I would be seeing if the actual heat output is in the sump itself, that way you can compare it to the temprature of the tank and use that to make up the differnce. Also might be a good idea to go with 2 300 watt heaters as stated ahead of me!
Heating a 200G Acrylic tank 96x24x20
- Thread starter Scottfree
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im only turning the tank over 5x per hour n thats more then enough to keep my tank temp steady at 82
ethnics;680335; said:
Agreed
I got mine USED 1-200 and 1-250 w in my 55 g sump and I have one set at 82 and the other at 90 and my temp is 84..My tank his turning over about 8 times .. sorry my actual temp right now is 86 as i had some issues to take care of the last week Anytime you run multiple heaters in a sump, you really should have a temperature controller so you can put a probe in the aquarium, and regulate the heaters in the sump. Otherwise, one heater will work overtime, while the other hardly runs at all. This not only wastes electricity, it leads to premature failure of the heaters.
n how do you presume we run a temperature controler on a regular via aqua with built in settings?
You simply turn the heaters to the highest setting, which in effect turns the built in thermostat off, you then adjust the temp. using the controller.
i've never had a problem using 2 heaters with internal thermostats. i use 2 heaters during winter. n i turn off the second heater after winter... i will probably do the same for my 400gal, its having zero problems holding steady at 82 in my garage.
Hillbilly is just explaining the most accurate way of running heaters in a sump.
You may have good success with your heaters in a sump with their own internal thermostats but those thermostats have absolutely no idea what the temperature of the water in the tank is. I'm guessing you would have to do a lot of experimenting to get the adjustment correct. Then if you have a change of flow your temperature will change.
With a controller you don't have to worry about this, the controller does all of the work and keeps that tank at whatever you set to regardless of flow.
You may have good success with your heaters in a sump with their own internal thermostats but those thermostats have absolutely no idea what the temperature of the water in the tank is. I'm guessing you would have to do a lot of experimenting to get the adjustment correct. Then if you have a change of flow your temperature will change.
With a controller you don't have to worry about this, the controller does all of the work and keeps that tank at whatever you set to regardless of flow.
