Heating a 180 Gallon tank

[jusmad]

What type and amount of heaters would i need for my 180 tank? thanks

 

[Gr8KarmaSF]

i use 2 300watt heaters for my 180g.

 

[rkc772]

i use 2 x 250W. but i haven't had any chance in doing it since it's summer and the water temp goes around 78-80 w/o heater.

 

[rumblesushi]

2 x 250 watt heaters, brings it up to temp fine even in this freezing cold house in winter, with water changes straight from the cold tap.