|
Sun, Oct 31, 10 at 19:40
| watched a home show this weekend. they walked thru replacing windows on a 20yr old house. house has 6" insulated walls FYI. probably built to fairly recent standards. tech said new windows would lower heat bill by 40% so they would pay for themselves in 2/1-2 years. if heat bill is 1000/yr and 15 new windows is 15k installed, how does that math add up? |
Follow-Up Postings:
|
| It doesn't. Ask this question in the windows forum and you will should get some interesting answers from some very professional and knowledgeable window folks. |
|
| sorry. i thought it would be an energy question. i see forums for heating, windows, remodeling, and so on. figured most home energy folks would know a lot about ways to improve house energy use thru improvements like better windows. |
|
- Posted by jaysgarden (My Page) on Wed, Dec 29, 10 at 12:18
| When I had a local window company come out for an estimate I was ready with last winter heating gas bills($800 for November thru April) Salesperson said new windows will save 40%. I pulled out gas bills from folder and showed I spent $800 last winter season. Providing we keep the thermostat at 68 and have a similar winter season I asked if he could guaranty this seasons bills would be no more than $480. His short answer was they can't make that kind of guaranty but can only suggest the savings. |
|
| you can not, its impossible. The difference bewteen a standard low E double pane and say a triple pane filled window is just a couple R, and the u is anywhere from .05-.08 lower. It really comes down then to air infiltration and the install. %5-10 savings is even a big stretch. Also keep in mind they compare those savings to houses that keep the t stats at 90 and have all the windows open ;) |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Renewable Energy Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.