I have built myself a three tier stand with on burner up top for heating sparge water and one burner on bottom for the boil. I use a 10 gallon igloo cooler for my mash but I think I'm ready to do a direct fire mash tun. My question is that before I add a burner and have the headache of trying to keep my mash temperature stable manually are there any kits out there that I can order for this application. And if there is oils you please post them . I've searched the Internet and I guess my googling skills just aren't good enough to find what I needed.