white heat is more hot

for me color effect heat is red..because red is a very colorful into your eyes

Red. Red has the slowest wavelength on the visible color spectrum, creating red to take in the least amount of heat.

Heat is usually red because of fire. Fire is a mixture of red, orange, and yellow. Some types of fire are blue but that's not often. So when representing heat or warmness it comes only natural to use the the color red.

No, red absords more heat because it's darker than yellow.