The Window World Blog

Low Emissive Replacement Windows

We often talk about low-emissive glass (low-E glass) and how it’s the best long-term energy-saving option for your home. But most people don’t know the science behind this smart glass. People often ask us how it can block heat in the summer months, while simultaneously retaining it in the winter. Today, our very own Bill is going to demonstrate how it all works.

Hi, it’s Bill from Window World of Little Rock! Today we’re going to show you a mechanism that demonstrates the benefits of low-E glass or low emissivity body glass. In this box, we have four different types of glass: single pane glass, double pane insulated glass, and two different types of low-E glass. We’re going to use a radiometer, which measures radiant heat, and a 250-watt heat lamp.

Low-Emissive Glass with Argon Gas

The first glass we are demonstrating is low-E glass with argon gas. First, I’m going to turn this 250-watt heat lamp on and put the radiometer right up to the glass. As you can see, the radiometer is actually moving backward. If there were radiant heat coming through the glass, it would make that radiometer spin. Right now, it’s barely moving.

Clear Insulated Glass

We’re going to now try the clear insulated glass, not even a single pane, and roll the radiometer up to the glass and watch it start to spin. What it’s showing you is radiant heat coming through the glass. Glass is a conductor of heat and cold, which comes into your home. 

Low-Emissive Glass

Now we’re going to go back to the low-E glass. I’m going to stop the radiometer and then put it back up to the glass, and now it’s actually rolling backward. Of course, you can’t feel the heat, but the radiometer shows you that the low-E glass is working. 

Single Pane Glass

Next, let’s go to single pane glass. Watch the single pane glass. You can probably feel the heat coming through the camera, can’t you? I sure can. That’s what low emissivity glass does for you, and it will change everything in your home. It will lower your operating costs by at least 30%. It’ll keep you warmer in winter, cooler in the summer, and lower your overall operating costs. Low-E glass is a no-brainer.

If you’re looking for energy-efficient, affordable windows with low-E glass, give us a call today

Read More Posts

Quality Matters: Products Backed by Industry Leaders

At Window World, one of our defining traits is our attention to quality. We want our replacement windows to be the best that they can be, so when you buy a high quality window from us, you know you’re getting an excellent product that will last you for the long haul....

Did You Know That We Do Siding?

Here at Window World, you know us for our quality, affordable replacement windows, but did you know that we also offer vinyl siding? Many homeowners rave about the cost-effectiveness, ease of maintenance, and beauty that come with adding vinyl siding to their homes....

Fall In Love With Our Patio Doors

Patio Doors Save Space Doors typically swing inward, which requires a certain amount of clearance space around the doors. This can affect the way you decorate the area around these doors. With sliding patio doors they do not cut into your space, making the space feel...

Are You Ready For Lower Utility Bills?

Are you ready to pay lower utility bills? Are you ready to feel more comfortable in your home? Schedule a free estimate today! Learn How Window World's Products Help Lower Your Utility Bills https://www.youtube.com/watch?v=WOOxBXbQQoA&feature=youtu.be Take a look...

Are Energy-Efficient Windows Worth It?

A lot of potential customers like the idea of replacing their home’s windows, but they’re not quite sure if the cost of replacement is worth the energy savings. Here at Window World of Little Rock, our windows are not only the most affordable in the industry, but...

Why Energy Efficient Windows Matter

One of the main reasons customers give Window World of Little Rock a call is to make their homes more energy-efficient. Most homeowners don’t realize that outdated windows are probably causing a rise in their electric bills. You will see a 30% or better reduction in...

Low Emissive Replacement Windows

We often talk about low-emissive glass (low-E glass) and how it's the best long-term energy-saving option for your home. But most people don't know the science behind this smart glass. People often ask us how it can block heat in the summer months, while...

Did You Know We Install Siding?

You recognize us for windows, but did you know we also provide siding installation? Our industry-leading vinyl siding products create a thermal barrier around your home, making a comfortable environment that’s as efficient as it is beautiful. Their enduring...

Save Money On Energy Costs With Window World’s SolarZone™ Insulated Glass Package

Did you know that 25-35% of residential heating and cooling energy use is due to heat gain and loss through windows? Energy-efficient, insulated glass windows are important for new and existing homes to reduce energy loss and save money on energy bills. If your...

How To Effectively Clean Your Replacement Windows

Cleaning Your Windows Preserves Their Lifespan Spring is here, and you know what that means: spring cleaning! Cleaning windows may not be your idea of fun, but it's a chore that has to be done in order to get the most out of your replacement windows. If you aren’t...

Our Best-Selling Double-Hung Windows

So you’re thinking about a window upgrade, but you’re not sure what to pick? We understand! That’s why we recommend our double-hung windows for our customers. They happen to be our best-selling product. Take a look at the video below and see one of our installers...

Transform Your House into a Home with New Windows

Customer Testimonial: The Moslers "I bought this house a little less than a year ago, and we've known that there were a lot of things that we wanted to do to update it. One of the biggest needs for the home was the windows. It had a lot of moisture in the windows, and...

Benefits of Replacing Windows in the Winter

When you think about window replacement, you might think that it should be a summer home improvement project. However, there are many benefits to replacing your windows during the winter. According to the U.S. Department of Energy, older windows could account for more...

Window World Has The Best Energy Efficient Windows

We all love the view of the outdoors that windows allow! But with more glass comes more exposure to temperature fluctuations. Window World’s energy-efficient windows specialize in regulating the temperature indoors and helping you save money on your energy costs. Our...

What Will Our Windows Look Like in Your Home?

Are you dreaming of a home that perfectly reflects your style and preferences? What will our windows look like in your home? With our free exterior design tool, turning that dream into reality is easier than ever. Whether you're considering a fresh coat of paint, new...

How To Save Money With Energy-Efficient Windows

Window replacement is a big undertaking, and a lot of homeowners question whether or not the process is worth it. The entire process from order to installation takes around six weeks. We understand the frustrations that can come with any large-scale project like this....

Keep Cooling Costs Down This Summer With Energy-Efficient Windows!

While it might seem like the day will never come, warmer days really are ahead! As we all know, warmer days mean turning up the AC to keep the hot air out! But what about keeping your cool air in? If your windows are older than you are, there’s a good chance that the...

Hot Siding Trends of The Year

Siding Design Trends of 2018 Vinyl siding has become extremely popular within the past couple of years since homeowners are realizing traditional siding materials are prone to a lot of wear and tear. Things like chipping paint, warpings and weather damage can not only...

Let Us

Get To Work For You!

Ready to schedule a free estimate? At Window World of Little Rock, our mission is to help our customers find the right product to suit their needs. We love offering our expertise in selecting the best route for every unique situation.