I am having a company insert a Quadra Fire gas insert into our existing wood burning fireplace.put in. We have a gas line that happens to be beneath the fireplace in the basement that is 1/2" size. That line runs approximately 50 feet from near where the gas comes into the house. That line currently feeds a furnace rated at 45,000 btus. The Quadra fire is rated at 35,000 btus. Would that line be adequate to feed both the furnace and the gas insert?