How long for chuckie?

[cooker613]

I have a five lb chuck roast defrosting in the fridge. I was wanting to give it some smoke and finish sous vide. I figure about 3 hrs in the smoker @ ~225-250. But unsure about temp and times to finish it. The more I read, the more confused I get. I seen temps from 135 - 160 and times from 18 hrs to 36. Some guidance would be cheerfully and gratefully appreciated.
Thanks in advance.

 

[Winterrider]

The last one I did was 21 hr, temp to 140° ( per wife's request ) came out very tender.

 

[kruizer]

If you sous vide the roast after you put some smoke on it, What Winter rider said will do it.

 

[weedeater]

Sounds like good advice to me! Post some pics of the finished product.

Weedeater