Heater Sizing
 

What does everyone use in larger tanks for heaters (wattage)? I have 2 x 200w and with the heat turned off in the house, the tank dropped to 72 over night. Clearly, my heaters aren't cutting it :)

i got 2 250w in my set up probably 160ish gallons total

I would have thought that was enough. Maybe mine are just so old they don't heat anymore. Guess I can test. Tank is back up to 73.3 currently :)

1000 watt Bluline titanium with controller.

Wow Brad. 400w should easily keep your 180 at a set temp. And to boot you have a top. Must be a heater not doing its job.

I like to stick with 3-5 watts/gallon
I have 3 x 200w in 110 gallons total
If 1 fails, 2 can still keep up

Well, the kid turned the heat off, so it was pretty cold in that room overnight. But ya, I would have thought they'd keep it at temp. Maybe time to replace heaters -lol
Oh, and no top, just open.

I have a 500w titanium with controller on my 270G systemand it works amazing. I have it set and it fluctuates maybe 0.2 deg in a day. Great investment. No worries about heat anymore.

Mike

I'm pretty happy with my hot water pex loop heating my tank.
I can't really say how many watts I would otherwise be using though.

120 gallons 2 x300 watts.