LP manifold question about needle valves

I've been looking around online and reading about propane manifolds and flow control, and I wanted to get some questions cleared up if possible. I can always head to the local shop if needed, but figured I would post here in case it helps someone else too.

In my setup, I have a 20# LP tank. I also have a 100# to use if needed

I have this 10psi regulator from the tank to this adapter which is connected to 1/2" NPT iron pipe tee with 1/2" NPT black iron pipe nipple on each end. From there I have two ball valves. I will use 3/8" flared copper tubing and flare nuts to connect the ball valves to the 3/8" flared fitting on two of these BG12 burners.


My question is, do I need needle valves? The regulator comes with a needle valve, but it's before the manifold so I'm not sure it will really do much good in that position. I can provide pictures later today if needed.

Thanks!

 

Use needle valves. Occasionally, you will have your burners running at different intensities, so the individual control is necessary. Some people say they get good intensity control just off the ball valve, but that didn't work well for me.

I use 1/4" needle valves right in front of my burners.

 

Would your recommendation change at all if I said these burners are on the HLT and BK only? I've got a cooler for my MT, so no flame there..at least not on purpose.

 

I guess it's really up to you. It would be cheaper to avoid them.

It sounds like you would only be heating one vessel at a time, so a single valve at your tank would probably do the trick.

Double batches and step mashes (I direct fire my MT) require individual control.