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Heaters, Chillers, and Thermometers

(9 items)

Maintaining a stable water temperature is essential for the health and longevity of your reef tank. Whether you're managing swings in a high-light SPS system or adjusting for seasonal shifts, precise temperature control can make all the difference in coral health, fish behavior, and overall stability.
 

At Top Shelf Aquatics, we carry a curated selection of heaters, chillers, and thermometers built for reef environments. From compact digital thermometers to high-wattage titanium heaters and commercial-grade chillers, our collection includes options for nano tanks, large display systems, and everything in between.

 
Trusted by reefers for reliability and accuracy, these tools help you avoid dangerous temperature fluctuations and automate climate control with ease — whether you're setting up a new build or upgrading your current system.


Heater, Chillers, & Thermometer Top Picks

A table comparing the facets of 4 items
Facet
Scuba Contactless Heater - SICCE
Scuba Contactless Heater - SICCE
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Titanium Aquarium Heater Elements - IceCap
Titanium Aquarium Heater Elements - IceCap
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STE Digital control Titanium Heater - Finnex
STE Digital control Titanium Heater - Finnex
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Helio PTC Smart Aquarium Heater - Innovative Marine
Helio PTC Smart Aquarium Heater - Innovative Marine
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Price
Price
From $4499
From $3499
From $9499
From $9899
Features
Features
The Sicce Scuba Contactless Heater offers cutting-edge temperature control via NFC technology—no dials, no buttons. Its dual dry-run protection (electronic + thermal) ensures safe operation, while high-density thermal glass and a 5-year warranty offer long-term peace of mind. Compatible with the SICCE ContrAll App, it’s a sleek, precise heating solution for tanks up to 125 gallons.

Key Highlights:
- Contactless NFC temperature control (via app)
- Dry-run protection (electronic + thermal backup)
- Precision ±1°C (±2°F), adjustable from 59–95°F
- Shatter-resistant glass, 5-year warranty
- Sizes: 50W–400W (covers 10–125 gal tanks)
The IceCap Titanium Heater is a corrosion-resistant, shatterproof heating element designed for efficient, long-lasting performance. Requires a separate temperature controller (sold separately) and is ideal for hobbyists seeking customizable control. Available in five sizes for tanks up to 133 gallons.

Key Highlights:
- Durable titanium construction with fast heat conduction
- Requires external heater controller for operation
- Includes suction cup mounts
- Sizes: 50W to 400W (covers 16–133 gal tanks)
- 1-year warranty
The STE Titanium Heater combines industrial-grade materials with high-end safety features like a built-in non-resumable fuse, grounded element, and flame-retardant guard. With temperature precision to ±1°F and advanced control circuitry, this heater is built to last—and certified to meet aquarium safety standards.

Key Highlights:
- 19mm titanium tube with nickel alloy coil for extreme durability
- Built-in fuse and flame-resistant safety guard
- True grounded design with waterproof power cord
- Temperature range: 68°F–92°F
- UL and CSA certified components
The Helio Smart Heater is built with solid-state PTC ceramic chips for intelligent, self-regulating heat and maximum safety. Dual titanium heating elements and a smart controller ensure reliable performance, with fail-safe protection, audible alarms, and magnetic mounts. Ideal for reef tanks and high-value systems.

Key Highlights:
- PTC ceramic tech with dual safety redundancy
- Includes smart controller with remote sensor
- Titanium elements with magnetic holders
- Factory presets and fully adjustable temp/alarm ranges
- Sizes: 100W–1000W (single and dual-element versions)
- 5-year manufacturer warranty

Choosing the Right Temperature Control Gear for Your Aquarium:

Aquarium Heaters:
We offer a variety of heaters ranging from simple glass units to durable titanium models with external controllers. Ideal for maintaining consistent temperatures in reef tanks, many of these heaters include built-in safety features like auto shutoff and overheat protection. Whether you're running a nano tank or a large SPS system, there's a reliable option to match your volume and wattage needs.


Aquarium Chillers:
Chillers are essential for reef tanks exposed to high ambient temperatures, intense lighting, or enclosed cabinets. Available in multiple horsepower ratings, they help prevent temperature spikes by actively cooling the water. Most units integrate with external controllers or Apex/Hydros systems for hands-free regulation and can be plumbed inline with sump systems or return pumps.


Digital Thermometers:
Accurate temperature readings are a must. Digital thermometers offer a quick and clear way to monitor water temperature at a glance. Choose from stick-on, probe-based, or wireless models — many with high/low alarms for extra peace of mind.


Optimizing Temperature Control Performance

Size Heaters Based on System Needs:
Select a heater that aligns with your tank’s total water volume and typical ambient temperature range. Larger systems or tanks in cooler environments may require higher wattage or dual heater setups to maintain stability.


Use a Reliable External Controller:
Pairing your heater or chiller with an external controller improves accuracy and adds a layer of protection. Many reefers integrate temperature control into their Hydros or Apex system for precise automation and safety cutoffs.


Avoid Placement Near Flow Outlets:
Install heaters in areas with steady but indirect flow, such as a sump return chamber. This helps distribute heat evenly and ensures the temperature sensor reflects the tank’s actual average temperature.


Monitor Ambient Room Conditions:
Lighting, cabinet ventilation, and room temperature can all influence tank heat. Chillers may be necessary in warmer climates, enclosed stands, or setups with powerful LEDs that raise water temperature over time.


Use Dual Temperature Sensors for Accuracy:
Running two probes in different sections of your system adds redundancy and helps verify accuracy. It’s a simple way to catch discrepancies and fine-tune your automation setup.


Expert Tips

Use Two Smaller Heaters Instead of One Large Unit

If a heater fails, a dual-heater setup reduces the risk of major temperature swings. Each heater can run at half the required wattage, providing redundancy and more stable heating control.


Calibrate and Verify Thermometers Periodically

Even digital thermometers can drift over time. Compare readings across two devices or check against your controller’s probe to ensure accurate monitoring. Replace any unit that consistently reads out of range.


Place Chillers in Well-Ventilated Areas

Chillers produce heat as they operate. Install them in an open, ventilated space—preferably outside the cabinet—to ensure efficient performance and prevent overheating.


Set Your Controller with a Temperature Buffer

Avoid rapid on/off cycling by setting a small temperature buffer (e.g., 0.5–1°F or 0.3–0.5°C). This helps reduce wear on heating and cooling equipment and prevents unstable fluctuations.


Keep Backup Heating or Cooling Equipment on Hand

Temperature is one of the most critical parameters in reef keeping. Having a backup heater or fan ready can be a tank-saver in the event of equipment failure or power outage.


Installation & Maintenance

Installing Your Temperature Equipment

Heaters:
Install heaters in areas of consistent water movement, such as a sump chamber or near a return pump in the display tank. Submersible heaters should always be fully underwater, and placed horizontally or at a slight angle for best heat distribution. Use secure mounting brackets or suction cups to avoid shifting.


Chillers:
Chillers are typically plumbed inline with a return pump or dedicated feed line. Place them in a well-ventilated area outside the stand to prevent heat buildup. Ensure the flow rate matches manufacturer recommendations and use unions or quick-disconnects to make maintenance easier.


Thermometers:
Position digital probe thermometers away from heaters or direct lighting to avoid skewed readings. Stick-on or wireless models should be mounted at eye level for easy visibility and checked regularly for battery life or sensor drift.


Routine Maintenance Tips

  • Wipe Down Equipment: Salt creep and dust can accumulate on heaters, cables, and chiller vents. Wipe surfaces monthly with a dry cloth and inspect for corrosion or damage.

  • Clean Chiller Coils and Intake Screens: If your chiller has a fan or air intake, clean it regularly to maintain airflow and prevent overheating.

  • Test for Heater Accuracy: Compare readings across multiple devices (digital thermometer, controller probe, etc.) to confirm consistency. Replace any heater that shows erratic behavior or fails to maintain target temperature.

  • Replace Batteries as Needed: For digital thermometers or temperature monitors, check battery life every few months to ensure your readings remain visible and reliable.

  • Inspect Mounting Hardware: Re-seat suction cups, brackets, and clips as needed. Equipment that slips out of place can lead to incorrect readings or inefficient heating/cooling.

Heaters, Chillers & Thermometers FAQs

How do I know what size heater my tank needs?

Heater sizing depends on your tank’s water volume and the difference between room temperature and your target tank temperature. When in doubt, using two smaller heaters instead of one large unit provides better redundancy and stability.

Do I need a chiller for my reef tank?

A chiller is recommended if your tank runs hot due to lighting, ambient room temperature, or enclosed cabinetry. If you consistently see temperatures above 80–82°F, especially in SPS-heavy systems, a chiller can help prevent heat-related stress.

Where should I place my thermometer?

Place digital probe thermometers in an area with consistent flow, away from heaters or direct light. Avoid corners or stagnant areas, as they may not reflect the tank’s average temperature accurately.

Can I control heaters and chillers with a controller?

Yes. Both Hydros and Neptune controllers can automate temperature regulation using probes and programmable outlets. You can set target temperature ranges, safety shutoffs, and alerts for peace of mind.

How often should I check or replace my thermometer?

Digital thermometers should be checked monthly against another reliable source, especially if not paired with a controller. Replace any unit that consistently reads inaccurately or loses battery power frequently.