Gap between Fireplace & Hearth

[Toggles]

Hello,

My wife and I purchased a home in May of this year. With the warmer weather, we didn't really look at the wood burning fireplace until the other day, we started to clean out the decorative glass the seller had put in. I noticed that they used spray foam between the fireplace and the hearth. I'm not sure if it is fire block foam or not, but from my understanding even that wouldn't be the right thing in this area since it is only rated to around 225 degrees.

Is this assumption right? If so, what could I replace the foam with? I will need to replace it with something because I can feel a draft coming through the gap so I want to stop that for when it gets below freezing.

 

[bholler]

Yes all that foam needs dug out of there. Show us a pic from.further back showing the whole thing

 

[Toggles]

Here are a bunch of more photos from different angles.

 

[Toggles]

Just wanted to bump this.

Also, would something like this work in the gap once I remove the foam?
Rutland Castable Refractory Cement

 

[bholler]

Just wanted to bump this.

Also, would something like this work in the gap once I remove the foam?
Rutland Castable Refractory Cement

I am not even really sure what type of unit you have there. But just regular mortar would be fine