Do I need to install fire brick for outdoor propane gas fireplace?

I would use fire brick, but check with the manufacturer of the gas log insert to be sure.

Stones should hold up well - especially if they used to be a fireplace - but check with the manufacturer to be sure.

You may want to check with your local codes to see if firebrick is necessary to bring it up to code when built.

I would go with fire brick. Some natural stones can blow up under the heat (like sand stone) If you know you have granite rocks though, then those would be safe.

I would say better safe than sorry. They aren't very expensive and could save you some heartache in the long run.

Yeah use fire brick. Stones and regular brick will blow up and crack from the heat

Yes.

Use fire brick, they can take the heat where the others can't. The propane as well as charcoal or wood can produce varying degrees of heat will surely test the properties of what you use in construction of your fireplace.

Should you yes do you have to no but error on the side of safety and fire bricks are cheap also.

Yes, definitely. I really suggest to use fire brick.

Hi! Check with your municipality rules. We have rules about distance from houses, what type of screen to prevent sparks, etc. Good luck!

Hi Gayla, Yes, better safe than sorry

Yes.

To the point of checking with the City, they will definitely have regulations about chimney height, spark attractors and may even mandate hearth sizes and heights.

You’ll have to have propane shut-off valves too, per Code.

Here's a post that might help http://www.diyoutdoorfireplaces.com/firebrick-explained/