Search for pre-heater in Topics


induction heater?

I am looking for plans or instruction on building an induction heater for experiments I can share with my kids.

Question by thedude0311    |  last reply


usb heater? Answered

Okay so my plan is to build a usb heater for the contest, so it can heat up coffe, hot chocolate, of tea. i am wondering if there is another way of building this than to use a cpu and resistors. any information will help. thanks!

Question by Hackrtanman    |  last reply


Halogen Heater?

I stay in the northern area of India and have been using different types of heaters for warming a room. The one i feel s the most effective is halogen heater since they don't dehydrate the room like the others, but commercial heaters are ... how should I put this ??? SISSY ... they have only 2 - 3 halogen tubes and they don't heat the room fast enough. I planning to make one with 6 tubes. Any inputs ? any things i need to be careful about ??

Question by justdeepankar    |  last reply


IR heaters?

Hi all, So I've been searching / reading up on IR heaters and I can easily find IR bulbs /heaters, at 30W+ but the bulb's are pretty big (in regards to what I want). Is there not any smaller-scale /electronic componets for producing IR heat? I know there are IR LEDs but is that the same thing? I'm a bit lost and I swear I came across something before that had an array of small scale IR heating componets, but quite frankly I dont really know what I'm searching for, in regards to a correct name etc... Thanks in advance :)

Topic by lukus001    |  last reply


MRE Heaters

When I was younger, we played with the heating packets from MRE's (Meals, Ready to Eat - Military field meals). My favorite thing to do was to put a pouch inside a plastic container (with a screw-on lid), add water, tighten the top, and wait for the large boom. Here's my question: The heaters release moderate amounts of hydrogen gas once water is added. Of course, with an enclosed container, it will quickly reach pressures adequate to blow a bottle apart (wear eye-wear). But once I joined the military we would add a flame source, so we could see just how large the blast was. I wasn't so sure that flame would actually add anything to the gas explosion. They were sure of it. Is anyone aware if: The presence of flammable gas (exploding from a plastic bottle) with an external ignition source would increase the blast? Or maybe just add another factor to it? I'm sure somebody knows. Every once in a while, though I've been out of the military for about 4 years now, I still find it surfacing from my friends. Just curious.

Topic by ghostguard7    |  last reply


USB heater

Hi everybody! As sais in the title of the topic, I want to realize a USB heater. Let me introduce you to what I think. Last week, I was in the store near high school with some friends, and one of them told me : "It would be cool if we could heat up things in high school, to have like a mini oven directly in our locker, working with battery." Of course, the idea is not to install a oven in our locker, firstly because it would need an incredible battery, and secondly because it would be pretty dangerous.... So here is the idea : the goal is to heat up at least 2 chocolate breads at 60°C. The heating time is not very important, but it has to be under 40 minutes (a system will start the oven before our break). But here is not the most complicated : the oven has to get its power from a usb power bank(I can plug in 2 power banks if necessary). To conclude, I have to fin a solution to heat approximately 1.5L,( but most of it is filled with air), at 60°C, with a power of a maximum of 20W. I saw things to heat coffee by USB, would it work if I take the heating pad? Also, I would like to know how much power I can  get from a power bank (in W), before it to heat too much.

Topic by Romdu421    |  last reply


Heating a winter garden pond with a car pre-heater!?

Anybody thought about heating a winter garden pond with a car pre- heater!? Here in the UK garden pond fish get really cold and more often than not ponds freeze up. Would you budding geniuses give this topic a little thought - would it work in a controllable manner?Thank you.

Question by TN1946    |  last reply


Want to know how to build a waste oil pre-heater for a waste oil burning furnace.

Who out there can tell me how to build an oil pre-heater for a waste oil burning furnace. I need to heat the oil so that it will atomize through a Carlyle AF 15 oil burner. Any help would be appreciated.

Topic by rattle09    |  last reply


pre-school games?

I'm looking for gross-motor games for pre-schoolers?

Question    |  last reply


Pre-drilled shelves?

I would like to know where I can purchase the pre-drilled melemine shelving upright boards in order to construct some custom built bookcases.

Question by masterhog    |  last reply



12v car heaters

12v 120w car heater should draw 10amp per hr and 50amp in 5 hrs , is this correct or is there other factors effects this guesstimate?

Question by celalboz    |  last reply


Vintage Heater Repair

I need a replacement heating element, D80, for a vintage elec. heater made by the Carborundum Co. of Niagara Falls.  Any help?

Question by carl.buergler.7    |  last reply


Solar Water Heater?

Does anyone know where I can find a solar powered water heater? I have an outdoor kitchen & would love to have heated water. Small size-under 15gl would be just great. Thanks-txrosee@yahoo.com

Question by txroee    |  last reply


Waste Oil Heater

Hey guys, I am looking for some info on how to take an existing oil burner 'gun' (I have an extra Beckett burner) and rig it up to burn waste oil. I make biodiesel already, but I'd like to try burning some waste vegetable oil and motor oil as well. I figured since I have the extra gun, I might as well try it on that. I'm assuming I'll need to set up a pre-heating tank, and some sort of pressurized system to spray the oil since its thicker and heavier. Anyone already done this?

Topic by curdy    |  last reply


gas wall heater

The pilot light will not stay lit? i have replaced the "generator " which is what they call it rather then a thermo coupler . wondering if i should pull the gas valve ? I'm not exactly sure on how the generator keeps the pilot gas on? anyone have any ideas?

Question by george.stevens.52035    |  last reply


Old oil heaters? Answered

Just wondering if anybody knows of any links or anything for the cleaning, maintenance, and lighting of the old free standing oil heaters? Not the kind with blowers and ignitors, just the basic ones that people used to use to heat their houses and such. I have one in my garage from an old railway caboose and would like to use it on occasion in the winter, but the only info I can find on the net is for oil burning furnaces... A totally different animal. Thanks in advance!

Question by Stew2    |  last reply


Water heater with nichrome

Hi ... i want to make electric water heater with solar panel how much nichrome wire in lenght should i use and how much gauge of nichrome wire should i use. is that possible ... i heard about 32 gauge nichrome wire which can work on dc.... is that possible....

Question by nts06    |  last reply


Old oil heaters?

Hello, just wondering if anyone could post any links or anything about old oil heaters. Not the pressure fed ignited furnace type, but the gravity fed ones with a simple carburetor. I have one in the garage that originally came from an old railway caboose. The previous owner (5 years ago) used to heat the garage with it but I haven't the foggiest how to clean, light, or maintain the thing. I'm sure if I take it apart I will be able to figure it out, but was just wanting to get and idea of what to do to it to maintain it. Thanks in advance!

Question by Stew2    |  last reply


solar garage heater

I would like to build a solar panel to heat my garage.  I intend to use a 4x8 used piece of glass, 2x4s, and cardboard tubing.  I can handle this part.  I need help with the air circulation.  I would like to have a solar fan come on when the temp inside reaches 70F.  What parts do I need and how do I connect the parts?

Topic by willpaul    |  last reply


New water heater

Oh please help me decide( and more importantly convince my buzz word influenced wife), I want to replace my current hot water heater, there's nothing wrong with the current one other than being 18 years old, meaning it's a ticking time bomb waiting to flood my house. So anyways, the local gas concern has partnered with local contracters Tankless install $25 a month of 60 months, minimum spec heater, does not include expensive, required stainless steel venting. $450 rebate Tank heater 40 gallon install $10 a month sixty months, includes venting $350 rebate Now the no brainer, my gas bill is averaged at $41 a month, $30 is actual gas charges, Now, the tankless claims to save "up to 50%" which is marketing speak for "does not save 50%" but let's say it does, I would save $15 a month, the difference between the cost of the tankless versus the tank, so it would be 54 months before I started saving money. And since we plan on "upgrading" to a new house before five years (when I've graduated), I will never see those savings. Guess I really should get the tank heater, what do you think?

Topic by Tool Using Animal    |  last reply


Water Heater Idea?

Hia! Would this work. I have a lava lamp base, which heats up (I think its a heat lamp). If i made a platform and put a metal kettle ( Hey! That rhymes!) on top, would it heat the water up? hat about other food uses for one? Thanks!

Question by Warlrosity    |  last reply


Cordless Car Heater

Hi all, I am camping in my SUV in northern CA. It's a bit cold at night and in the morning, and can stay warm with blankets and a sleeping bag, but, when I get up, and want to change clothes or just sit, it is really cold. It's a 1999 Ford Explorer V6, and I am trying to find or make a device that would heat the interior without turning the engine on.  I've seen handwarmers on amazon and ebay, but I don't see anything that warms that much space without a plug and without CO2 emission. Any ideas?

Topic by pranaman    |  last reply


Induction heater 2.0

Some might have already tried my first induction heater, which was more a proof of concept than a modern device. Although I like to keep things simple where possible I want to upgrade my heater to a fully electronic version running on mains power. This time the base concept is to use a cheap induction cooktop for the control and power source. After using a few already as a communication device I realised it is a costly way of producing smoke signs but I am getting on the right track with the design now. So my obvious questions are: 1. Did actually anyone ever built my current induction heater and if so, can you provide some nice pics? 2. If you were interested in a hobby induction heater, what would like to do with it?     E.g: Just for curiosity on how it works, heat treatment of punches, chisels and similar,     heat treating knifes or even swords, sheet metal work.... 3. What would like to have included?     E.g: Water cooling for continous use, air cooling (mostly for smaller and quick jobs), exchangable coils,     additional micro controller for temp, water and remote control (foot panel or similar)... 4. Do you require a fully shielded version to avoid interference? 5. If you are based in AU (preferable VIC): Would you be able to donate me faulty (partially or fully) or working induction cooktops,     for example discarded units with broken glass tops?     Would you able to donate me copper tubing OD8mm or less? Leftovers from pluming installations, old LPS systems or similar?     Prefered lenght 1m or longer as the coils need quite a few turns... :(     Each donor will of course be listed in the Instructable unless you prefer to remain unnamed. Let me know what you think because this time I am not just building for myself, this time it is for you!

Topic by Downunder35m    |  last reply


Mirror Heater/Demister?

Hi, I need some advice on how to wire up a homemade mirror heater or demister. I have an old toaster which I have gutted to get the heating elements. I also have a few old wallwarts to power the thing. Is using these wires the right thing to use as a heat source? It doesn't have to get hot, just slightly warm. What kind of circuitry will I need to warm up the wire? I also got some modelling latex to embed this wires in to make a heating "pad" for the mirror and to insulate it. Is there a better material I can enclose the elements in. Thanks.

Topic by Armbie    |  last reply


diy pool heater

I have tried so many different ways to heat my pool water and have had little luck. One way I did it was to take about three hundred feet of black 1/2" drip line and run it around the pool rim. I supplied cold water from a smalloutlet attached to the return line,using the power of the filtration pump to move the water from the pool through thecoil and I adjusted the flow to about half of the normal, then at the end I had the heated water re-enter the pool. Iwould say the water got to about 100 degrees, by the time it went through the drip line. The problem is that it wasn'tefficient enough to have any real effect on the pool water temperature which stays at about 60-65 even on the hottest days. I live in the Sacramento area of California, and we get pretty hot summers, usually about 90-105. Any suggestions on how I could make this idea more efficient? My pool water temp is always too cold to swim in, and I have a capacity of 12,000 gallons.

Topic by dandaman1950    |  last reply


Car Heater/ Warmer

Hello I am Melwin from India I want to create a Car Can/ bottle Warmer/ Heater. My Basic Aim is to make hot water for preparing baby formula my baby when I travel with family in my car. This way I can avoid multiple stops for getting hot water. The commercial versions are available in the Market for a minimum of 3000 Rupees. It is very rare to buy in India My plan is to buy a 220 v 1000Watt Heating Element and cut it to suit to 12v When i measured one test setup with such a coil I get around 1.5 Amps per coil. I didnt have a thermometer to test how hot it gets. Since the car Cigarette Lighter supports 10A. I can easily Add 4-6 Coils of the same length in parallel. Also I can add switch to get different temperatures by adding up coil for each switch. 1-2 Coils = Warm. 3-6 coils = Heat. I dont want it to be a huge cooker. It should be able to heat up a glass (200 ml ) of water till 50- 60 degrees C) A higher version can have a Thermostat to cut off things as a safety feature. If this setup succeeds in boiling up water then I can also have my favourite cup nooodles when on long trips with friends I plan to make a small ceramic frame to mount the heating elemmet. On top I will place a Copper plate. Leaving some gap between the Plate and coil. This entire setup will sit in a Tin can of suitable diameter. I need to think about how i get the ceramic frame to Sit inside the can without touching the Metal. To this Metal can i will attach a handle so that it can be handled when hot. My next question. Where do I place it in my car safely. Suggestions/ Concerns/ Comments please Melwin

Topic by melwinmyworld    |  last reply


Pre-Formatted Text Issues

Hello; Several of our instructables have pre-formatted text in them. However recently this text has stopped displayed properly. It has gone from being multiple lines to a single long line. Is this a fixable issue? Examples: https://www.instructables.com/id/S99CDK8FWS6JUQS/ https://www.instructables.com/id/SAXXIILFSH7EDVM/ The Long line after "The Code"

Topic by oomlout    |  last reply


Call for pre-made parts!

We're rolling out some new parts for the Kits in 123D Design.  That means you'll soon have some real-world models at your disposal in the Design app, and I wanted to see if there were some specific requests out there for parts that you might use on the regular. I've put in for some tools and hardware - like metric and SAE wrenches and hex bolts - but is there anything that you'd like to see as a part or a template?   M4 screws for an Arduino enclosure? 4" 2-way gate hinges? Eye-Hooks? Light bulbs? Threaded rod? Phone cases?

Topic by andrewt    |  last reply


Low cost water heater

I wish to build a simple, afordable, low cost, solar water heater that is easy to construct and does not need electricity. Is that possible?

Question by rseni    |  last reply


solar heater HOW TO? Help!

Hey I got this solar heater stuff off craigslist but have no idea how to hock it up to my water system any idea what parts goes where?

Question by nfarrow    |  last reply


water heater popoff valve?

I am trying to replace a popoff valve on my gas water heater, the heater is about 10 yrs old and is leaking at the plastic valve on the top where the water supply comes in. I have found a replacement but not sure how to get the old off and the new on?

Question by kayneed    |  last reply


Using a computer as a space heater?

Anyone have an idea to funnel the hot air from a computer into the surrounding air to be used as a space heater? Its getting cold up here and the only significant source of warmth is my video card.

Topic by emuman4evr    |  last reply


Burning Barrel Pool Heater

I have a 3,000 gallon inground pool and no heater. If I took a barrel, stuck it in the shallow end just a half inch above being totally submerged, and lit a fire inside it it would it work to heat the water around it and eventually heat up the pool?

Topic by jakeotron  


Making a solar pool heater?

I am planning to make a solar water heater for my kids little pool and am wondering if I could use PVC piping and Plexiglass or will it get to hot and melt them?

Question by chrisandamanda    |  last reply


Microwave home water heater

I am interested in any design or work anyone has done to build a microwave type water heater for home use to supplement or replace my existing water heater. So far i have not been able to find any info on a workable design. Send me a message at    jaybird@mtco.com

Topic by thorning    |  last reply


Homebrew heaters using resistors?

Hello, First time poster! :) I've been reading up on some projects on this site centered around small homebrew heaters. One I came across I want to adapt is using two resistors and usb port power to make a small coffee mug heater. I'm kind of a novice at electronics, but I'd like to know how to design such a heater with safety and functionality in mind. I also want to control this heater via arduino if I can get a prototype together. Some questions I have: Where to get and what kind of resistors for heaters? How do I figure out what resistors to use based on power. e.g. 12v or USB power? What's a good thing to "encase" the resistors with that will withstand heat? I have thought about using radiator repair epoxy. Thanks for any help!

Topic by Sylvester2009    |  last reply


IGBT ZVS Induction Heater?

Among the many tutorials for building an induction heater out on the internet, there are two primary types. Some heaters use a ZVS circuit, and are quite simple but generally limited to a power of around 1000 watts, not enough to melt most metals. Other heaters use PLL controllers and coupling transformers to add charge the primary coil/capacitor loop, and these can be much more powerful but are significantly more complicated (and expensive) to build. It seems the limiting factor in the power of the ZVS circuits is that they can use only 2 MOSFETs, and each must conduct large amounts of current. However, if these could be replaced with IGBTs, which could conduct far more current, a much more powerful ZVS induction heater could be built. Is there any reason IGBTs couldn't be used for a ZVS heating circuit?

Topic by PleaseWork55    |  last reply


Battery Powered Water Heater

I want to make a portable steam generator for my school project. So I want to know if there's any battery powered water heater (that can be used to generate the steam) The steam generator device will be used to help you unwrinkle your clothes without ironing them (in case of no electricity or laziness) so I need any battery powered water heater that is strong enough to generate a lot of steam. Please help or give suggestions. Thank you

Topic by WafiqahK    |  last reply


Coffee pot space heater

Ok, so this is my first post. I love this site! Anyway, I have a couple of old coffee pots that still heat the water, they just dont make coffee anymore. Im wondering if maybe i could make a very small and very low energy use space heater out of the parts. any ideas on how this might be accomplished would be great.

Topic by kithso    |  last reply


induction heater plans that work?

I need an induction heater to heat a half inch pice of round mild steel, i need a schematic and circuit diagram, if anyone knows where i can find this with parts i can get from maplin i would be most gratefull thanks in advance everyone martyn

Question by martyn158    |  last reply


Inflatible pool water heater?

I have one of those inflatable pools that is 12'-0 x 3'-0. It is in a partially shaded yard and the water does not get very warm. Any ideas on how to warm up the water??? I have thought about using black pvc pipe and mounting that on top of our roof and possibly getting a larger pump to cycle the water. Please help

Topic by dtsteel    |  last reply


Electrical timer for a water heater

I would like to have a water heater of mine turn on and off with a timer.Its important that the range of the timer is from 0 - 20 minutes. its also important that it can switch on an element that will draw 2000 watts. The timer must be a simple dial and knob type not a digital programmable. It can also be a press button for the amount of minutes example: press 7 times for 7 minutes? any ideas Dino

Question by jollyboats    |  last reply


Battery Powered Water Heater

I need some help. Well, I'll be honest, I need a lot of help.  I am trying to heat 1 liter of water running through a small tube that holds 8ml of fluid up by 12C, with a maximum temperature of the heater reaching 60C, and the entire liter needs to be heated within 30 minutes.  In my experiments, the tube holds 8ml of fluid while passing along the 'heater' core, and will pass by the core in a total of 10 seconds. So 8ml heated by 12C in 10 seconds is the limiting factor and multiply that out to cover 30 minutes.  The good news, I have managed to accomplish this feat by wrapping the tube around a curling iron rated at 80W x 110V. End result is 12C rise in output fluid, so I know the theory is completely possible.  However, here's the kicker, the entire system needs to run off of battery power.  So the 2 big questions are: what material should I use as the 'heater core' since I can not use a standard curling iron, and what battery system/configuration should I use (needs to be universal purchase ie, AA, AAA, D, C, 123, 9V, etc) Any help would be greatly appreciated both to my personal safety as I tinker in the garage, and to my wife's sanity as she watches me play with water around plugged in curling irons. :) Thanks in advance. WS. 

Topic by whiskeysausage    |  last reply


DIY mini Heater for vaporizer ? Answered

Hello, I am building a Vaporizer in Steam Punk style! It has now become a rather advanced project... And I want to include a little heater instead of using a Lighter to Evaporate the oils in the Weed. It is really hard to find a tiny battery driven heater... I found this one:  http://www.alibaba.com/product-gs/486719295/ceramic_heater.html But I would have to order 2000 -_- Not really an option. The best solution so far was on this site actually.. https://www.instructables.com/id/Make-a-battery-powered-soldering-iron/ Just not sure it has the right length for my design.. I would prefer a Flat Heating element and then the Weed is placed inside a small Iron Box on Top. Also, I dunno about the hazards of that soldering iron. Any ideas? A Wire and a battery and resistance? Edit: Also found something like this: http://www.conrad.de/ce/de/overview/0506030/Heizelemente;jsessionid=DB600645BCB22DBD20445E3E530EB879.ASTPCCP9

Question by Schoening    |  last reply


Hacking a pipe heater thermostat

Hi I am wondering if anyone has an idea on how to change the thermostat on a "store bought" pipe warmer. The kind you would wrap around your outdoor pipes to keep them from freezing in the winter. They are set fairly low, around 70f I believe and I would like it to put out a constant 100f or so , to about 150f or so. Thanks, GA

Topic by Georgeaco    |  last reply


ZVS Induction Heater help?

Hi, I tried to build a ZVS induction heater using this circuit http://img413.imageshack.us/img413/5136/inductionm.jpg , but I had no sucess. The work coil is 10+10 turns of 22 AWG wire around an old highlighter casing, and I am powering the circuit from a working 12 volt 7ah battery. The circuit works with my flyback transformer, but does not work on the induction heater. I am using all of the standard components in the flyback circuit, but I replaced the 5+5 turn primary with a 10+10 work coil. As far as I mesured with my thermometer the temperature of the object never increases over 1 degree (I am trying to heat copper wire or a small picture nail). Does anyone have some suggestions? Edit: Sorry about the delay, but I was able to heat a large paper clip using 8+8 turns of 16 AWG wire wrapped around a glass test tube. This time I used a huge 24 volt center tap 18 amp transformer to get 12 volts.

Question by TimTD    |  last reply


Micro Water Heater/Cooler

The title says it all! I'm looking for a small enough unit to carry (under five pounds, optimally), that can either heat or cool any liquids passing through it. I was initially considering cooling plates, but that requires an extra pump and more equipment, which kind of brings me over my weight total.  It's also perfectly fine if both units are separate, as long as I manage to get my hands on something I can use.  Thanks!

Topic by ewitwins    |  last reply


Carburettor Heater - need help

Hi All, Hope this is in the right section. I am working on a project to heat the body of a carburettor (Bing 84) in order to prevent carb icing.  No commercial solution exists for my carburettor.  My engine (for paramotoring) is air cooled so can't use water from cooling system. My idea was to strip out the nichrome heating element from a car cigarette lighter and use that.  The heat needs to be applied to the metal casing of the carburettor, preferably being hottest near the air intake side of the carb.  I decided the best place was where the air filter is attached - a 12mm long metal throat with a 35mm diameter The trouble is, I don't know I can transfer the hundreds of degrees of temperature from the nichrome to the metal body of the carb without just shorting out the battery.  If I am to have a layer of insulation between the nichrome and the carburettor, what can I use that will conduct heat but not electrical current, and withstand around 300 degrees of heat?  I also thought about reducing the current and spreading the heating over a larger portion of the metal casing, which would allow the temperature to be lower. I have also been experimenting with motorbike hand grip heaters that run of 12v but they don't generate enough heat - I need to be pumping in around 8-10A as the internal cooling effect of the fuel vaporising rapidly causes sub zero conditions inside the carb even when the outside air temperature is well above freezing.  I have a 7Ah li-ion which I would only switch on when required (maybe have a latching push button on throttle control). It may not be doable but its an interesting project nonetheless and something I am going to play around with.  Any ideas? Thanks, Dug

Topic by dugaldcurtis    |  last reply


how to make an above ground pool heater?

Solar heater for above ground swimming pool

Question by judie58    |  last reply