The Okna 800 Series or Enviro-Star is billed as their “top of the line” offering. Typically we’re a little hesitant to believe all of the top of the line hype that typically accompanies a top of the line window, but let’s take a look at what the Okna 800 Enviro-Star has to offer.
First, the Okna 800 window uses a slightly thicker frame than the Okna 500 series that we reviewed earlier. The thicker frame isn’t good or bad, but it does reduce the glass area which reduces the amount of light that can get through the window.
One design element that we like on the 800 series as compared to the 500 series is the design of the frame on the exterior. While it’s still a little busy, it’s much less busy than the less expensive Okna 500.
One feature that sounds neat, but appears to have absolutely no benefit is the magnetic seal at the bottom. As you can see in the diagram below there is a magnetic seal at the bottom of the Okna 800 window. That sounds like a pretty slick feature. After all it works for your refrigerator why wouldn’t it work for a window.
So it sounds cool and it makes sense, but it turns out it doesn’t do much for you. The Okna 800 series has a 0.01 air infiltration rating according to their website. The Okna 500 series without the magnetic seal has a rating 0.02. So it’s supposed to make the window seal tighter, but unfortunately it doesn’t make much of a difference. At least it sounds cool 😉
Beyond that there are several other design elements that definitely make this a next generation product. The mortised sill dam (shown above) and the fully welded sloped sill (shown below) are important features that contribute to the overall performance. Okna certainly isn’t the only manufacturer to include these features, but older designs typically do not have them.
The last product pic we’ll show you is the lift rail. This is a little unusual and frankly I’m not a huge fan. It’s certainly a style issue so it’s as subjective as anything else. This lift rail (shown below) stands out a little too much in my opinion and has the potential to break or snap off in the future. If you like the look then go for it, but I don’t think it’s for me.
So, what’s the price of an Okna 800?
These windows are typically sold at a higher price due to the “top of the line” type sales pitch. At the end of the day it’s a fine product with several nice features, but there is nothing about this window that you can’t find in several other models. When you see companies trying to sell this product for $500 or more for a basic white window you can be sure that’s a little on the high side.
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