Carlos pretty much covered the subject. I'll just add that infrared lamp is emitting heat as soon as it's on, ceramic heaters are having some delay, but will provide heat way faster then mats or cables. downside here is that infrared lamps will last you way shorter then ceramic. you know a few degrees here and there, a few minutes here and there doesn't really make any difference.
may i just ask why are you keeping your humidity at 87? who are you having that would require such a high humidity?