A portable indoor air conditioner is an excellent way of keeping a room without windows crisp and fresh. A portable air conditioner works similarly to a fan but produces much colder air.

LG 5,000 BTU LW5016

Called the evaLight, it’s very similar to its newer, more powerful sibling, but has a bit less cooling power (1200 BTU), and can only cool about 32 square feet. It’s also a touch smaller, measuring 6.87 × 6.70 × 6. 69 inches, and is just under three pounds without water.

Tonnage ratings are typically expressed in increments of . 5 tons, so residential air conditioners are usually rated as 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5 ton units. It should be noted that there is a distinct difference between BTU and BTUh.

((House square footage times 30, divided by 12,000) – 1.0) = Required Tonnage.

1. 1,500 X 30 = 45,000.
2. 45,000 / 12,000 = 3.75.
3. 3.75 – 1.0 = 2.75 So you’d need a 2.5 or a 3-ton sized central air conditioning unit.

Find your electrical breaker box and turn off the switch that controls power to your air conditioner to start the thawing process on the coils, which could take up to 24 hours. You can also simply, turn off the system and turn on the blower to help thaw the evaporator coils.

Ways To Make Your Air Conditioner Work More Efficiently

1. Schedule a maintenance check–up. A tune-up of your cooling system will ensure that it is working at peak performance and efficiency.
2. Leave the thermostat alone.
3. Keep the curtains closed.
4. Use the dehumidifier.
5. Keep your air conditioner out of the sun.
6. Save chores for the right time.

When temperatures climb up to the upper-90s and higher, it may seem like it’s too hot for your home AC to work. Suppose, however, you notice leaks or ice on an outdoor unit, or your AC can’t keep the indoor temperature within 15 degrees of the outdoor temperature. In cases like those, you may have an issue.

On hot days, that means your AC unit needs to work doubly hard. Not only is there more heat coming into your home (i.e. sun through the windows, air through seams in windows and doors), which it needs to remove, but also the air outdoors is hotter, which makes it harder for your AC unit to reject the heat.

A residential AC can lower the indoor temperature a max of 20°F. The heat transfer capacity of an air conditioner can remove enough heat from a house to drop the temperature by 20°F.

A properly functioning central A/C unit should be able to cool a moderate, four-bedroom home by 10 degrees Fahrenheit in three hours. Although the cooling power of your A/C also depends on the power, size, and age of your unit, your home should be noticeable cooler within a few hours.

Your air conditioner would cool your air down to about 75 degrees, but it might never be able to lower it all the way down to 72. When this happens, your air conditioner will run constantly until your home’s air cools down and your system is able to bring your home’s temperature down to 72 degrees.

By setting your thermostat to no more than 20 degrees below the outside temperature, you can save on energy costs and help give your AC a break. The next time it’s hot and muggy outside, appreciate that your AC is doing its best to keep you a comfortable 20 degrees cooler.

Answer: You can— and should— run your A/C and ceiling fan together. Doing so can help lower your cooling costs each month, but only if you’re using them right.

It may seem like a waste of energy to turn your A/C on and off, but doing so actually saves you a fair amount of money, Amann says. “Air-conditioning systems run most efficiently when they’re running at full speed,” she explains.

Reducing your home’s temperature lower, such as to 72 degrees, could increase your cooling costs by as much as 47 percent. And when it’s hot, don’t set the air conditioner at a much lower temperature. While you may think that makes the unit work faster, in actuality it doesn’t help cool the room any quicker.

A general recommendation is that the optimal temperature for sleeping is between 60⁰ and 67⁰ F, regardless of the season outside.

Best AC Temperature for Sleeping The best temperature for sleeping in summer is said to be between 60° and 67°F. Opening the windows while you sleep is a good solution if you live in an area that cools down overnight.