Stamp 2850 balances?
A home owner from California says:
May 26, 2009
Are heavier duty 29 inch channel balances available from Swisco. I have ordered online from Swisco and was very satified. New E2R double glazed windows are heavier than standard double glazed -hence the need.
Donna from SWISCO responded:
May 27, 2009
Yes, 2850 stamp option is available at SWISCO.
2850 will carry a window sash weight range of 28 through 32 pounds.
This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.