constant force vs block and tackle

which is a better balance system?

I'll get arguments with this but I prefer constant force foir vinyl windows.

Most vinyl companies use constant force but there are some fairly premium lines that utilize block and tackle.

All are better than previous models and should live a long time worry free.

Block and tackle is more preferable in new construction applications because it is less sensitive to construction debris.

constant force is far better and some brands can be adjusted

Far better...?

You are posting up on a bunch of threads spouting off things that you obviously don't know.

why don't you tell me which system is better for new construction of which system has tested to more cycles of use.

In the real world, either is good and most companies warranty them for life in their warranty
Like WoW said, either is vastly preferable to the spiral balances of the past.

Counterbalances have gone from being my most prevalent service issue in my first 20 years in this business to being an almost non-existent service issue over the last 10 years.

After thinking about it, the last service call I had on a balancer was about 10 years ago and the factory sent me a new one for a very large double hung that needed a stronger unit. Window4U is right it has become a non issue. The constant force is best for longivity, and the block and tackle maybe shines a little for a dh over a kitchen sink and is replaced easier but in 99% of the windows out there both solved the longivity issue and are miles ahead of the old spiral system.

From what I've heard the block and tackle system tests several times longer for cycles of use. I would say the block and tackle is better for longevity. Go figure. Like the other posts have stated, however, both types are much more problem free than balance systems from 20 years ago. I'm actually fine with either one.

I was just quizzing him. Don't give away all the answers.

Hey I only gave away one answer . . .

block and tackle is a lot quieter. constant force balances tend to be noisy as the coils are stretched and retracted on the rollers that are inside their keepers.

I don't know that I've heard either on make much noise??? Here's my take: Constant Force= more even and effortless operation, Block and tackle: better for new construction, last longer. Either way: they are both decent, unlikely to have issues, and cheap to replace if they do.

i build both for a living. block and tackle are much quieter!

I sell windows with both. Seems like most people like the constant force window better.

Thanks for the above info.

I would add this one thing:
I feel that it's a lot easier to replace block and tackle balances when they do go bad.