Whats special about a porcupine?   The porcupine has specially designed hairs that are barbed spines which will spear and then detach in the face of any predator that tried to bite it. For a cute little w â¦ addler they are actually quite dangerous and should be approached (if at all) with caution. 2 people found this useful. Answered.
We regularly run two 1500 watt heaters in a 30 amp RV. Just be sure that each heater is on s different circuit. A 30 amp RV will usually have a pair of 15 or 20 amp breakers installed. If you go to run another applaince on the circuit with the heater, it will trip once you exceed the 15 or 20 amp breaker limit.
Look at RVs and boats with all the electrical gadgets that require power. It was not long ago when trailers or motor homes had only a single 12-volt house battery. Today it is standard to have two or more house batteries powering inverters up to 4000 watts. Average battery life has become shorter as energy requirements have increased. Life span depends on usage; 6 months to 48 months, yet only 30% of all batteries actually reach the 48-month mark.