Tom from SWISCO responded:
October 13, 2016
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Tom from SWISCO responded:
October 14, 2016
The stamp you have, "32 9," is an out dated stamp that no manufacturer uses anymore. The only way at this point to confirm what option is best for you is to weigh your sash. You mentioned that you did and that it's 12.1 pounds. If it is, then I think our 3210 option is the best way to go.
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Tom from SWISCO responded:
October 14, 2016
Oh, I see what you mean. You're saying the window drifted down. When you said the sash didn't hold it's position, I assumed that it was drifting up since the spring strength was stronger than the weight of the sash.
If the 3220 was not strong enough to hold your sash weight up, then I do not think that your sash weighs 12.1 pounds. It is probably heavier. That's the only explanation for why a balance would not be able to keep it up. I would make sure to check the weight again. |