Heater Definition and 192 Threads

A student goes out to purchase an electric heater for his flat. The salesman says that, to get more heat, he should purchase a heater with a high resistance because P= I^2 R but the student thinks that a low resistance would be best, because P= V^2/R explain who is correct? Hmmm I'm...

Hi, I was designing a High Power High frequency Induction Heater inverter. I've choose H-bridge configuration for the inverter and IR2110 gate drivers to drive the bridge. As the IR2110 is a half-bridge driver i'll use two of them to drive the both sides. I've done a rough circuit(just...

Dear Experts Happy Holidays everyone! I found out that the electric wires of my home water heater gets very warm when I use the heater for normal showering. There are 3 wires : Earth , Neutral and Live wires. I unscrewed open the power socket and power plug. The wires are melting the...

I am trying to upgrade my antique car while still keeping the factory look The rear defroster is a blower motor that sucks in cabin air and blows it onto the back window. The air in the cabin has to get warm before the windows will defog. I am thinking of helping that a little by...

Why water heated with electric heater remains hot for long time than water heated by gas stove

I had a 24V DC tractor cab heater that decided to let the magic smoke out shortly after hooking it up for this winter season.So,I checked the company website-DC Thermal-and they have the new improved models which claim to output almost 3 times the heat in BTU's.These are quartz type heaters.My...

Ok, I have some questions to answer for this lab report, and one of them has left me clueless. The experiment was as follows: An apparatus is made of a rectangular circuit (of known dimensions) of tubes filled with water with thermometers visible at various points throughout the circuit. No...

I am working on designing a heater to heat up the glue on a hockey stick to remove the blade. Typically this is done using a normal heat gun that can get the air up to 1000*F. My team is planning on having a metal piece that is U shaped to insert the hockey stick into to heat up the glue. We...

Hello, I am looking for something to keep plastic parts warm and pliable. We have plastic discs that need metal pins snapped into some grooves and they snap wayyy to tight. We checked with a vendor and the material is still within spec, but I cannot change the material It takes one minute...

hallo everyone, I have a problem which i can't solve. Does somebody know how to solve this problem?? The question is: A 220 V electric heater has two heating coils which can be switched such that either coil can be used independently or can be connected in series or parallel, yielding a...

Dear Friends and Senior Members , I am from India, Asia and we have the 240 V electrical system. We also have Geyser / Water Heater installed in our home 2 Nos. From the past 2 months I observe that sometimes, really sometimes the water heater installed in my room gives shock, I mean the...

I am constructing a resistive heater that I plan to operate using a standard car battery. Resistance has been measured at about 1 kilohm, but whenever I hook up the battery, the wire begins to smoke at the source, but the element does not actually see any temperature rise. With resistive...

energy balance for closed feed water heaters

Here's a bit of a weird one. My grandmother (93 years old but "still with it" mostly) had a natural gas heater installed last year. It's one of those wall mounted heaters with a flue. Anyway, several weeks ago she told my parents she could hear the radio through it at night. I was quick to...

Hello, What i need to do is; create an RTD sensor, hook it into a MCU and use the mcu and the self heating aspect of the RTD to maintain a constant temperature. I attached 3 files: the first is the circuit running under normal load of .001A, the second is of the housing for the rtd itself (i...

Homework Statement A radio (power = 150 W) and a water heater (resistance = 40 Q) are connected in parallel. The current, needed for them is fused at 10 A maximum. Homework Equations Does the fuse stand the simultaneous use of the radio and the heater? The voItage is 240 V. The...

I just finished some changes to my website http://inductionheatertutorial.com I was hoping that if anyone had some comments such as criticism, improvements, subtopics they would like to see, or if they are happy with its current form. The site goes into some theory. This is followed with...

Hello - I am a newbie looking for some basic help. I am working on a school project and need to heat about 24 inches of coiled nichrome wire. I am using a 9.6V battery ((1600mAh). It heats the wire nicely, but only lasts a minute or so. Do I need a Potetiometer to regulate the heat or some...

Hello, I am new to this and need some help designing a project of mine. I am trying to build a small battery powered heater using nichrome wire. I am going to be heating a liquid within a coiled copper tube and plan on heating it by wrapping the tube in nichrome wire. Since this is a...

I am asking about heaters that heat houses (not water heaters, etc.). I am asking about furnaces that heat houses. What is the difference between a heater and a furnace?

hi guys I am looking to find a source of radiant heat about 2 inches wide and 6-8 inches long and i got to thinking if i hook up 8 AA batteries in series it should produce 12v needed to power the element of a water heater, my question is will this power source work to run the element? thanks

Hey everyone! I am trying to build a small electric heater as a DIY project. My only experience in electronics is a digital electronics class I took...other than that, I'm new to just about all of this stuff, but I can pick up on things rather quickly. Does anyone have any good resources that...

Hi all, I have question regarding to heater I want to build. It suppose to be a heater used for soldering a thin copper sheet (1mm thick) with other small copper components. Heater has to be flat as much as possible and reach the temp up to ~250C (solder melting point). The copper sheet...

Can we use heat from processor for heater? In some web, they said that is not feasible to do because the heat is not enough. PC processor has temperature 90 deg C (for game PC),so that is feasible, isn,t?

http://www.edenpure.com/ Curious if these actually help people with heating costs. Looking for any testimonies from PF members, or close friends of PF members. While I understand the claims would vary from situation to situation (size of home, apartment vs. stick built house, w/ vs. w/o...

Hi..I joined this forum a couple of days ago and I find that this is the best place for newb like me to share and seek some ideas. I have a question to ask and I don't know if this had been asked before. Would it be possible to heat water to its boiling point by solar? The idea is to...

What follows will be a very practical question for the winter months. I'm a senior math major who appreciates efficiency. And saving money, I like that too. As it turns out, the heater in my apartment eats money like there's no tomorrow, so it generally tends to be left off for obvious...

I am trying to develop a btu calculator for my solar thermal water heater. I would eventually like to use labview to do the acquisition. I have an internal heat exchanger and know the temperature before and after it enters the exchanger. I have a flow meter w/ a pulse output. What would the...

Hey all: I am taking a Thermodynamics course and we are studying work and heat through surfaces (i.e. conduction, convection, and radiation). I was given an assignment and I am having trouble arriving at the correct answer. I have scanned the question and the works I have so far. I hope...

I am trying to determine a wire to use as a resistance heater. I want to adhere this wire to the rear of my satelitte dish with aluminum foil tape. I am in the process of designing a temperature and humidity controller to cycle the heaters on and off. I know that I need the heater to produce...

Homework Statement a piston of mass M is attached to a cylinder made from thermal insulation. There is no friction between the piston and the cylinder. At first, the cylinder is placed horizontally and n mol of an ideal gas of monatomic molecule at the same temperature To and the same pressure...

How do i make a resistance heater for heating a liquid? DC or AC both are acceptable. But i need to know the power of the heater - (P = VI)

Homework Statement A current of 22 amperes flows in a heater coil whose resistance is 5 ohms. What E M F in volts is required? Homework Equations The Attempt at a Solution Not quite sure where to begin. I'm thinking the internal resistance, R, is inherent w/the circuit so EMF...

Hi. Homeowner here who is looking at his brand new hot water setup... 2 tanks. 50 gallons each, with a 4500 watt electrical heater in each one Tank 1 output feeds to tank 2 input. Outside water is fairly constant 50 degrees F I am curious: how long can I take a 3.5GPM shower? (output...

I am about to pour a concrete floor in an addition to my basement (about 13' x 24'). This room is adjacent to my electric water heater. I have bought a 9500 btu R-22 compressor which I plan to use to replace the electric element in my 50 gallon water heater. The condenser is the water heater...

Homework Statement A 580w heater is designed for use in Germany, where electric outlets supply 230V(rms) service. What is the power output of the heater when plugged into a 120V(rms) outlet in the U.S.? Ignore the effects of temperature on the heater's resistance. Homework Equations...

I stumbled upon this forum and hope to read up on many threads. I have actually put together a tutorial on a DIY induction heater. I am hoping that I can get some feedback on it, and if there any areas I can explain more or better. The link is http://www.mindchallenger.com/inductionheater"...

I am working to build a device that includes an air pump and heater. The pump will push air through a tube at the end of which will be a heater element. After doing some research, it seems that Nichrome is the standard heating wire for hobbies. I'm planning to have the heater in a glass-section...

Say I have a space suit that is heated only by the heat generated by my body and I am located in deep space where the only heat is from the microwave background. If I kept putting more and more of the best insulation around me will I stay warm? Is there a theoretical limit to how much I can...

I had to fix the heater today because it was starting but not staying on. I called a friend (heating guy) to see what to do. He told me about a sensor that probably had build up on it and that was the problem. This sensor is a 1/16” diameter solid rod 4” long that is held directly in the...

Homework Statement A heater rated at 2000 W operating at 250 V is used on a supply of 230 V. If the resistance of the heater is independent of temperature, calculate the power absorbed by the heater.Homework Equations P=\frac{V^2}{R}The Attempt at a Solution resistance of heater ...

Hello! I've got an IR heater http://roxi.ru/media/user/1243/img_11940_940x720.jpg I've put against the wardrobe in a distance of 2 meters for I want to heat all it's surface. But for an hour of heating I don't feel heating of it's surface. Also I have put my washbasin with water in...

Does anyone know the proper way to do this?

Please help me with this : 1) Water circulates throughout a house in a hotwater heating system. The water is pumped at a speed of .7 m/s through a 4 cm diameter pipe in the basement under a pressure of 3 atm. What is the pressure, to the nearest N/m^2, in a 2 cm pipe on the second floor 5...

What is the function of drain cooler in a feed water heater and is there any reason that it is integral within the heat exchanger but some times it is also placed outside the heater.

Hello, I have a 240v water heater with a machincal timer which went bye-bye after I installed it over 15 years ageo. Those darn plastic gears finnaly broke. So I bought a Intermatic EH40. The line is 240v with 3 wires (white, black, and ground) which matches the water heater wires...

Both are near silent and 100% (in)efficient, but does the convection heater (with the electric coil where heat rises naturally) make the room more stuffy as I've sometimes heard, or perhaps even deplete oxygen?

Hi, I have a fan heater which is rated at 2kW but when we check what it is actually using (voltage x current) it is only using 0.7kW. I am curious as to why this is? This is the fan: http://www.amazon.com/dp/B000306BL4/?tag=pfamazon01-20 Are these fans 100% efficient? Thanks...

2 years, 2 different kinds of water heaters, 2 flooded apartments. Last time I was fortunate enough that all the leakage went out the door, but when it happened two days ago it flooded my bedroom and closet during the night. Yeah, that was fun...I step out of bed onto the carpet...

help me find it out:) hi guyz, i'd like to know where i can buy the SiC heater of the PLD(pulsed laser depositon) system. the one of our lab is broken...in addition, i have some questions about p-type ZnO, i hope someone would help me :) thanx!