How the Excretory and the Respiratory system work together How the Excretory and the Circulatory system work together How the Excretory and the and the Digestive system work together
1 Top vented gas fireplace inserts cost $750 to $3,000, and installation adds another $500 to $1,000. 2  Direct-vent gas fireplaces cost $1,000 to $3,500, plus $500 to $1,000 for installation.
The lower end of the cost spectrum includes so-called âventlessâ gas or gel fireplaces, and those powered by electricity. Expect to spend about $400, plus another $1,000 to have a professional install and finish those that require a dedicated gas or propane line.