Vacall AllExcavate hydroexcavators have a step-in compartment to provide operators with warmth and protection from inclement weather on winter-weather digging sites or oil and gas exploration locations. The standard heated compartment is roomy, with enough space for an operator to change out of wet and muddy clothing. The compartment has floor drainage, racks to hang dry clothing, heated cabinets for the hose reel and water pumps, and boilers that can heat water for more effective hydroexcavation in frozen ground. The unit uses high-pressure jetting action to loosen soil, rocks and clay, then strong vacuum (up to 27 inches Hg and 5,800 cfm) to remove the material and water slurry into a debris tank. 800/382-8302; www.vacall.com.