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General Category => Equipment and Software => Topic started by: oscarvan on December 09, 2010, 04:32:30 AM

Title: How many BTU's?
Post by: oscarvan on December 09, 2010, 04:32:30 AM
OK, the FrankenBrewer is starting to take shape in my mind......

Lets assume I use 1/2 barrels as HLT and brew pot...AG, 5 g batches... how many BTU's do the burners need to be to make things "move along"?
There's a lot in the 30.000 range for not too much money, but then there are also 70K and more burners..... "MORE POWER SCOTTY!!!!" So... how much do I need.... and:

These suckers are not cheap......does anyone know where the best drag down knock out burner deals are right now?

I don't care about height/legs......Said burner will be de-legged and mounted under a welded rack that the barrels sit on.....
Title: Re: How many BTU's?
Post by: Norm! on December 09, 2010, 05:16:40 AM
In my very humble opinion, Its not all about Btu's but how its applied to the kettle.....the hurricane burners spread the heat very well and they work great for me! the only time I watch closely is  from 150f and up,  I make about 2 f higher per minute.
Title: Re: How many BTU's?
Post by: jeffy on December 09, 2010, 12:33:57 PM
I recently upgraded my burners from the antique jet burners that came on the original sabco system to the regular cast iron burners that are usually rated at 55K or so.  I got three of them shipped to me for about $65 from Bayou Classic.  http://www.bayouclassicdepot.com/  I called and talked to a nice lady at this place who convinced me that these burners were all I really needed.  I had to change the pressure regulator to one with at least 20psi.
As an aside, they stayed lit in the wind better than the banjo burners on another system the same day.
Title: Re: How many BTU's?
Post by: a10t2 on December 09, 2010, 02:50:44 PM
Just as a reference point it would take ~8000 BTU to bring 6.5 gal from room temperature to a boil, assuming no losses. So a burner that's putting out 30,000 BTU/hr could do it in about 15 minutes if it was running at maximum power. Since I don't think you want to run them wide open all the time, figure 45 minutes in real life. Like jeffy said, most basic turkey fryer type burners are in the 50k BTU/hr range. That's what I use and for 5-10 gallon batches they're plenty powerful.
Title: Re: How many BTU's?
Post by: oscarvan on December 09, 2010, 03:42:13 PM
Ok those are useful numbers. Thanks.
Title: Re: How many BTU's?
Post by: hopfenundmalz on December 09, 2010, 03:55:33 PM
FYI - My 180k BTU burners may not be that high, according to this.
http://www.blichmannengineering.com/brew_stand/brewstand_modular.html
Title: Re: How many BTU's?
Post by: tallcall on December 09, 2010, 05:52:09 PM
I built mine using these http://www.cpapc.com/store/23-Tip-Round-Nozzle-Jet-Burner-natural-gas-P469C0.aspx . Will heat 10 gals to a rolling boil in about 30 minutes.
Title: Re: How many BTU's?
Post by: oscarvan on December 10, 2010, 12:59:33 AM
I built mine using these http://www.cpapc.com/store/23-Tip-Round-Nozzle-Jet-Burner-natural-gas-P469C0.aspx . Will heat 10 gals to a rolling boil in about 30 minutes.

NOW WE'RE TALKING..... I've seen those for a LOT more...... They're listed for natural gas, but I bet I can get them set up for propane.....
Title: Re: How many BTU's?
Post by: Hydro on December 10, 2010, 01:54:31 AM
I built mine using these http://www.cpapc.com/store/23-Tip-Round-Nozzle-Jet-Burner-natural-gas-P469C0.aspx . Will heat 10 gals to a rolling boil in about 30 minutes.

NOW WE'RE TALKING..... I've seen those for a LOT more...... They're listed for natural gas, but I bet I can get them set up for propane.....

Natural gas is a lot better priced.  Do you not have access to natural gas?  The price for this burner does sound good.
Title: Re: How many BTU's?
Post by: oscarvan on December 10, 2010, 02:29:35 AM
Nope... The only natural gas at my house..... Ah, never mind.