Skip to main content

Send Us a Message

Search

AC Infinity Thermoforge S7 1000W Plant Heater

starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
  • 1000W output with 10 precision heating and air intake levels
  • Individual PTC plates use PWM control to avoid harsh on and off cycling
  • Dual 4-inch duct ports for open-loop intake or closed-loop circulation
  • View More Details

Earn 99 points for shopping and get $0.99 off your next order. Join Harvest Club for free.

Questions? Talk to a specialist. Mon–Fri, 9am–5pm PST
Free Shipping On Most Items* To the lower 48
Transparent Pricing Backed w/ price match guarantee
4.8/5 Rating 1938+ verified reviews
Secure Checkout SSL encrypted payments

Send Us a Message

VOLUME PRICING

Commercial & Bulk Purchasing

We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

Commercial Inquiry

Contact Information
THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are choosing manual control because you want to set specific power levels without an AI guessing your needs.
  • You are using dual ducting to stabilize temps because drawing cold air directly from outside causes too much shock.
  • You are adding a heater because your facility HVAC cannot keep up with lights-off temperature drops in the winter.

What We Found

  • Most small heaters just blast heat then stop, but the PWM control here maintains a much steadier output.
  • We like the dual duct ports because they let you pull in fresh air and warm it up before it ever touches a leaf.
  • Connecting this to a UIS controller is the move if you want to track heat data on your phone while away.

What Users Say

  • Users who prefer direct dial control say they feel more in command than when letting an algorithm guess the timing.
  • Growers who switched from space heaters say the tip-over alarm makes them feel much safer leaving the gear overnight.
  • People using the intake mode say their canopy temperatures stay within a two-degree range even during winter.

AC Infinity THERMOFORGE S7, Plant Heater 1000W with 10 Heating and Air Intake Levels

Need reliable heating power without the complexity of AI programming? The AC Infinity Thermoforge S7 delivers straightforward 1000W climate control with 10 true heating levels and fresh air intake modes through precision PWM control. This ETL-certified heater provides the same powerful output and dual ducting flexibility as the T7 model, but with manual level control for growers who prefer direct management over adaptive automation.

The Thermoforge S7 utilizes individual PTC plates with pulse-width modulation to deliver genuine 10-level heating control, not crude on/off cycling. Dual 4-inch duct ports enable flexible configuration—run open-loop for fresh air exchange or closed-loop for maximum heat efficiency. Switch seamlessly between heat mode for warming your space and fresh air intake mode for temperature stabilization, providing the versatility needed to sustain optimal growth year-round without automated intervention.

Built to the same industrial standards as the AI-powered Thermoforge T7, the Thermoforge S7 features comprehensive safety protection including tip-over alarms, flame-retardant materials, and overheat protection with auto-restart. UIS platform connectivity unlocks WiFi app access for remote monitoring, data tracking, and advanced automations that coordinate heating with your entire environmental system via a UIS smart controller. Designed exclusively for controlled indoor environments with 30-65% RH incoming airflow, this 1000W heater delivers professional-grade climate management with straightforward manual control.

Features

1000W PWM Precision

Individual PTC plates with pulse-width modulation deliver 10 true heating levels or fresh air intake for balanced climate control.

Dual Ducting Flexibility

4-inch dual ports support open-loop fresh air exchange or closed-loop configurations for maximum heat efficiency.

ETL-Certified Safety

Tip-over alarms, flame-retardant materials, and overheat protection with auto-restart provide industrial-grade reliability.

Manual Level Control

Direct control over 10 heating and air intake levels without AI automation for growers who prefer hands-on management.

UIS™ Integration

WiFi app connectivity enables remote monitoring, data tracking, and advanced automations for coordinated climate control.

What's Included

  • 1x Thermoforge S7 Plant Heater
  • User Manual
  • Quick Start Guide

Specifications

Specification Value
Manufacturer AC Infinity Inc.
Product Model AC-SFS7
UPC Code 819137025196
Unit Dimensions 8.66 x 7.00 x 10.00 in. (22.0 x 17.8 x 25.4 cm)
Duct Size 4.00 in. (10.2 cm)
Available Modes Heating, Fan
Control Range 10 Levels
Max Power Draw 1000 W
Voltage 120V AC
Current 10 A
Operating Temperature 14 to 140ºF
Operating Humidity 30 to 65% RH

Frequently Asked Questions

What's the difference between the Thermoforge S7 and T7 models? +

Both models deliver identical 1000W heating power through the same PTC plate technology. The key difference is control method: the AC Infinity Thermoforge T7 features adaptive AI that continuously learns your environment and makes predictive adjustments automatically, while the S7 provides manual control over the 10 heating and air intake levels. The S7 is ideal for growers who prefer direct hands-on management, while the T7 suits those wanting set-and-forget predictive automation.

How do I switch between heating mode and fresh air intake mode? +

The Thermoforge S7 allows you to manually select between heating mode (which activates the PTC plates to warm air) and fan mode (which runs the fan without heating for fresh air intake). Each mode offers 10 adjustable levels for precise control. This flexibility lets you warm your space when temperatures drop or draw in cooler air to stabilize conditions, providing year-round climate versatility with straightforward manual selection.

Can I use the S7 with UIS controllers even though it has manual controls? +

Yes, the Thermoforge S7 is fully compatible with UIS controllers and the AC Infinity app. While the S7 uses manual level control instead of AI automation, UIS connectivity still provides WiFi remote access, real-time monitoring, historical data tracking, and the ability to create advanced automations that coordinate the heater with other environmental devices.

What are the electrical safety requirements for the S7? +

The Thermoforge S7 draws 1000W at 10A and must be plugged directly into a grounded wall outlet with surge protection. Never use extension cords or power strips as this can cause overheating or melting. These requirements are identical to the T7 model and ensure safe operation of the high-wattage heating elements without voltage drops or fire hazards.

Does the S7 have the same safety features as the AI-powered T7? +

Absolutely. The Thermoforge S7 is built to the same ETL-certified safety standards as the Thermoforge T7, featuring tip-over alarms, flame-retardant materials throughout the housing, and overheat protection that automatically shuts down the heater if internal temperatures exceed safe limits.

What size grow space can the 1000W S7 effectively heat? +

Coverage depends on ambient temperature, insulation quality, and tent size. At 1000W maximum output, the Thermoforge S7 works well for medium to large grow tents, such as a 4x4 grow tent, in moderately cold environments. The dual ducting configuration and 10-level control allow you to fine-tune output for your specific conditions.

Why is there a 65% RH humidity limit for operation? +

The Thermoforge S7 is designed for environments where incoming airflow stays between 30-65% RH. Higher humidity can cause condensation on internal components. Never use plant humidifiers in closed-loop setups or operate in high-humidity areas—mist can enter intake ducting and harm the heater.

Do I need to purchase ducting separately for the S7? +

Yes, the Thermoforge S7 requires separate 4-inch flexible ducting to operate. The dual 4-inch ports are designed for flexible integration into your tent ventilation system, allowing you to configure open-loop or closed-loop setups based on your specific heating needs.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

10+
Years of Specialist Knowledge
4.8★
Over 1,900 Verified Reviews
50,000+
Growers Served
120+
Top Equipment Brands in Stock