While some heat transfer to the glass surface of a gas stove is normal during cooking, excessive heating that makes the glass extremely hot can be a cause for concern. As you've mentioned that it's a brand new stove, it's essential to understand the expected behavior of your specific model.
The Preethi Blu Flame Sparkle 3B gas stove comes with a toughened glass top, which is designed to withstand heat and provide a smooth cooking experience. However, if you feel that the glass is getting unusually hot or too hot to touch, it's best to take some precautionary measures:
Check for proper installation: Ensure that the gas stove is correctly installed according to the manufacturer's instructions. Improper installation can lead to uneven heat distribution and may cause the glass top to get excessively hot.
Use appropriate cookware: Make sure you are using cookware with flat and smooth bottoms that fully cover the burner. Uneven or smaller cookware can cause heat to concentrate on certain areas of the glass, leading to excessive heating.
Adjust flame settings: Check if the flames are set to the correct size according to the size of the cookware and the type of cooking you are doing. Too high of a flame can cause more heat to transfer to the glass.
Contact customer support: If you have concerns about the heating of the glass top despite following the instructions and using appropriate cookware, it's best to get in touch with Preethi customer support or the retailer where you purchased the stove. They can provide further guidance and assess if there is any issue with the stove.
Remember that a slight warmth on the glass surface is usual, but if you feel that the heat is excessive or unsafe, it's better to address the issue promptly to ensure the safety and proper functioning of your gas stove. Always prioritize safety and follow the manufacturer's guidelines to avoid any potential hazards.