I'm in the initial phase of my HERMS project, and I'm struggling to come up with an elegant solution to waterproofing the hole where my copper pipe will enter the hot liquor tank. Ideally I'd like some kind of thru-hull (below) that has fittings on either side I can attach the pipe to, but for the life of me I can't find one. What is the typical solution for this problem?

I have some amateur experience with homebrewing, which started out with very small batches and small pots. I have now a biggish aluminium pot of 30 liters (circa 8 US gallons) and the heating method I use (heating on the kitchen's hob) is simply impractical. It was slow before, but now it just takes forever to bring the wort to a boil. I live in a small apartment without outdoor access (well, we have a balcony) and gas is not …

I am a swamp cooler guy, and this is my first winter brewing; therefore, I will need some water heaters and water pumps. Here are my requirements: I have plastic swamp coolers -- no burning plastic Swamps are filled with around 5 gallons For vacations and when I'm not home, I cannot have any fire hazard or other safety problem The heater must be able to heat to the specified temperature, within a range of 1-2 F Edit: as per …