High Power DIY Ceramic Air Heater! Output Air 200F/93C! (w/adj-speed fans) 18/20a AC/DC solar/bat op
Ғылым және технология
Homemade High Power Thermostatic Ceramic Air Heater! High Temperature DC Powered Air Heater. Output air temps are an impressive 200F/93C (consistent) with top temps reaching 210F/100C. To distribute the heat the unit has 2 built-in high-power fans (hooked to a speed controller) for precise airflow control. Due to the units' high heat capability (it's the hottest DC powered air heater I've ever made) I designed the stand with safety in mind. notice its very low 'center of gravity' and its long wide base. it cannot be tipped over without a lot of effort. also, the 'hot part' of the heating element doesn't touch any part of the wooden stand or the fans. it just hangs out in the 'open air'. Finally, i constructed the stand using full 1" dowels to make it very strong and sturdy.
⚡...about the power supply... the power supply that I'm using is a 12v 360w 30a switching power supply from amazon. surprisingly, those only cost about $15-$20 (i paid 15). this air heaters average amp draw is 17.66 amps (that includes the fans) but can reach as high as 20.1 amps. note that those power supplies are meant to typically only run up to 80% of max. so you'll need a supply of that size to run this unit.
🟢 Another option for running this unit is 12v batteries. I'd use either 1 or 2 100ah LiFePO4 batteries (or 2 to 4 100ah deep cycle batteries). that would give you approximately 5.5 to 11 hours of run time. another option is to hook the unit straight to solar panels, if you do that, I'd recommend no less than 4, 12v 100w Solar Panels (or 2, 12v 200w Solar Panels). you'll need that many panels to get the amps you need. all power options are explained more in the video.
🟡 This is a very warm heater. home furnace temps (at the vents) are usually anywhere from 120F/50C to 150F/65C. Another reference item is a hair dryer. those have output temps of about 140F/60C when they are on the high heat setting.
🚙 note: this heater would work great to heat the cabin of a vehicle, but the amp draw is too high for the 12v power socket. you would most likely have to wire it directly to the battery.
random thoughts: the double-sided sticky-tape i used was just temporary. it will not hold the fans for very long. you have to superglue the fans to the
wood. i used Loctite superglue. there is an old and new version of the element. i used the new version. input air was 68F(20C) at the time of the filming. the square dowels are sold at Home Depot and Lowes. they are usually sold in 36" lengths. to find the power supplies on amazon just search for 12v switching power supplies and to find the heating elements just search for 12v 200w ptc element. there are many suppliers of both. the speed controller is a RioRand 7v-70v 30a one (also on amazon). look for best price. i just did a search of those and they have other brands as low as $9. the RioRand one is $16 at the moment. i also just checked the arctic fans and they just doubled the price. was $10 now $20. watch for best price. here's a similar fan for $11. that one is 18,000 rpm.
www.amazon.com/NNL-DBTB0428B2...
Пікірлер: 29
This little heater looks bangin. I have bought little plug in 500 watt heaters which work with a ptc heater and a small computer fan, the problem isnt the heating element but the very poor airflow from the computer fan. If the fans pushed more air it would actually be good this seems to solve this issue.
@desertsun02
7 ай бұрын
hi. yes indeed! even on low speed this unit pushes a lot of air. i only run it on low and sometimes medium because even that is more than enough. it's the hottest and fastest heater i've ever made.
Man, I love your DIY ingenuity and projects that you come up with. I have built a 300W solar backup system with 2 100AH lifepo batteries. I have a 1500W space heater and IIRC, that my setup would only be able to produce 3-4 hours of usage ? in case of power outage. If the heater in the video uses less power to produce more run time then that, it will give me a great reason to build one. After I finish paying off the 300W system, I plan on getting one more battery and one more 100W solar panel. I love the content of your channel, keep the ideas coming brother.
@desertsun02
7 ай бұрын
hi there and thank you! i think this heater would be a great fit for your situation. you could get 10 to 12 hours of runtime from it on your battery system. btw - I've run this heater side-by side with a cheap 1000w AC powered store bought unit that I got a few years back and they seem about the same. no kidding, i know that sounds impossible but this 200w heater seems to be at least as good in terms of heat generation as that one. it's an older 'nichrome wire based' one so maybe that explains it. those are much less efficient than the new PTC ceramic ones.
@Alpha-ms9nj
7 ай бұрын
@@desertsun02 - Yeah that's wild. I think this will be my next little project to keep me occupied, Have you thought about making some sort of enclosure for it?
@desertsun02
7 ай бұрын
i don't recommend trying to enclose it. if the 'enclosure material' were to touch the element you might run into big problems. best to let it stay open and 'unencumbered'.
@Teknopottu
7 ай бұрын
@@desertsun02Never heard about electric heaters being more or less efficient. Is one watt turned into heat not the same in every coil or cable element?
@desertsun02
7 ай бұрын
@Teknopottu technically, you would think so, but many lower wattage heaters work better at heating an area than higher wattage ones. and different types of heaters of the same wattage can have wildly varying degrees of effectiveness (from great to crumby). i'm not sure of the all the variables but some 1000w and 1500w heaters are terrible at heating a space and some 200 to 500 watt heaters are great. (maybe it's how they 'disperse' the heat)
You're such a wonderful blessing to this community , And I pray that the work you put on display will continue to be a blessing . Because , our talents, which are giving by God The Father; are not just for ourselves . Jesus Loves You , be encouraged !
Good video, thanks for sharing, God bless !
@desertsun02
7 ай бұрын
hi and thank you!
put the "mercury" thermometer on your couch. Great job as usual!
Bought a new small heater 250w my plan is to seal off a small area and use the heat.
Awesome stuff. Can you show the room temp before and after? not infront of the heating element
@desertsun02
7 ай бұрын
hi. i haven't done detailed tests yet, but room temp went way up (especially in the immediate area).
I would love to see a ceramic heated kettle please? 🙏
@desertsun02
7 ай бұрын
hi. i'm actually working on something similar to that. it's a ceramic heater heating stoneware. hopefully i'll have that video out this winter.
@UKsystems
5 ай бұрын
Maby just purchase an electric kettle
Is it OK to use these speed controllers on a brushless fan?
@desertsun02
7 ай бұрын
hi. I can't say they work with all types of brushless fans but they work great with computer case fans (PC fans) which are typically brushless.
were did you get the heating element?
@desertsun02
7 ай бұрын
hi. you can get this heating element on amazon. it's a very common size heating element so you'll see lots of listings for it. the price ranges from 13 to 17 dollars. to find them just search for "12v 200 watt ptc element" or "12v 200w heating element" and you will be lots of them. i bought the 17 dollar one because it was considered the 'newest element' of this kind.
I have a 48V power supply; does that mean I also need a 48V heating element and fan?
@desertsun02
7 ай бұрын
hi. you couldn't use a 48v power supply with 12v fans or a 12v heating element. it's best to stick with a 12v power supply if you make this heater. they are pretty cheap. i got mine brand new for only 15 dollars on amazon and they had other ones for 19 to 20 dollars. i haven't done much research on 48v dc heating elements (but i have seen them for sale). i have not ever seen a 48v fan but they may be available.
@molonlabe8792
7 ай бұрын
@@desertsun02 I've got a 48v fan, heating element and power supply. The heating element was $27 including shipping on Amazon. All I need now is a fan controller.
@molonlabe8792
7 ай бұрын
@@desertsun02 Your power supply has 9 connectors whereas mine only has 6. I'm wonderng how I I can connect all the hardware correctly. I have a smaller size 24v fan that seems to move a lot of air.
Where do you get the materials for build
@desertsun02
7 ай бұрын
i bought the 4 main items (the heating element, the fans, the speed controller and the power supply on amazon). and i got the square wood dowels at home depot. btw - the element itself is a popular one on amazon. they have many sellers. if you have trouble finding any of the items just let me know and i can 'dig up' a link for you. *post any requests as new comments because i always see the new comments but not all of the replies.
lol i got one these to but it mines crypto