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SunBlaster Heat Sheet Propagation Heating Mat - 9.1" x 19.7"

  • Elevates root zone temperatures up to 20F above ambient room air
  • Consumes only 17 watts of power for energy-efficient operation
  • Fits industry standard 1020 propagation trays with a 9.1 x 19.7 inch footprint
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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are starting seeds indoors because your ambient room temperatures are too low to trigger consistent germination
  • You are cloning sensitive plant material because inconsistent heat causes fragile stems to wilt before roots develop

What We Found

  • We found that printing the instructions directly on the mat prevents the frustration of losing a manual
  • The 17-watt draw is low enough that we often run these on multi-tier shelves without tripping breakers

What Users Say

  • Users who transitioned from standard room temps to this mat report much higher success rates with early stage cuttings
  • Growers who put these under their propagation trays say they stopped seeing uneven growth across their starter batches

SunBlaster Heat Sheet Propagation Heating Mat - 9.1" x 19.7"

Are cold ambient temperatures stalling your seed germination cycles or causing fragile cuttings to wilt before they can root? Eliminate slow, uneven growth by providing targeted warmth directly to your plant's root zone with the SunBlaster Heat Sheet Propagation Heating Mat. Engineered to elevate root zone temperatures up to 20°F (11°C) above ambient room air, this specialized mat provides the consistent thermal foundation required to maximize cloning success rates and accelerate seedling development.

The SunBlaster Heat Sheet Propagation Heating Mat combines multi-layer durability with high-efficiency output, running safely on just 17 watts of power. Sized at 9.1 by 19.7 inches, its space-saving footprint fits perfectly beneath a SunBlaster Double Thick 1020 Propagation Tray. To ensure hassle-free operation for growers of all experience levels, the mat features comprehensive, easy-to-read instructions printed directly onto its surface. Bring stability to your indoor nursery shelf or use it as a component within a SunBlaster T5HO Mini Greenhouse Kit.

Features

🔥
Targeted Thermal Lift

Warms root zone areas up to 20°F (11°C) over ambient room temperatures for fast germination.

High Efficiency Output

Runs on an energy-saving 17-watt configuration to minimize overhead utility costs during continuous use.

📐
Perfect 1020 Fit

The 9.1" x 19.7" dimensions sit perfectly beneath a SunBlaster 1020 Quad Thick Tray or other industry-standard seedling and cloning trays.

📝
On-Mat Instructions

Features complete operational guidelines printed directly on the mat surface so they never get lost.

What's Included

  • SunBlaster Heat Sheet Propagation Heating Mat

Specifications

Specification Value
Rated Wattage 17 W
Dimensions (Mat Surface) 9.1" L x 19.7" W (23 x 50 cm)
Packaged Dimensions 9.0" L x 21.0" W x 1.0" H
Shipping Weight 1.0 lbs

FAQ

How much does the heat sheet increase tray temperature? +

This heating mat is engineered to warm the delicate root zone up to 20°F (11°C) above the ambient room air temperature. This steady baseline warmth is crucial for triggering prompt seed germination and boosting root development in new cuttings.

Do I need an external digital controller to operate this mat? +

While the mat runs perfectly on its own by delivering a constant warmth level, pairing it with an external thermostat like the SunBlaster Digital Heat Sheet Controller lets you dial in exact, targeted temperatures for temperature-sensitive plant varieties.

What size propagation trays will fit neatly on this surface? +

The mat features surface dimensions of 9.1 by 19.7 inches (23 x 50 cm). This specific sizing layout is designed to comfortably fit industry-standard 1020 seedling flats and cloning setups with zero wasted edge space.

Is it safe to place my soil trays directly on top of the mat? +

Yes, your heavy-duty plastic propagation trays or cell plugs should sit directly flush on top of the heat sheet surface. To further optimize the environment, consider adding a SunBlaster 7" Humidity Dome to trap heat and moisture where roots develop.

Are there instructions included for setup and safety guidelines? +

Yes, for your convenience, complete operational steps and safety warnings are printed directly onto the surface of the mat. This ensures you always have quick access to usage guidelines without worrying about misplacing a paper manual.

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

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