ARDESTO CTC-NS5015B, GTC-NS1011W, GTC-NS2012W, GTC-NS3013B, GTC-NS3013W, GTC-NS4014B, GTC-NS4014W Owner's manual

Hello! I'm your chat assistant, and I've carefully reviewed the instruction manual for ARDESTO table top cookers including models GTC-NS1011W, GTC-NS2012W, GTC-NS3013W and others. This document provides essential information regarding warranty terms, installation, and usage. Feel free to ask me anything about the document, including the warranty conditions or any other product-related questions you may have.
How long is the warranty period?

What is the service life of the product?

What is needed to have valid warranty?