I am about to begin construction of a small outbuilding that will be the home for my Econoburn boiler. I will be trenching and foaming the pex lines to and from the house (where I will locate the 1000 gallons of pressurized storage) and am wondering what type of wire I need to run in the trench from the house to the boiler. There will be two pumps and perhaps a zone valve for the heat dump. Besides the electrical power feed for the boiler, pumps, and valve, what type of cable do I need to run for controls, thermostats, temp sensors, etc.? Thanks!