Ohio, but we have dealers in many other states. Heartland shelters can be installed all 3 ways, but we recommend it be installed fully underground.
Air is provided through a patented flow through door rail system.
Our unit is designed to be placed in the lawn, but can be incorporated into a new construction. We have drivers who ship for us or they can be picked up to save shipping costs. Heartland has a distributor base in which the distributors install the unit, or the client may install to save money. We have run into every condition. Each unit is equipped with and emergency evacuation jack to remove the door and debris.