Newbie from Kent

Hi all,
My girlfriend brought me a landmann Tennessee offset bbq for my birthday.
I know there's a lot of mix reviews on these but herd with some simple mods they can be pretty good.
Looking at sealing the leaks and the gaps around the door but what do you guys recommend?
I've got this firebrick 1500c sealant can I use that?
Thanks
Martin
My girlfriend brought me a landmann Tennessee offset bbq for my birthday.
I know there's a lot of mix reviews on these but herd with some simple mods they can be pretty good.
Looking at sealing the leaks and the gaps around the door but what do you guys recommend?
I've got this firebrick 1500c sealant can I use that?
Thanks
Martin