Kris: Thank you for contacting Porch. Most likely there is already a regulator in the range - but you would need to review the installation directions to be sure. Best would be to have a licensed professional determine the gas pressure needed and if the pipe to the furnace is large enough to supply both appliances concurrently. You can input your zip code here: https://pro.porch.com/near-me/plumbers for local pros or call us at 1-855-707-0141 to get started.