Tom from SWISCO responded:
May 8, 2015
Hey, Tim. Is there any way we can see a few pictures of your existing balances? I'm not sure what type you have. Can you also confirm the weight of the sash? That will let us know exactly what strength spring you will require. If it's heavier than usual, I'd rather not guess. Let's start with this information and work from there.
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Paul from SWISCO responded:
May 12, 2015
Thanks for posting. Based on your pictures, I think our S770-28 channel balance is a possible match. Check it out and see if you agree.
You may want to confirm the weight of your sash though. 50 pounds is extraordinarily heavy, even for impact glass windows. Your current spring rating is "27C," which can carry a window sash weight of 18 through 23 pounds. Since your windows cannot stay up, I would wager that this is too weak, but I think 50 pounds may be over-estimating. I highly recommend that you weigh your sash on a scale to confirm. |
Paul from SWISCO responded:
May 12, 2015
Aha, that makes more sense. A 27G version of this balance can carry a sash that weighs 36 through 40 pounds. That seems more reasonable for the kind of windows you have. It's possible they just wore down with age, then. This kind of balance has a lifespan of roughly 5-10 years.
If you want, we can custom make this for you. Check out this Custom Channel Balance Request Form I've started for you based on your specifications and fill out the blank fields. One of our representatives will get back to you with a price quote and an item to add to your cart. That said, I highly recommend confirming your sash weight, just in case. |