Posted by on Mar 28, 2021 in Air Conditioning Repair | Comments Off on What You Don’t Know About the Effectiveness of Portable Air Conditioners

What You Don’t Know About the Effectiveness of Portable Air Conditioners

In cases where the central air system is inefficient or a window air conditioner is impractical or forbidden, portable air conditioners are a convenient way to provide supplementary or primary cooling. The compact version, unlike a window air conditioner, has built-in versatility for versatile installation and convenient off-season storage.
However, comparing the performance of portable air conditioners can be difficult because they are not subject to Energy Star standards (like small space heaters), and the efficiency information given by the manufacturer or retailer is not always reliable.Do you want to learn more? find out here

1. On portable air conditioners, don’t look for the Energy Star name.
The Department of Energy reports on their website that they do not currently provide Energy Star ratings on portable air conditioners for undisclosed reasons.

2. Instead, use the EER, but be alert.
Although Energy Star ratings are not available for portable air conditioners, the Energy Efficiency Ratio (EER), which measures how many BTUs per hour are used for each watt of power drawn, is the next best measure of energy efficiency. A ranking of 10 or higher on the EER scale is considered above average.
The EER number is normally found in the product description or specifications, but it is often incorrect even when it is visible. Human error is the most likely cause of this oversight, since the EER number is often under-stated as well as over-stated across a wide range of brand names.
However, the EER of any portable air conditioner can be easily determined by dividing the number of BTUs by the wattage specified in the product’s specifications.
The Whynter 14,000 BTU dual hose portable air conditioner, for example, uses 1250 watts, resulting in an EER of 11.2 (14,000/1250 = 11.2). Also, if the EER isn’t specified in the product description, you can easily calculate it using this formula.

3. How Much Does It Cost to Operate a Portable Air Conditioner?
Portable air conditioners are surprisingly inexpensive to run, with hourly costs ranging from 10 cents per hour for small 8,000 BTU models to 15-17 cents per hour for large 14,000 BTU capacity models (based on a rate of 12 cents per kWh).
Although the cost of operation is expressed in the EER (higher EER = less watts per BTUs), knowing how much any given device would cost to operate can’t hurt.
You can work out the cost to operate just about every electric appliance using this basic formula: Watts x.001 x Cents/kWh = Cost To Run Per Hour if you know how much the local energy provider charges per kWh (it’s on your electric bill) and the appliance’s wattage (from the product specs).
For a 1100 watt portable AC operating at 12 cents per kWh, the formula will be 1100 x.001 x.12 =.132, or 13 cents per hour rounded off.