Not really dangerous . . . .
Heat waves are the same as infra-red radiation; however it is the more specific name. Electromagnetic waves range from Radio Waves to Gamma Rays so, technically, the answer is no.
Gamma Waves
Beta paricles is a form of ionizing radiation and may be dangerous; this depends on the isotope and many other conditions.
Infrared waves.
Heat waves
surface waves are more dangerous than body waves with up and down movements.
No. Radiant heat is an electromagnetic wave, and EM waves are transverse waves.
Not really dangerous . . . .
Heat.
heat transfer by e.m. waves
Heat waves are the same as infra-red radiation; however it is the more specific name. Electromagnetic waves range from Radio Waves to Gamma Rays so, technically, the answer is no.
Waves waves
Radiation.
Gamma Waves
Radiators transfer heat by electromagnetic waves. The sun waves/rays send electromagnetic waves.
Beta paricles is a form of ionizing radiation and may be dangerous; this depends on the isotope and many other conditions.