If you keep a reef tank in a warm climate (or you simply want a reliable backup for when your home AC gives up in August), the TECO Chiller lineup deserves your attention. I’ve been living with these new TECO tank chillers and chiller/heater combos long enough to call them a genuine step up: efficient, environmentally friendly, tool‑free to maintain and—best of all—app‑controllable for real‑time temperature alerts.
Table of Contents
- Why this TECO Chiller Matters
- Models & Key Specifications
- What Really Sets the TECO Chiller Apart
- Installation & Practical Tips
- Conclusion
- FAQ
Why this TECO Chiller Matters
Temperature control is arguably the single most critical piece of equipment for a healthy reef system. The TECO Chiller series tackles this in several meaningful ways: they use a low‑GWP refrigerant, robust corrosion‑resistant internals, easy maintenance design features, and an optional Wi‑Fi module that provides app control and instant alerts. That combo is rare in our hobby—and it’s exactly what reefers in hot climates need.

Models & Key Specifications
The TECO Chiller family comes in two model lines:
- TK series – chiller only
- TKH series – chiller + integrated heating element
Each is available in three sizes: TK/TKH‑500, TK/TKH‑1000 and TK/TKH‑2000. Their ratings and core specs:
- Rated aquarium sizes: TK500 → up to 120 gallons; TK1000 → up to 200 gallons; TK2000 → up to 500 gallons
- Temperature range: 41°F minimum to 95°F maximum (approx. 5°C–35°C)
- Optimal working range: 65°F–85°F with a tight ±1°F differential
- Plumbing: 3/4" threaded inlet/outlet with 5/8" barbed fittings
- Footprint: compact 12" × 12"
- Included fittings: rotatable 90° barbs, inline squeeze tube clamps, rubber tubing reducers, hose clamps, and an air conveyor key

Quick installation note: TECO supplies everything except your pump and the 5/8" tubing. Make sure water is flowing through the chiller before you plug it in.
What Really Sets the TECO Chiller Apart
R290 Refrigerant — Efficiency and Environment
One of the biggest differentiators is the refrigerant. Rather than the more common R410A or R134a, TECO opted for R290. That choice brings two huge benefits:
- Up to 50% more efficient cooling compared to commonly used refrigerants, meaning lower power bills and faster recovery after heat spikes.
- Massively lower GWP — R290 has a global warming potential of about 3, compared with R134a’s ~1,430. That’s a dramatic environmental win.
Yes, R290 systems and the higher‑grade components they require cost more to produce, but the long‑term efficiency and lower environmental impact make that tradeoff worthwhile.

Titanium Heat Exchanger — Built for Reef Conditions
TECO uses a titanium heat exchanger, which is extremely corrosion‑resistant and ideal for saltwater applications. That’s a professional‑grade feature that extends the service life of the chiller in harsh marine environments.

Tool‑Free Maintenance — Magnets & Latches
Maintenance on these units is genuinely painless. The front panel is held on with magnets so you can pop it off in seconds, remove the washable dust filter, clean it, and snap everything back in place—no tools required. The air conveyor on top is secured with two half‑turn latches and an included key, again eliminating the need for screwdrivers.

Digital Controls + Optional Wi‑Fi Monitoring
The onboard digital thermostat is straightforward: set temperatures to one decimal place, switch between Celsius and Fahrenheit, tweak hysteresis and calibrate the probe. On TKH models you can enable/disable the heating function too.
But the standout is the optional Wi‑Fi module. Plug it in, use the app to monitor temperature, adjust settings remotely, and receive instant alerts if your aquarium drifts out of range. This is the first aquarium chiller I’ve seen that combines app control with live temperature monitoring—and the module utilises magnets so it just sticks neatly to the side of the unit. Pretty sweet.

"This is the first aquarium chiller that I've ever seen that has both app control and temp monitoring, which is a big win in my books." — Bulk Reef Supply
Installation & Practical Tips
- Always prime your pump and confirm water flow through the chiller before powering it up.
- Use the included 90° rotatable barbs if space is tight—TECO thought through small‑space installations.
- Keep the front dust filter clean; it helps maintain airflow and cooling efficiency.
- If you’re concerned about R290 safety, consult a certified technician—R290 is flammable in certain concentrations, but manufacturers design systems to be safe when installed and serviced correctly.
Conclusion
If you want a professional‑grade TECO Chiller that’s energy efficient, kinder to the planet, built for saltwater, and offers modern app control with instant alerts—these units are hard to beat. TECO clearly focused on real Reef keeping needs: performance, durability and convenience. If that matches your reefing mantra, these chillers are worth a close look.

FAQ
Is the TECO Chiller suitable for saltwater aquariums?
Yes. The titanium heat exchanger and corrosion‑resistant internals make it ideal for reef systems.
What is the difference between TK and TKH models?
TK is chiller only. TKH includes an integrated heating element so the unit can both heat and cool your aquarium.
How efficient is the TECO Chiller?
Thanks to R290 refrigerant, the TECO Chiller can be up to 50% more efficient at cooling compared to many conventional chillers, which translates to lower energy use and faster recovery times.
Does the TECO Chiller support remote alerts?
Yes—the optional Wi‑Fi module provides app control and real‑time temperature monitoring with alerts if temperature moves outside your set range.
How often should I clean the filter?
Check the front dust filter monthly; clean it whenever you notice dust buildup to keep airflow and efficiency optimal.
Where can I learn more or purchase one?
Check retailers that stock professional aquarium gear or in the USA and Canada contact Bulk Reef Supply for model options and compatibility guidance.
This article was inspired from the video TECO Just Changed the Chiller Game! | Drop a like and subscribe to show your support!
