I'm confused - Gazania is a tender bedding plant for outdoors during the summer, it's frost sensitive so dies over winter. If you've bought one, presumably you've either got it in a greenhouse or are keeping it as a houseplant. It won't like direct heat, so move it away from a radiator or other heat source, keep it well watered. It does like very bright light and sunshine, but it might be that sunshine through glass means its too hot on sunny days, I don't know. The flowers close up out of the sun.