Deep Blue Heat Stik Submersible Quartz Heater 17″ – 250 Watt
The 250W submersible quartz heater features a maximum strength quartz silica tube that is shatter resistant and more durable than conventional glass heaters. The “Easy Set” thermostat provides precise and accurate thermal control. Includes a gravel guard and suction mounting brackets for use in both horizontal and vertical positions. Fully submersible and safe for use in both freshwater and marine aquariums.
| Specification | Detail |
|---|---|
| Heating Power | 250W |
| Heater Type | Quartz Silica Tube |
| Thermostat | Easy Set |
| Mounting | Suction Brackets with Gravel Guard |
| Submersion | Completely Submersible |
| Compatibility | Freshwater & Marine Aquariums |
FAQ
What is the maximum heating capacity of this heater?
The heater has a maximum heating capacity of 250 watts.
Is the quartz tube safe for long-term use in aquariums?
Yes, the quartz silica tube is shatter resistant and designed for long-term use in both freshwater and marine aquariums.
Can this heater be installed horizontally or vertically?
Yes, the suction mounting brackets allow for both horizontal and vertical installation.

Joshua Cornish –
This heater has been running steadily in my 55-gallon marine tank for over six months. The temperature stays consistent and the quartz tube shows no signs of cracking or damage. Easy to install with the suction brackets and gravel guard. No issues with overheating or temperature fluctuations.
Gabrielle White –
I installed this in my freshwater tank and it maintains a stable temperature even during temperature drops. The thermostat works well and the heater is quiet. A bit bulky for small tanks, but perfect for larger setups.
Isaac Fraser –
The durability of the quartz tube is impressive. It’s much more resistant than the glass heaters I used before. The gravel guard prevents sediment buildup, and the mounting is secure in both orientations.