Channel balance option

A quick learner from Fort Myers FL says:
I am replacing a channel balance marked 2919. What option/strength should it be replaced with? Richard
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Tom from SWISCO responded:

I'm not sure! That's not a stamp I'm familiar with. Can you tell me the exact weight of your sash?

A quick learner from Fort Myers FL says:
I cannot tell you the exact weight but I can say I ordered a 2920 thinking it was close to 2919 and installed it and it will open the window fine but is not strong enough to keep the window open. When I removed the window I would guess its weight to be about 20 pounds. Photo attached. RP
Thumbnail of the uploaded file named 21ABE655-160F-48B2-9AE9-FA8610BD1EA1.jpeg
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Casey from SWISCO responded:

It seems like you'll need custom-made balances to replace the originals since your photo appears to be showing our 15-050 balance shoe, which does not come with any of our stock assemblies. 

To move forward, we will need to see a photo of the attachment on the opposite end of the metal channel, as well as know the exact weight of your window sash. Also, please confirm the number of replacement balances you need. Thank you!

A quick learner from Fort Myers FL says:

I bought 4 30" series 395 Channel Balance, S395-30 Option 2920. We also bought sash carrier, 15/16, 18-185. My friend and I installed one set in one window. Everything worked perfectly, both ends fit the space as expected, except the spring won't hold the window open. The suspect window is never opened so as long as I could open and close it, I was OK with the status quo.

My original question was sent so I could buy the correct option/strength for future use in other windows where either the Sash Carrier or the channel balance might break. These hurricane windows are a breed among themselves.

I would take out the suspect window and weigh it except I have to remove all the surrounding molding to get it out! Hence why I am OK with the status quo.

I accept your recommendation of a custom-made channel balance but I think I will wait until the next window channel balance or Sash Carrier breaks. At that time I would have to remove that window and possibly could get the accurate weight and maybe we would find a stock option that would negate a custom-made product.

You have been very helpful in my understanding of channel balances and other window parts. I think that is the whole story, sorry it was so long. RP

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Tom from SWISCO responded:

Your analysis is perfectly logical to me. If you were able to get the Series 395 to work, then that's definitely an option to consider to. We just tend to play it safe and stick with whatever was installed to begin with. 

Either way, we are here to help you whenever you want to proceed, regardless of which direction you want to go with.

15-050 : Channel Balance Shoe
Channel Balance Shoe
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$1.06
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S395-30 : 30
30" Series 395 Channel Balance
S395-30
$10.87
VIEW >
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