THEO Heater - 400W - Up to 105 gal.
Item # 205220 / Manufacturer Part # T11502
Provide your tank with the proper temperature with the most advanced heating technology available. THEO heaters are designed with a peculiar cylindrical shape that renders them virtually shatterproof. Fully submersible, THEO heaters function with the PTC (Positive Thermal Coefficient) heating element, a special polymer sheet silk-screened with heating ink (like your car's windshield defroster), that enables them to run dry for a short time without damage. With an easy-to-read temperature dial, these heaters are the simplest, yet safest available.
400w model is rated for aquariums up to 105 gallons.
For complete product information, download the instruction manual.
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No complaints so far. 10/29/2014
Reviewer: Steve R
I have a 55 gal tank in a unheated basement. The ambient temperature swings from 60 to 70F. This heater holds temperature within a few degrees. This replaces 2x200W heaters which did not hold near as tight. The verdict may still be out as I only had the heater a couple weeks.
Reviewer: Vinny B New York
This is not the first HYDOR product I bought and just as the first, these heaters are crap. I have a 150 gal reef, 400watt is 100 more than heater it replaces and my temp swings from 73 degrees to 78. It cant even handle the room temp variations from when I go to work in the morning to evening. When room warms the tank warms too much.
Good heater 12/20/2013
Reviewer: John V
I have a 92 gal tank my room temp is 68, the heater keeps a constant temp of 78.
So far I'm very happy with it.
These work so well, we had to turn them down but no complaints here.