* http://www.popularmechanics.com/home/how-to-plans/metalworking/4323694 - Some more elaborate brewing setups.
* http://www.popularmechanics.com/home/how-to-plans/metalworking/4323694 - Some more elaborate brewing setups.
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* honeywell "glowfly" + http://www.ebay.com/itm/3-4-Electric-Solenoid-Valve-12-volt-DC-VITON-SEAL-B21V-/300600605047?pt=LH_DefaultDomain_0&hash=item45fd313977#ht_2101wt_728 propane burner control for mash tun control