Jmmass3264

Ok so i had cracks in my 3 burner majestic forge. I ordered a new kit from majestic forge directly. Installed everything following the directions to a T. Did the heat up cycle according to the directions, but after i would say 20-30 min of use, these cracks appeared. Dont know what went wrong or how i can prevent this moving forward. Any ideas? Thanks in advance 

Thanks ill put my location in. Out of curiosity what is the problem with tagging the persons name? Never seen that be an issue before

 located in the USA. Haven't thrown it on a scale yet but seems around 10lbs

After my grandpa passed I acquired this little 10lb(or so)  anvil from his workshop. Not sure the make. Very interested to see if anyone can help me determine who its by. Thanks for any help!