How much electricity is my AC unit using when it's on "fan"? September 28, 2008   Subscribe Does my window air conditioner use just as much electricity on the "fan" setting as it does on the "cool" setting?How many watts does a 5000-BTU air conditioner use? The number of watts a 5,000-BTU air conditioner uses depends on the number of amps it has and how many volts an outlet has. Most 5,000-BTU air conditioners use 5 amps, and when plugged into a 110-volt outlet, the unit uses 550 watts. How many amps does the air conditioner in a portable camper use? How much electricity does a Pinguino air conditioner use? How many watts does an air conditioner use? Window-unit air conditioners typically have a range between 5,000 and 18,000 BTUs, as of 2014. BTU stands for "British Thermal Unit." The more BTUs an air conditioner has, the more powerful it is. Taking the square footage of a room and multiplying it by 35 gives an approximate amount of needed BTUs. Window-unit air conditioners were first made available for sale in 1935 and were designed by engineers from Chrysler Motors.

What is a Trane condensing unit? A condensing unit is a system that works with a residential or commercial air conditioner to cool the air through the use of Earth-cooled air, water-cooled... What is a vertical air conditioner? A vertical air conditioner is an air conditioner that features components configured vertically and is designed for use in tall windows where a horizontal ...problems with unit cells How can you compare air conditioning models?how does an home ac unit work Comparison points for air conditioner units include the BTU rating, energy efficiency, ease of use, price and special features, such as adjustable air flow...central ac units installation cost How do you troubleshoot an air conditioner thermostat?

To troubleshoot an air conditioner thermostat, identify the type of thermostat that is in use, check that the unit is receiving power and ensure the unit i... What are some of the electric options for PUCO's Apples to Apples? What is the weather like at cold and warm air fronts? What are the best routers for use in a large home? Why should you have your air vents cleaned regularly? Are infrared heaters more energy efficient than regular heaters?People love their fans. They love to set them on timers, to schedule them to come on in the afternoons, to circulate air to keep the house from getting stuffy. We felt the full force of that love last week when we released Advanced Fan Control, a feature that can do all of the above. Customers have already started using it. Many used to set Nest’s fan to Always On to bring cool air upstairs in summer or just keep air fresh, then they’d go to bed or leave the house and forget to turn it off. Now homeowners can schedule the fan to run from 6-11 p.m. or 8-10 a.m. and forget about it.

It’s almost like having an air conditioner. Advanced Fan Control is proving to be one of our most popular new features—the love for fans is ubiquitous. But so is the misinformation. With all this talk about fans, we’re hearing from more and more customers who’ve been told it’s energy efficient to keep the fan on all the time, 24 hours a day. Whenever the topic is brought up, it’s a debate. Leaving the fan on seems to make sense, after all, especially in summer. If the fan can keep things from getting stuffy, you’ll use your energy-hog of an air conditioner less, and less AC will always save energy. Turns out, it could cost you hundreds of dollars a year. While using the fan instead of the air conditioner really is energy efficient, leaving it on all the time usually isn’t. The average air conditioner has a 500 watt fan, which can use about as much energy over the course of a year as a refrigerator. The costs of running it 24/7 quickly add up. Newer systems have fans that use less energy, but keeping them on all day can cause other problems.

In the summer, the ducts that run through your attic or close to your walls can heat up, filling with warm air. Without the AC to cool it down, the fan just blows hot air into your house. You end up running the AC more, not less, to counteract all that extra heat. Hot ducts can be a problem even if you don’t have the fan running all the time—you may be cool and comfortable in your bedroom, then when you turn on the fan on for the night, you fill the room with hot, stale air. The fan can giveth and taketh away. That’s why Advanced Fan Control gives you a few different ways to control the fan, so you can find what works for your home. For those who want to circulate the air, we added an option that lets you run the fan for 15, 30 or 45 minutes every hour. You get the comfort benefits of a fan blowing all the time, but significantly reduce the fan’s actual runtime. For Nesters who want the fan on for a particular period of time - while they’re asleep, for example, or just in the afternoon when everyone comes home—we’ve created a simple scheduler and a timer.

You can turn on the fan exactly when it’s most efficient—when it replaces air conditioning—and it’ll automatically turn off when you tell it to. The fan deserves all the love it gets—it can make a huge difference in your comfort and your energy bill. But as with all things wonderful and beloved—chocolate, Christmas, chocolate—you can get too much of a good thing. This post is part of our HVAC 101 series about how to make the most of your heating and cooling system. Previously we covered finding holes in your ducts and insulation.It’s peak summer, and one thing that worries most people is: electricity consumption by air conditioners. No wonder, while buying air conditioner, people look for the most energy efficient ones, as air conditioners can bloat the electricity bills quite easily.  Although buying an efficient AC does help, there are more things that impact electricity consumption of an air conditioner while one uses it. While going through an interesting research paper on IIT Madras website we stumbled upon this interesting concept of looking at what impacts electricity consumption in air conditioners, which resulted in this article.

Listed below are things that impact electricity consumption: All ACs are rated in watts, but they do not consume the same all the time. Most 1.5 Ton ACs are rated for about 1.5 kW to 2 kW. But their consumption varies in different settings. The job of an AC is to remove heat and humidity from and enclosed space and it will consume just that much amount of electricity that is required to do so (plus or minus delta based on AC sizing). Which means a 1.5 ton AC if put in a 120 sq ft room will consume different amount of electricity in one hour than a similar AC put in 150 sq ft room in the same location (and in similar conditions). This is because heat will be more in 150 sq ft room and thus it will take extra electricity to remove it. Some cities are hot; some are humid and some cold. An air conditioner does 2 things: cool the air and remove the humidity. If a city is hot, most of the electricity is consumed to bring down the temperature. But some cities are humid but not very hot (costal regions) and because the switching of the compressor depends on temperature.

So a 1.5-ton AC in a similar setup in 2 cities will consume different amount of electricity because the temperatures are different. The consumption will be less in the city with lower temperature. This also brings up a point that the tonnage of AC required for a room varies across cities. A city that is more humid does not require much cooling but needs more of humidity removal. Humidity removal depends on the time for which compressor runs. If the AC is oversized, compressor will run in short cycles and thus will not be able to remove humidity effectively. Thus it makes sense to buy smaller ACs for a humid place. On the whole sizing of air conditioner is important. From colors in the room, we don’t just mean the color of the walls. All dark colors absorb heat. So if your curtains are dark, they do not help. If your walls are dark they absorb heat. Even if you the cloths you are wearing in the room are dark, they absorb heat and will take more time to cool. If everyone in the room is wearing dark jeans!

it means your AC is working harder. Most of these things are unavoidable, but some of it might help if you are aware of it. Recently a friend called us up regarding electricity bills in his coaching classes. On evaluation we realized that he had 2×2 ton ACs in a small room of 150 sq. ft. and both had to be kept on when the classes were on. A class full of 40 kids had so much heat that it needed so much cooling. Human body emits heat based on its metabolic rate. Thus more the number of people, more is the heat in a room and thus more cooling is required. This if more people are expected in a room, more tonnage is required to cool the room. We often observe that our laptops or computers become after long operation. Even mobile phones behave the same way. All electronic and electrical appliances emit heat that will be cooled if Air Conditioner is turned on. Even bulbs and lights emit heat along with light (more on it on our article: ). Thus if you put a lot of lights in a room, the room will need more air conditioning.

Thus using lesser lights will have double benefit. A warehouse full of material typically needs a lot of air conditioning, because every object kept in the space needs cooling. Every solid object is a conductor of heat and thus more the number of things in a space, more is the cooling required. Keeping a room organized thus makes much more sense not just for aesthetic beauty of a room, but also for air conditioner’s electricity consumption. Keeping things in closed almirahs can thus reduce some electricity used by an air conditioner. The walls also absorb heat and thus insulation of walls is important. And now a few things that we have already covered in previous articles: In our article on Ideal Air Conditioner temperature for electricity savings we wrote that the electricity consumption of air conditioners depends on the thermostat temperature. The lower you keep the air conditioner temperature; higher will be the electricity consumption. In point 1 we talked about size of the room impacts electricity consumption.