longer

  9. Avataaar/Circle Created with python_avatars Gord Slater says:

    The end of the world is nigh^W –
    $6.99 including free shipping

  10. Avataaar/Circle Created with python_avatars Aurthor Thing says:

    I'm curious how long it would take to melt the grill?
    Will it self destruct?

  11. Avataaar/Circle Created with python_avatars Gord Slater says:

    the one on the left looks like a pile of turds

  12. Avataaar/Circle Created with python_avatars CAESARbonds says:

    Could you go outside and simulate a motor fail?
    Will it cut it in time or go up in flames?

  13. Avataaar/Circle Created with python_avatars Michael MacGyver says:

    As soon as you said "sci-fi effect" my immediate thought was the warp core in Star Trek Voyager, it had a very similar plasma flame effect look to it

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