Looking for a heater? Steveston Marine & Hardware has Propane Heaters, Diesel Heaters and Electric Heaters available for you! Dickinson make excellent propane and diesel heaters that can heat air and water! Webasto and Heatercraft make excellent diesel forced air heaters that provide venting throughout your boat. Looking for an electric heater? Caframo makes 110 volt electric heaters and fans, and even a 12 volt defogger!