Home Distiller

I'm building an indoor wood burning furnace for my still. The fire will be controlled by an air inlet on loading door. Much like a wood stove in your home. As an extra precaution I intend to plumb water inside and brass nozzle tips to spread the water. I'm thinking 6 should be adequate. I was planning to braze the copper and tips to tolerate the heat.

Would I need a pump and pressure tank to maximize my house water pressure? Any ideas on an in-line pump?