Renovation foundation wood stove.

[HobbyJohn]

I was thinking of quickly replacing the tiles on the old wood stove this Friday since the old ones were ugly and cracked. It turns out that the person who did this before cut so many corners that much of what's underneath was loose and also fell off.

What should I do here?

My idea is to remove everything loose. Cast? Up to an even level and then put tiles.

What type of mortar should I use?

 

[HobbyJohn]

Update:

I used regular mur&putsbruk C. Filled the holes and plastered a smooth surface that I can then tile on. We'll see how it turns out.