Originally Posted by day_trippr
Leaving aside the question of whether the 6" banjo will behave in low pressure use, you can put a small 1/2 psi (~11 WC) regulator tapped off your high(er) pressure line to feed one of the burners.
The question is: why would you do this?
For automation. The Honeywell valves run on low pressure only. I am setting up a 2 tier system, with a automated "Brutus" style Mash Tun. I've already got the 6" BG-12 burners. On high pressure they work fine for my needs for the HLT & Boil Kettle (no automation on these), and on low pressure should put out 20-30k BTU, plenty for maintaining mash temps.
The process I have in my head is to pre-heat my strike water to close to mash temps in the HLT, then gravity drain into the mash tun and let the automation bring it up to my mash temp, and take over for the duration of the mash.
If I were to do it again I would definitely just put in all 10" Banjo's on low pressure for simplicity, but at this point I'm trying to avoid spending any unnecessary $ and still achieving the desired results.