Hazardous chemicals can induce a hot zone, as occupants are in danger of it disrupting their biological processes. For example, if while driving down a highway, an oil tanker gets into a car accident and spills its load on the pavement and surrounding grass areas, those areas affected will be considered hot zones.
Costs to convert wood fireplace to gas. Installing a gas line and either vented or vent-free gas logs will cost from $500 to $2,500. (Note that the cost of installing vent-free gas logs is often about $200 more than the cost for vented.) Gas inserts cost $2,000 to $5,500. Expect to pay more for fireplace installation if workers are challenged to get the gas line to your fireplace.
1 These artificial logs can cost $50 to $200. 2  Most gas fireplaces may already come with logs, while others do not. 3  A gas professional installation of the fireplace will cost around $400 to $2,000. 4  This is going to depend on the size and complexity of the job. A direct vent fireplace that vents through a hole in a wall can cost $1,400 to $4,000 not including labor. 2  There are different styles of gas fireplaces available on the market. 3  The price varies based on the design and the energy output of the fireplace itself.