How to Choose an Energy-Efficient AC
Choosing an AC isn’t just about staying cool. It’s about optimizing your comfort year-round in the most efficient way, and maintaining energy efficiency is a big part of this. With energy costs and environmental concerns on the rise, choosing the right AC has a bigger impact on your savings and your effect on the world around you than it might seem. In this guide, we’ll walk you through everything you need to know about efficiency ratings, AC unit types, and what features to look for. Let’s jump in!
All About Energy Efficiency Ratings
Seasonal Energy Efficiency Ratio (SEER)
One of the most important efficiency ratings to consider when choosing an air conditioning system is the Seasonal Energy Efficiency Ratio (SEER). The SEER rating measures how efficiently an air conditioner operates over an entire cooling season.
- A higher SEER rating means better efficiency.
- The U.S. Department of Energy requires a minimum 14 SEER unit in most regions.
- Comparing 14 SEER vs. 16 SEER, upgrading to a higher SEER rated unit can lead to noticeable energy savings over time.
Energy Efficiency Ratio (EER)
While SEER is a seasonal measurement, the Energy Efficiency Ratio (EER) provides a snapshot of how efficiently an AC unit operates at peak temperatures.
- A higher EER rating is particularly beneficial in hot climates.
- If you live in Western Washington, EER is important but not as critical as SEER, given the region’s moderate summers.
Types of Energy Efficient Air Conditioners
Central Air Conditioners
Central air conditioners are ideal for whole-home cooling, providing consistent and efficient temperature regulation. They typically offer high SEER ratings, which contribute to long-term energy savings. These systems work best when paired with a programmable thermostat, allowing homeowners to optimize energy use and reduce utility costs.
Ductless Mini-Split Systems
Ductless mini-split systems are an excellent choice for homes without existing ductwork. They are often more energy-efficient than window units, providing targeted cooling without the energy losses associated with ducts. Many models feature inverter AC technology, which allows for variable-speed cooling that adjusts to demand, ultimately lowering energy bills.
Window Units
Window units are a cost-effective cooling solution for single rooms or small spaces. When selecting a window unit, look for models with Energy Star certification, as they meet higher efficiency standards and consume less electricity. Many modern window units also feature smart controls, allowing homeowners to optimize cooling remotely and improve overall energy efficiency.
Portable Air Conditioners
Portable air conditioners provide a convenient cooling option, particularly for spaces where permanent installations are not feasible. However, they are generally less efficient than other AC types, as they often require more energy to cool the same space. These units are best suited for temporary cooling solutions or small rooms where a permanent system is impractical.
Key Features to Look for in an Energy Efficient AC
Inverter Technology
An inverter AC adjusts its speed based on cooling needs rather than running at full power constantly.
Programmable Thermostats and Smart Controls
- Helps regulate temperature automatically.
- Wi-Fi-enabled models allow for remote control.
Variable Speed Compressors
- Instead of cycling on and off like traditional ACs, these run at varying speeds for better efficiency.
- Helps maintain consistent indoor temperatures while reducing energy consumption.
Sizing Your Air Conditioner for Optimal Efficiency
Importance of Proper Sizing
Bigger isn’t always better when it comes to air conditioning systems. An oversized unit will cool too quickly and shut off frequently, while an undersized one will struggle to keep up, leading to higher energy bills.
How to Calculate the Right Size
- Consider square footage, insulation, and ceiling height.
- Use the British Thermal Unit (BTU) rating as a guide.
- Consult with a professional for an accurate load calculation.
Energy Efficiency Certifications and Labels
ENERGY STAR Certification
Energy Star-certified air conditioning units meet strict efficiency guidelines set by the EPA and Department of Energy. These models operate more efficiently, reducing overall energy consumption and lowering cooling costs. On average, Energy Star-certified units use 10-15% less energy than non-certified models, making them a great choice for homeowners looking to save money and minimize environmental impact.
Reading the EnergyGuide Label
The EnergyGuide label helps homeowners compare AC units based on energy efficiency and cost. Found on most units, it provides estimated energy consumption and annual operating expenses.
Additional Tips for Enhancing AC Efficiency
Regular Maintenance
- Clean or replace filters every 1-3 months.
- Schedule professional tune-ups annually.
- Keep outdoor units clear of debris for optimal airflow.
Using Ceiling Fans and Proper Ventilation
- Helps circulate air more efficiently.
- Allows you to set the thermostat a few degrees higher without sacrificing comfort.
Environmental Impact of Energy-Efficient Air Conditioners
Reducing Carbon Footprint
High-efficiency air conditioning units use less electricity, which helps decrease fossil fuel consumption and reduces greenhouse gas emissions. By consuming less power, these systems contribute to a lower environmental impact while keeping homes comfortable. Additionally, a heat pump system can be an excellent alternative for both heating and cooling, offering an energy-efficient solution that minimizes emissions and reliance on traditional HVAC systems.
Choosing Eco-Friendly Refrigerants
When selecting an air conditioning unit, it’s important to consider the type of refrigerant it uses. Look for models that use R-410A or other environmentally friendly refrigerants, as these have a significantly lower impact on the ozone layer compared to older alternatives. Avoid purchasing units that still use R-22, as this refrigerant is being phased out due to its harmful ozone-depleting effects. Choosing an AC unit with an eco-friendly refrigerant ensures compliance with environmental regulations while promoting sustainability.
Finishing Up
Selecting the best energy efficient AC involves more than just picking the first unit you find. Consider efficiency ratings, unit type, size, and advanced features to ensure maximum comfort and savings. With the right choice, you can enjoy a cooler home while keeping energy bills under control.
Why Choose Chehalis Sheet Metal?
At Chehalis Sheet Metal, we’ve been serving Western Washington homeowners for over 60 years. As experts in heating, cooling, roofing, and solar, we provide high-quality installations and expert advice tailored to your home’s needs. Whether you’re looking for a 16 SEER unit, a heat pump, or an efficient air conditioner, our family-owned business is here to help.uality and reliability you can count on.your home.ns it’s time for a new unit to how to choose the right system.d whatever else comes our way. If you’re thinking about a new roof or need a little help with repairs, give us a call.