How We Control Our Tent Environment with the AeroLush C08: Cooling, Heating, Drying & Airflow in One Unit

A look inside our 4×4 tent with the full lighting system running; the AeroLush unit sits just outside the tent on the right, connected by compact ducting that keeps its footprint minimal while delivering precise cooling, heating, and drying power.

When we upgraded our lighting this cycle—400 watts of full-spectrum power, another 200 watts of support, plus sidebars—we solved one problem but created another: heat load.

High-performance LEDs are efficient, but powerful fixtures still generate more radiant heat than most 4×4 tents were designed to shed. With a full canopy, reflective walls, and a dense plant layout, it became clear that we needed a smarter, more unified way to manage temperature, humidity, airflow, and VPD.

Instead of juggling a heater, a portable AC, a dehumidifier, and multiple fans, we streamlined everything into a single device: the VIVOSUN AeroLush C08, a true 4-in-1 environmental controller.

Here’s how we integrated it—and how it now handles cooling, heating, drying, and airflow while working seamlessly with the AeroStream H19 19L humidifier.

Why Upgrading Lights Means Upgrading Climate Control

Lights are the engine of an indoor garden—and also its primary heat source.

Once we switched to a distributed lighting system, we noticed:

• Higher canopy temperatures

• More radiant heat around the LED boards

• Faster transpiration rates

• VPD swings throughout the light cycle

• Hot spots directly under fixtures

A tent can only dissipate so much heat on its own.
To maintain environmental stability, we needed precise control—not just of temperature, but of humidity, air exchange, and vapor pressure deficit.

That’s where the AeroLush comes in.

The AeroLush C08: A True 4-in-1 Environmental Solution

The AeroLush C08 features an intuitive onboard control panel for hands-on adjustments when needed, but most growers will let the smart controller and smartphone app automate everything behind the scenes.

Unlike traditional AC units or dehumidifiers, the AeroLush is designed specifically for small grow environments. It delivers:

• Cooling mode

• Heating mode

• Dry mode (dehumidification)

• Fan-only airflow mode

It’s portable, smart, app-controlled, compatible with the VIVOSUN ecosystem, and uses an external probe for canopy-level readings.

One machine becomes the heart of our tent’s entire climate strategy.

How the AeroLush Keeps the Tent Cool Under High-Output LEDs

The AeroLush C08 includes a dedicated window installation panel that makes venting simple and efficient. In summer, it exhausts hot air outside; in winter, we close the window and use the warm exhaust to gently heat the room.

When the lights come on, the AeroLush automatically takes over cooling.

Cooling Mode

• Removes heat generated by the 400W + 200W LED system

• Maintains consistent canopy temperatures

• Prevents VPD from spiking during peak light hours

• Keeps leaf surface temps in the optimal range for photosynthesis

Instead of heat gradually building throughout the day, temperature now stabilizes within minutes.

Heating Mode: Stability During Lights-Off Cycles

When lights go off, temperatures drop—especially in winter or early veg.

Heating Mode

• Prevents VPD collapse at night

• Keeps root zones in a healthy temperature range

• Stops humidity from skyrocketing due to cold air

• Protects clones and young plants from cold shock

Nighttime stability is one of the most overlooked aspects of indoor growing. The AeroLush solves it.

Dry Mode: Turning the Tent Into a Controlled Drying Room

This might be the most impactful feature.

Most growers improvise drying rooms. With the AeroLush, we simply switch the tent into:

Dry Mode

• Reduces excess humidity without dropping temperature too sharply

• Ideal for a controlled 60°F / 60% RH slow dry

• Preserves terpenes and cannabinoids

• Prevents mold during early hang-dry

• Lets us reuse the same tent post-harvest

One tent → veg → flower → dry. All with precision climate control.

We push cold air directly into the tent from the bottom while venting warm air out through the top—exactly where heat rises. The AeroLush C08’s tubing connects cleanly through the tent’s built-in duct ports, keeping airflow efficient and the canopy consistently cool.

Fan Mode: Gentle Airflow Without Changing Temperature

Sometimes the tent is already in the right zone—you just need air to move.

Fan Mode

• Circulates air evenly across the canopy

• Prevents microclimates

• Supports consistent transpiration

• Reduces condensation risk

• Strengthens stems gently

It keeps the tent “alive” without introducing unnecessary heat or cooling.

Working in Tandem with the AeroStream H19 Humidifier

If the AeroLush is the climate engine, the H19 is the humidity regulator.

With a 19-liter tank, canopy probe, and smart app integration, it ensures humidity never drops below what young plants or veg cycles require.

Together, they form a complete environmental loop:

• AeroLush cools → humidity rises → H19 stabilizes it

• AeroLush dries → H19 restores optimal RH

• AeroLush heats → VPD increases → H19 balances humidity

• AeroLush circulates air → H19 maintains vapor distribution

Temperature + humidity working together = controlled VPD.

Most growers underestimate how important humidity control is. This pairing keeps both sides of the equation balanced without constant intervention.

Real-World Results in Our Tent

A look at the complete climate ecosystem inside the tent: high-output LEDs, smart airflow, and tubing from the AeroLush C08 working together to keep temperatures and VPD stable from canopy to ceiling.

Since integrating the AeroLush + H19 system, we’ve seen:

• Stable temperatures across the entire light cycle

• VPD consistently staying within range

• Zero condensation on tent walls

• Faster root development

• Smoother transitions from day to night

• No overheating under peak intensity

• No humidity spikes after lights-off

Environmental stability removes a major variable from the grow—and eliminates the daily “panic check” most growers know too well.

Common Mistakes Growers Make Without Proper Climate Control

• Relying solely on inline fans for cooling

• Using a small room heater inside the tent

• Letting lights dictate temperature entirely

• Allowing humidity to spike after lights-off

• Over-drying late flower

• Using multiple devices that don’t communicate

• Trying to dry cannabis without true dehumidification

The AeroLush solves all these issues with a single unified system.

Summary: Light Is Power. Environment Is Precision.

Upgrading your lighting gives your plants energy.
Upgrading your environmental control turns that energy into predictable, healthy growth.

The AeroLush + H19 combination provides:

• Better temperatures

• Better humidity balance

• Better VPD consistency

• Better nighttime transitions

• Better drying conditions

• Better overall yields

A modern grow tent isn’t complete until it has a smart climate backbone.

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If you’re running powerful LEDs or thinking about upgrading your environmental control, now is a great time. VIVOSUN offers seasonal discounts on the AeroLush C08, the AeroStream H19, and other smart grow components.

Use my code Ed420 for additional savings on select VIVOSUN equipment.
Good climate control is one of the smartest investments you can make in a cannabis garden.