Which approach is more efficient and fast for warming up the room with a fan heater?

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A proportional temperature controller will accomplish this task. They are used in industry to do exactly this.

Here is an excerpt from Omega.com:

Proportional Control

Proportional controls are designed to eliminate the cycling associated with on-off control. A proportional controller decreases the average power supplied to the heater as the temperature approaches setpoint. This has the effect of slowing down the heater so that it will not overshoot the setpoint, but will approach the setpoint and maintain a stable temperature.

In order to accomplish this you need a proportional controlled gas valve for a gas heater or solid state relays to control an electric...

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Electric space heaters break down into two basic types: radiant or convection. Radiant models?such as ceramic and quartz portables, under-floor systems, cove heaters and ceiling panels?emit infrared radiation that heats up objects and people directly within their line of sight. They're designed for ultra-quick heating and are best for: Heating one or two people,l arge rooms where you don't want to heat the entire space, open rooms without a lot of furniture or obstacles between you and the heater, spot heating and sporadic use, workshops and home offices where you mostly want warmth for yourself while you're at your desk or workbench, or a TV room where the occupants are sitting in one area.

Convection models include oil-filled radiators, electric baseboard and toe-kick heaters, and flat panel wall-mounted units that warm the air around the heater and rely on the room's air circulation to heat the room. Fan-forced convection models are the most popular type of supplemental...

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A Japanese kerosene fan heater that burns

kerosene

for fuel. It contains an electric fan and computer controls.

A fan heater is a heater that works by using a fan to pass air over a heat source (e.g. a heating element). This heats up the air, which then leaves the heater, warming up the surrounding room. They can heat an enclosed space such as a room faster than a heater without fan, but, like any fan, create audible noise.

Cost and efficiency[edit]

Electric fan heaters can be less expensive to buy than other heaters due to simple construction. The fan carries heat away from the device, which can be made smaller without overheating. The relatively small amount of electricity used to operate the fan is partly converted to additional heat, so that efficiency is not a problem. All heaters without external ventilation are nearly 100% efficient, meaning that almost all energy input goes into the room as heat. However, if the efficiency of generating the...

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For large room I would recommend DeLonghi

The DeLonghi EW7507EB Oil-FIlled Radiator automatically regulates the temperature by cycling between high, medium, and low. This maintains a constant comfort level, while saving energy. The double function timer allows you to program two different times, so you can set it for the morning and night.

Features

Provides fast and flexible heating whether in the bedroom, living room or office.Timer with Double FunctionSaves energy by automatically regulating the temperature. It cycles between high, medium and low to maintain a constant comfort level.Patented Smart Snap WheelsThree Heat Settings and Adjustable Thermostat

For small room i would recommend Lasko

It is much smaller but stronger than I expect. But if you are going to buy one, you should think about the size of room where you will use. I think this is good for your small office room, not for your home.

I use it in my bedroom which is rather small and...

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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 reasons.

What I have instead is a space heater and a box fan. I have been placing the fan directly behind (In front of?) the space heater and using that to quickly warm my room so I don't wake up as a popsicle. The space heater consists of 7 large metal fins evenly spaced to encourage airflow.

What impact does the placement of the fan have on the ambient temperature of the room? Am I wasting electricity for no reason by having the fan and the space heater running in tandem? Is placing the fan by the space heater optimal, or would it be better situated in a position where it can generate the maximum air circulation in my small, cube-like room?

Any help would be...

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If this question has been playing on your mind, read on to find an answer.

One question which a lot of people ask about their heating is: ‘is it cheaper and more energy-efficient to heat the whole house, or just the room I’m using?’

For example, if you mainly use your living room during the day, should you have the central heating off and just heat that room with a fire or heater?

The main method you use to heat your home has the biggest influence on whether it’s worth heating a room individually or not, but the size of the room in question – compared to the size of your whole house – is also key.

If you have a modern boiler

If you have a modern gas or oil central heating system and a well insulated home, it’s probably best to use your central heating to heat most of your home, rather than just heating one room individually.

Features like a balanced flue - which draws in air from outside to feed the burning process, as well as expelling...

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Put hot water bottle in your bed.

One of the worst feelings in the world is navigating an ice-cold room in your pajamas only to slide into a sub-zero bed. While your bed should heat up once you're in it, you can avoid this awful feeling by heating it up

before

you get in. A hot water bottle is one great way to do this — simply fill it with steaming water, close the lid tight, and leave it in the center of your bed under the covers 15 minutes before you go to bed.. As it cools, it will dissipate heat into your bed, leaving it nice and toasty when you get in.

Medical water bottles are available at many pharmacies for around $15 or less. If you're using a microwave to heat your water, be sure to use a microwave-safe container (like a glass or ceramic...
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Room heaters are used to heat a small space and are normally portable or fitted to a wall. Most room heaters use gas or electricity.


Room heaters are convenient appliances that provide focused and localised heat which is particularly suitable in a room for people that are elderly, ill or with limited mobility. But they can be expensive.

[NB if you're looking for our information on night storage heaters, click here.]

They consume a lot of gas or electricity if used to heat up a space quickly, and are likely to cost a lot more than a central heating system.

Ideally, room heaters should only be used as a secondary or supplementary source of heat. Even then, you should use the right heater for the space you want to heat, and carefully control the temperature and the time you have the heater on. Heaters that have these controls are often cheaper to run.

What kind of room heater?

When you’re deciding on what room heater to use, consider...

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Radiant heater

A modern interpretation of the classic ‘electric fire’ design, this variety of heater works by producing infra-red light at high intensity using one or more electrically powered elements. The heater directly warms up the people or objects it is pointed at, and not the air in the room, so it maintains its efficiency in badly insulated or draughty spaces.

Convection heater

By contrast, this type of heater uses an electric element to warm the air passing through it. As warm air rises out of the top of the appliance, it draws cool air into the heater from beneath. This is then warmed and rises out of the heater, and the convection cycle continues. As with radiant heaters, this is a very quiet unit to use.

Oil-fin column heater

Also known as portable radiators, these heaters warm a space using both convection and by radiating warmth from their hot fins. An electric element is used to heat oil inside the fins, which heat air passing over...

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With winter fast approaching, many people — myself included — are thinking about ways to not only keep the house warm, but also save a few bucks while doing so. The projected tab for heating your home this winter (in places that need heating) is over $2,200. That’s not chump change.

Beyond just saving money, it’s simply not always easy to keep a home warm if it’s older and doesn’t have very good insulation. In our 1952 house, keeping the basement warm (where our entertainment center is located) is a tall task. Utilizing the tips below will not only save money, but will make sure you’re warm and comfortable all winter long.

1. Install a programmable thermostat. This will keep your bill low, and your efficiency high. Instead of having to manually fiddle with your thermostat every time you leave the house or every time you come back home, This Old House recommends programming your thermostat for the following temps/times during the week if your house is empty...

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Ok this problem started to occur couple of years ago, but i thought it was because my pc back then was really, really old, and i was really pushing it to the limit.

But now, i have a new config (in my sig.), and my PC is still overheating my whole room (though i haven't changed my power supply and case).

The case is pretty damaged and the side has to be open since it can't slide in.

Also, it only has 3 fans (one that comes with psu, the one on the gpu, and one on cpu).

First of all, i game, a lot. First i thought it's my graphics card. I put it out this morning and connected to integrated to see if any improvement would happen, but my room is still so hot during the days.

My processor is merely 3 months old and the thermal paste is also new so i guess processor isn't doing the heating?

So, whats the problem? Should i buy a new case with, lets say, 4-5 fans? I was planning on getting the Raidmax Vortex v4 (google it).

All of my...

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Space heaters are a popular choice when it comes to adding supplemental heat to your home or creating some warmth in a garage or workspace that would otherwise be too cold to use in the winter months.

When you buy your space heater, it is important to know whether or not it will be energy efficient when you use it or if it will be a waste of money for one reason or another.

Space heaters that are inadequate will result in a waste of energy as the heater will need to be turned on for longer and even then, it may still never heat the room. On the other hand, if the space heater is so powerful that you have to open the windows to let some air in, this may again be uneconomical and inefficient.

Check out these reviews and our helpful buying guide so that you can find the most energy efficient space heater for your needs.

Best Energy Efficient Space Heaters

Duraflame Maxwell Electric Stove with Heater

PRICE : $$$$

Watts: 1500

...
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We sized up various heating devices to determine which will keep you the most cosy for the least cash

Last Updated: 15 May 2017

One of the first things we Capetonians do when the weather starts to turn a little nippy is hauling out the old heater – it’s a sure-fire way to defrost those icy fingers and toes quickly and conveniently. The only issue is that it can also be an uber expensive option. According to Eskom, domestic space heaters can account for up to 16% of your electricity bill, so if you’re going to use one (and let’s be honest, no one’s willing to give theirs up), it’s important to choose the most energy-efficient of the lot and to employ it in the right contexts in order to bring down costs.

To help you save some dough this drizzly season, we chatted to the folks at Eskom and, with their help, put together a comparison below that outlines various heating options and the pros and cons of each. This way, you should be able to make a safe,...

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Illustration: People gathering around a tile stove. Die Bauern und die Zeitung, a painting by Albert Anker, 1867.

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Most modern heating systems are primarily based on the heating of air. This seems an obvious choice, but there are far worthier alternatives. There are three types of (sensible) heat transfer: convection (the heating of air), conduction (heating through physical contact), and radiation (heating through electromagnetic waves).

The old way of warming was based upon radiation and conduction, which are more energy-efficient than convection. While convection implies the warming of each cubic centimetre of air in a space in order to keep people comfortable, radiation...

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15.1. If the heat transfer capacity in a heat exchanger is dropping, the following action should be taken:a). Clean the heat transfer surface16.1. Chlorine is used in the cooling water system to:a). Prevent biological growth17.1. To evaluate the condition of a heat exchanger the following measurements should be recorded:a). In and outlet temperatures, and flow rates for both media18.1. In a refrigeration system, the condenser cooling water regulating valve is directly controlled bythe:a). Compressor discharge pressure19.1. Water hammer is a shortblasting pressure peak travelling along the pipe. How can it be avoided ina cooling water system?a). Operate valves gradually20.1. Erosive tube failure in a heat exchanger could be the result of:a). Excessive cooling water velocity21.1. Reduced capacity accompanied by vibration and noise at the suction of a centrifugal pump resultsfrom the action of vapor pockets in the fluid being pumped caused by:a). Cavitation22.1. The heat required to...

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OK, so I recently ran across another fantastic heater, and I've decided to add a bonus review, because this is an exciting product. The Cozy-Heater is a fantastic and well-designed heater that solves the problem of "it's effective, but ugly." These heaters look great!

They have the look of a modern art panel on your wall, and best of all they're not underfoot, so there's no risk of tipping over. Most visitors won't even realize they are heaters at all.

These heaters are similar to mica panel heaters in that they don't include a fan, instead relying on convection to gradually heat up a room. They're a little bit unorthodox in that they are available in both 400 and 600 watts, quite a bit less energy than a lot of other heaters on full blast. One 600-watt model is rated to heat a 100 square foot room on its own.

The advantage here is clear: they are extremely energy efficient. You can run two Cozy-Heater wall panels at once, using less energy than a 1500 Watt...

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For millions of years, the earth’s climate has naturally fluctuated, changing up from warmer periods to ice ages. However, within the past century, the earth’s temperature has increased unusually fast; 1.2 to 1.5 degrees Fahrenheit to be exact. According to research studies, human activities are hugely contributing to this unusual spike in temperatures; a phenomenon commonly referred to as global warming.

The proliferation of fossil fuels such as coal, oil and natural gas triggered by the onset of industrial revolution are the main contributors to global warming. Power plants, factories, and cars have been burning these fossils fuels since the industrial age, releasing massive amounts of greenhouse gasses. Greenhouse gasses contribute to a natural phenomenon called greenhouse effect.

Greenhouse Effect

To understand global warming, it would be beneficial to know what greenhouse effect is. The atmosphere is composed of a few gasses such as carbon...

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Why are the smallest available American furnaces rated at about 40,000 Btuh? Back in the 1960s, a house in a cold climate may have needed such a powerful furnace — or even one rated at 60,000 or 80,000 Btuh. But these days, many new homes have design heating loads that are much smaller — as low as 10,000 to 20,000 Btuh. Over the past 30 years, building envelopes have become tighter and better insulated, but U.S. furnace manufacturers haven’t kept up with the times. For mysterious reasons, they don’t offer furnaces that are small enough for today’s energy-conscious builders.

I wrote about this frustrating problem in a 2009 article, “Heating a Tight, Well-Insulated House.” In the four years since the article was written, furnace manufacturers haven’t budged; their smallest models are still twice as big as most energy-efficient builders need.

John Straube outlines the problem

John Straube is a professor of building envelope science at the University of Waterloo...

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