I have far too many memories of freeze damage in "winterized" homes where the winterizing procedure consisted of shutting off the main valve, opening a basement drain in the potable water system, opening all faucets, flushing every toilet, adding automotive antifreeze to traps and toilet tanks/bowls, and turning off the heat.
Submissions were collected over the summer and then reviewed by a panel of third-party judges made up of distinguished ASHRAE members. Entrants are evaluated based on overall innovative design, creativity of the product or service offered, application, as well as potential market impact.