Patton PUH680-N-U Milk-House Utility Heater $12.95 Amazon & Walmart By admin | April 1, 2017 1:07 pm EST 0 Comment Amazon & Walmart have the Patton PUH680-N-U Milk-House Utility Heater for $12.95.Free Shipping for Prime Members when you order through Amazon.Free 2-Day Shipping on orders $35+ for Walmart.