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MT79 08-08-2003 01:12 AM

Correct heater watts??
I have a 30 gallon FOWLR tank. Room temp never goes below 73 F. (even in the cold Philadelphia winters) What is the "watts per gallon ratio"? :?
Thanks for any help

two11devan 08-08-2003 02:00 AM

I think its something like 4 watts per gallon....i have 2 150 watt heaters in my tank (in case 1 breaks)....i ran just onre for about a month and my temp stayed at a constant 80 ish degrees.....i have a 30 gal also....HTH!!

gooyferret 08-08-2003 02:28 AM

MT79, Welcome to
Alot of the times it will depend on the heater. From what i have seen heaters are varied in watts and gallon ratio. Check the heater instructions and sides of packages to determine what heater will work for you. As you look around you will notice different ranges of wattage for different heaters HTH

MT79 08-08-2003 02:47 AM

Thanks for the welcome gooyferret, and thank you both- two11devan, gooyferret, for the help, I appreciate it :wink:

r95rdstr 08-09-2003 07:34 AM

Five watts per gallon is the old rule of thumb, but heaters do vary as has been mentioned. Don't use the degree setting on the heater to set your temp. Pick a thermometer from the LFS for this task. Heaters are known to be off a few degrees from what their dial setting says. When you pick a thermometer, pick one that shows the same reading as the majority hanging on the hook in the LFS.

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