Renovating Fireplace

[Niscars]

Hi, I am fitting a second-hand wood burner into the large fireplace in France pictured below. Before I do this, I want to sort out the back wall which currently is very black with several holes and missing mortar. I intend to clean and repair the stone with Lime Mortar pointing like I have done in other areas of the house already. I realise that the area is going to get hot but as the back of the wood burner is going to be about 15cm from the new pointing, will this be ok or do I need to use something other than the lime please?

Thanks, Oscar

 

[dann09]

The cheeks and the fire back appear to be three separate pieces of stone - is that the case? Or are the cheeks and fireback render over stone?

What precisely, do you want to point up?

Traditionally, they would have used a lime mortar, nowadays we have fire cement that will do the job. Whatever, i'd go with 4:1 S&L pointing mix.