22 gal pwm kettle

[defenestrate]

well i went back up to jersey to the parents for christmas and got a lot of schooling as far as electricity goes. my pops is retired but used to own a car stereo/repair shop and is wise in all this electrical... i spend a few hours with him so i wont be asking quite as many newb questions everything will be in the direction of building the PWM now.

also for xmas, they bought me my 22 gallon kettle, here are a few shots!

 

[stevehaun]

Beautiful!

 

[defenestrate]

i guess i do have a few more questions.

if i were to use a spa panel, wouldn't i still need to have to install a breaker in the main panel, and run that to the spa panel?

and why is a 50 amp spa panel so much cheaper than buying a 30 amp gfi 240 v breaker?? seems odd... you could use the breaker out of the spa panel and put it into your main panel correct?

i'm kind of leaning towards going with the gfi extention cord, only because i'm trying to be as non-intrusive as possible being that i'm renting. that way i wouldnt have to mess with any panels, installing outlets anywhere, etc.

 

[defenestrate]

is the schematic in these links good to follow? its really the only thing i've found so far...

http://home.highertech.net/~cdp/boilnew/boilnew.htm

http://hbd.org/rlaborde/controll.htm if i'm understanding correctly, he is only using one SSR for each element, correct? now i understand why you guys are saying use one for each leg..

as far as the lm555... is that what they are using for the pwm?http://www.national.com/mpf/LM/LM555.html#Overview