[sparklebright]

i was woudering that if u got a 12v water heater and ran it off another batter in the day wile u was working how long do u think the bat would last?

12v is just not man enough to generate any real heat I'm afraid.

[chopsie]

would an inverter be a good idea,to keep the aquarium heaters working throughout the work day?

[matt]

would an inverter be a good idea,to keep the aquarium heaters working throughout the work day?

the battery would die really quick

its a no-go

you could buy a small suitcase genny, that would power a heater