We do not install vent for stove exhaust vent hood. Gas size inlet on giant stove is 3/4” and gas line coming out of wall is 1/2” no guarantee that it will work and we are not responsibility because we did not install gas line nor did we purchase stove nor did we indicate what gas line was coming out of wall would work. The price is cheaper to run new gas line because I have already deducted todays price if you have us come back to install new gas line if this doesn’t work.