In this video, Ask This Old House host Kevin O’Connor works with a professional chimney expert to repair a clay chimney and reignite an old fireplace with a gas log.

Project details

Skill

Cost

Estimated Time

How to Install Gas Logs

  • Sweep the chimney to remove any excess dirt or debris.
  • Tie a winch to foam inset that fits your chimney.
  • Pour mortar into the top of the chimney.
  • Pull up foam inset using the winch to fill in the joints of the liner with mortar.
  • Coat the smoke chamber with a spray-on, insulated mortar.
  • To install damper, feed pull-chain wire down through chimney.
  • Place damper on the top of the chimney and caulk the sides using a caulk gun.
  • Attach screened cover to the top of the chimney.
  • Attach damper latch to the fireplace.
  • Spray fireplace with high-temperature paint and let it dry.
  • Install the gas log kit. Connect burner plate to gas line with gas line connector. Tighten connection using an adjustable wrench.
  • Place grate over burner plate.
  • Arrange ceramic logs on top of grate.
  • Place fire granules underneath the logs and on top of burner plate to help disperse flame.

Tools

Tools & Materials

  • Chimney sweep brush
  • Foam inset to match specific chimney
  • Caulk gun
  • Adjustable wrench