Swapped out a couple of my old single panes last fall and went with these “fancier” triple-pane windows that are apparently filled with krypton instead of the usual argon. The sales guy made it sound like my living room would turn into a spaceship or something, but honestly, I can’t say I’ve noticed a dramatic difference. Maybe it’s a little quieter? The drafts are definitely gone, which is nice, but I’m not sure if that’s just because they’re new windows in general.
I live in northern Michigan where winters get brutal, so I was hoping for a bit more of a wow factor on the heating bill. It’s down maybe $10-15 a month, which is cool, but hard to say if that’s the krypton or just better insulation overall. Also, those windows weren’t cheap…krypton costs more than argon, and now I keep wondering if I should’ve just stuck with argon and saved the cash. I mean, how much difference can there really be between two invisible gases?
Curious if anyone else has actually compared the two in real life—like, did you notice any big changes in comfort or bills? Or is this one of those things where you only see tiny improvements unless you live somewhere absolutely freezing?
I get where you’re coming from. I swapped out a few windows for triple-pane with argon a couple years back (couldn’t justify the krypton price), and honestly, the biggest difference was just not feeling those cold drafts anymore. My heating bill dropped a bit, but not enough to make me do a double take. From what I read, krypton’s only a big jump over argon if you’ve got super narrow panes—otherwise, it’s more of a marginal gain. At least the living room feels less like an icebox now, but I’m not sure the extra cost would’ve been worth it for me either.
From what I read, krypton’s only a big jump over argon if you’ve got super narrow panes—otherwise, it’s more of a marginal gain.
Yeah, I’ve heard the same about krypton—unless your panes are really thin, it’s not some night-and-day difference over argon. I get what you mean about the drafts being gone making the biggest impact. For me, that “icebox” feeling disappearing was worth way more than the tiny change on my utility bill. Sometimes the comfort upgrade just matters more than the numbers, you know?
I get where you're coming from—comfort is huge, and sometimes the numbers don’t tell the whole story. But I’ve actually noticed a difference with krypton in my place, even though my panes aren’t super narrow. We’re in a pretty harsh climate, and after swapping out old argon units for krypton, the rooms closest to the windows stayed noticeably warmer during cold snaps. It wasn’t dramatic on every bill, but over a couple winters it added up more than I expected. Maybe it depends a bit on house orientation or how exposed your windows are? Not saying it’s always worth the extra cost, but sometimes those “marginal gains” do add up, especially if you’re already planning to upgrade.
Noticing a theme here—folks expect these “premium” gases to be some magic bullet, but it’s rarely that dramatic in real-world use. I’ve handled installs where customers swapped out old leaky windows for triple-panes with krypton, and honestly, the biggest difference always seems to be just having modern, tight windows.
Krypton’s supposed to work better in really narrow air spaces (think triple-panes), but unless you’re dealing with super cold exposure or a ton of glass, the extra insulation isn’t always obvious. I usually tell people: 1) draft-proofing is step one, 2) proper install matters way more than the gas choice, and 3) don’t expect your bill to get cut in half just from the fill.
Out here, I’ve had a few folks say their rooms felt less “chilly by the window” after going with krypton, but they also upgraded frames and seals at the same time. Hard to separate what’s doing what. Personally, I’d go for argon unless you’ve got a very specific reason—or if you’re just curious and want to try it out. Sometimes peace of mind is worth a few bucks, even if the numbers don’t totally back it up.
“the biggest difference always seems to be just having modern, tight windows.”
That’s been my experience, too. I’ve swapped out a bunch of old double-panes for newer triple-panes with both argon and krypton, and honestly, it’s tough to pin down what’s actually making the room feel warmer. Is it the gas, or just the fact that you’re not living with 30-year-old leaky frames anymore?
I get why folks are curious about krypton, especially since it’s marketed as the “upgrade” for narrow gaps. But unless you’re in a spot where every last bit of insulation matters—like a home with a wall of north-facing glass in Minnesota—I’m not sure the difference is worth the upcharge. Have any of you actually measured surface temps before and after? I’ve tried with an IR gun, but results were all over the place.
One thing I do wonder: does anyone regret not going for krypton after a few winters? Or is it more about peace of mind than real-world comfort?
I actually kinda disagree about the “not worth it unless you’re in Minnesota” thing. I’m in the mid-Atlantic, so winters aren’t brutal, but our living room has a huge north-facing window. We did krypton for just that one and left the rest as argon. I swear that room feels less drafty now, even if the temp difference is small. Maybe it’s placebo, or maybe it’s just that the old window was junk, but I don’t regret spending a little extra on that one spot. For the rest, though, probably overkill.
We swapped out the old bay window in our dining area for a krypton-filled unit last fall. I can’t say the temperature is dramatically different, but the drafts are almost gone—used to feel a cold breeze anytime you sat near it. The rest of the house is just standard argon, and honestly, I don’t notice much difference there. Maybe it’s just that big windows facing north make a bigger impact? Either way, for that one spot, the extra cost felt justified. Wouldn’t bother with every window, though—gets pricey fast.
Had a similar experience, actually. We did a krypton-filled slider in our living room—mainly because that window is massive and faces west, so it used to get real drafty in the winter. Like you, I can’t say the room feels much warmer in terms of raw temperature, but the cold air currents are way less noticeable. Before, you’d sit on the couch and feel that chill creeping in around your ankles. Now, it’s pretty much gone.
Rest of our windows are just double-pane with argon, and honestly, the difference isn’t huge except for that big window. I think it’s partly that older frames and bad seals were letting in most of the cold before, so just fixing that helped a ton. Krypton’s nice for big problem spots, but yeah, it adds up quick if you try to do the whole house.
If I had to do it over, I’d still upgrade the main window but not bother with the smaller ones. Sometimes fixing the worst offender is enough... no need to go overboard.
That lines up with what I’ve seen. I put krypton in our big bay window because it was just a cold magnet, but honestly, the smaller windows got the argon treatment and you really can’t tell much difference unless you’re right next to the glass. The biggest improvement came from finally fixing those ancient, leaky frames—funny how much air sneaks in through bad seals. For me, the cost of krypton everywhere just didn’t make sense. If you’ve got one “problem child” window, that’s where it’s worth splurging. Otherwise, argon and good install does most of the heavy lifting.