heating suggestions

Ive got a room thats covered in plastic and i need some heating unit. any suggestions that you feel is trust worthy to not catch on fire and also puts out no light thanks

ceramic heater are the safest, they do use a lot of electricity. If you can get a kerosene heater the extra co2 it throws off will help your plants grow.

yeah i run co2 already so it prolly wont help much

also dont most of those put off the orange light...