Can this be wall mounted without the pedestal?

Great question, yes, this unit can be installed in three different ways, wall mount / freestanding heater (with pedestal) / freestanding (with optional wooden mantel). You can see installation options on pg. 10 of the installation manual, Installation Manual. If you have any further questions or need further assistance, please feel free to reach out to one of our experienced customer service representative and they would be happy to assist you. Thank you and have a wonderful day.