Heating question

[capschamp]

So I'm setting up my aquarium in my downstairs, and it stays pretty cool year round. Right now it's 60 down here. Is one 300 watt heater enough to keep 72+ gallons heated to 78ish? Or am I going to need another heater? Display is a 72 bow front and sump is 43" long filled 7" deep.

 

[USC-fan]

You will need at least 2

 

[capschamp]

Thanks guys. I'll get more on order.

 

[sbeason]

I agree with others on this.....I have a 210 on my main floor with a 100g rubbermaid sump in the basement. I use a ranco dual stage controller and have two 400w heaters that run off the heating side of the controller. I have those heaters placed in the remote sump in the basement, since thats where the water is cooler, especially when its colder outside.