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| I am new this forum but have read many of the postings, thank you to all for the great information. I have decided on using Okna replacement windows for all 20 DH windows in my house which in eastern PA and my question is this.
The upgrade from double pane, low e with argon (.25 U-value) to triple pane, low e on surfaces #2 & #5 with ARGON (.19 U-value)cost an additional $1280 which equates to an additional 12% on the total cost (including installation). Would this be well spent money or are the triple pane overkill for this area. I want to be efficient, but don't want to be wasteful and never recoup the upgrade cost in energy savings. Your opinions are greatly appreciated ! |
Follow-Up Postings:
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- Posted by windowsonwashington (info@windowsonwashington.net) on Wed, Apr 13, 11 at 17:53
| The price you are getting on that project is much more comparable to what would normally be charged for good double pane units. That is very good pricing and you will be well served by that window. I might like to see the Double Pane on the South side of the home to take advantage of some of the passive solar winter heating rays. Tripe pane is a nice option and as long as the rest of the home is tight and insulate, it is a worthwhile investment at that price point. |
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| WOW.. Thanks for help. Are you saying that the price I got($10,700) is higher than normal for the 20 double panes ? But 12% ($1280) for the triple pane upgrade is a good price ? Sorry but I'm confused if you're saying the project is priced well or too high. Thanks again ! |
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- Posted by skydawggy (info@ecostarremodeling.com) on Wed, Apr 13, 11 at 23:48
| That's good pricing on the DP and great pricing on the TP. For $60 more per window for TP, I'd go for it. |
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- Posted by windowsonwashington (info@windowsonwashington.net) on Thu, Apr 14, 11 at 9:23
| +1 to Sky's comments. |
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- Posted by david_cary (My Page) on Tue, Apr 19, 11 at 6:22
| Nice to see that triple pane have come down in price so much. This is likely a cost effective upgrade but you might try to do the math. That math depends greatly on your fuel for heating. If you are using geothermal with low electric rates, your payback maybe a while (beyond life of windows?) I live in NC and our windows are estimated to be about 20% of our heat loss (dp-low-E). Further north, the same windows are a higher percentage as everything else gets upgraded. So I'd venture that your windows (dp) would be 30% of your heat loss. So if you are going to spend $1000 a year to heat the house, $300 is windows. The upgrade would save you roughly $70 a year - or 15 year payback. This all assumes fairly new construction so that the walls and attic are up to current code. If they aren't, then the windows might be a much lower percentage of heat loss. Now if you are using oil and you might be expecting $3000 heating bills - the payback is 5 years. Solar hot water would probably fair a little better (but again depends on your fuel). There are lots of opportunity costs and 15 years isn't exactly quick. If the house has any age to it, extra attic insulation would payback faster. I am getting ready to go from r-40 to r-60 in the attic but that is borderline overkill in my climate (15+yr payback). |
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