Submersible aquarium heater with advanced heating element
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Redesigned heater boasts superior heat transfer and durability
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Set and maintain ideal water temperature for aquarium inhabitants
Set and maintain proper aquarium water temperature with ease. Convenient, user-friendly features include top-view scale and high-visibility sliding scale for dual visual confirmation of temperature adjustments. "Click Set" temperature control knob lets you accurately dial in desired temperature with ±1°F precision with every click. Enhanced heater design boasts electronic thermostat and an advanced heating element for superior heat transfer and durable performance. Marineland Visi-Therm Heaters are for submersible use in fresh or saltwater aquariums.
Wattage
Length
For Aquariums
25W
9"
6 gallons
50W
9"
12 gallons
75W
10"
20 gallons
100W
10-1/4"
29 gallons
150W
12"
40 gallons
200W
13-1/2"
55 gallons
250W
14-1/2"
70 gallons
300W
15"
80 gallons
400W
18"
125 gallons
Please click on "More Information" for directions for use.
Directions for Use
Important: Do not plug in heater until instructed.
Attach the included suction cups to the Double Suction Mounting Bracket. Slide bracket over heater.
Place heater in aquarium by firmly pressing suction cups against aquarium wall surface. The Three-Position Viewing Window allows you to view the temperature setting from three possible angles. Simply turn the heater until it locks into the best viewing position. Note: Choose an algae-free location with adequate water circulation. This ensures even heat distribution and optimum operation. No part of the heater housing should come into contact with aquarium gravel, rocks or decorations.
Wait at least 15 minutes before plugging in your heater. The on/off indicator light will confirm that the power in on. NOTE: Before plugging in the heater, create a "drip loop" to prevent water from reaching electrical receptacle.
Select the desired temperature. Turn the "Click Set" Temp Select Dial until the point of the red line on the thermometer scale reaches the correct setting. Most tropical fish like 78-81 degrees Fahrenheit water.
Features
"Click Set" Temp: Gives precise control to accurately set temp to ± 1°F with every click.
High-Visibility Temperature Setting: Easy-to-view sliding scale tells the exact temperature setting and new top view shows the setting at the dial.
Triac Equipped Thermostat: Switches heater on and off with lower voltage for superior reliability and performance.
Mounting Bracket: Advanced mounting bracket securely attaches to glass and provides three window positions to view temperature display from multiple angles.
Advanced Heating Element: Flattened mesh heating element surrounding a mica core for superior heat transfer with enhanced durability.
A sharp drop in water temperature is extremely stressful to fish and can compromise their immune system. Improperly sized heaters may not be able to maintain their set temperature and cause aquarium temperature to fluctuate several degrees per day.
Temperature can be the single most important component in the life of your fish. Fish, in the wild and in our aquariums, are very sensitive to changes in temperature. Learn the affects of water temperature on fish health.
Please note: Return of electrical equipment to Drs. Foster & Smith for exchange or refund is limited to 60 days from the date of purchase. Beyond 60 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.
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 "Marineland Visi-Therm Heaters")
Set and maintain proper aquarium water temperature with ease. Convenient, user-friendly features include top-view scale and high-visibility sliding scale for dual visual confirmation of temperature adjustments. "Click Set" temperature control knob lets you accurately dial in desired temperature with ±1°F precision with every click. Enhanced heater design boasts electronic thermostat and an advanced heating element for superior heat transfer and durable performance. Marineland Visi-Therm Heaters are for submersible use in fresh or saltwater aquariums.
