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Tom from SWISCO responded:
March 19, 2020
Hello! We can help with this balance, but the weight you gave me is extremely heavy for a balance of this size. Your old stamp, 17E, corresponds to our 1750 option, which is way too weak to hold up your sash. Did you ever find your old balances didn't do their job properly? Was the window always hard to open, or did it even drift close by itself? We can supply a balance in this size for a 34 pound sash but I'd like you to triple check that detail. Such a strength would have to be a special order. If we do cross that bridge, we'll also need to know how many you need so we can set the quantity. |
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Tom from SWISCO responded:
March 19, 2020
If these windows have always had trouble opening then that's definitely the explanation. Whoever installed these balances to begin with put in models that were far too weak to support the sashes. To clarify, the 17 through 20 pound rating of the 1750 stamp is not split in half. It's rated assuming both balances are carrying that load. This sounds pretty cut and dry then. Please give us a little time to confirm the availability of these extra strong springs and I'll get back to you ASAP. The strength you need will have to be a special order but I think we can go forward with it. Just keep in mind that special order balances cannot be returned for a refund. You may want to check to be sure that you do have the Series 351 (19-002 top and 15-002 bottom). |
The client said that these windows have always had trouble with staying open. So the 17-20lbs rating on the 1750 is for the total weight of the sash, not per side ?
I would need them for 18 windows, so 36 in total. The window are not that old, aluminum double pane that are wide but not that tall, so I guess that's why the balances are under sprung. Any help to avoid replacing a whole back of windows would be great. The windows are 48" wide x 20" tall.
Custom Manufacturing would still come out cheaper than full replacement. I added a pic of the units , only the lower one are operable.
Thank !
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Tom from SWISCO responded:
March 20, 2020
Oh oops, I'm sorry! That was a typo on my part. You're right, it's a 19-002. I'll email you an order link and price quote right now for 36 special balances with a 17DS34 stamp. These springs will be specifically calibrated for a sash that weighs 34 pounds, assuming both balances are sharing the load. Please let me know if you had any questions! |
