sorry not sure where to post this so i can't get the temps in my rack right i just can't get it high enough in that room of my apartment using just Undertank heaters in the rack. so what is the style of space heater that can be on the longest and hopefully uses a smaller amount of electricity and i was curious if something like this would work well http://www.walmart.com/ip/LifeSmart-...White/17337512 the room is 18'x8' feet and 8 feet tall if you need that info