Gentle, Low-Watt Density Heating for Precision Fermentation Control.

This fermentation heating solution features low watt-density output and delivers consistent, even heat across the sides of your fermenter. Its gentle, controlled warmth is safe for use with PET fermenters like the FermZilla, Apollo, or Fermonster, without the risk of warping or melting even when empty.

Unlike other fermentation heating options that risk hotspots, plastic melting or warping, the RAPT Heating wrap is constructed to be safe for continuous contact with PET and HDPE fermenters, making it ideal for both beginners and advanced brewers seeking reliability and peace of mind.

Whether you're fermenting ales in winter or trying to dial in a saison at higher temps, the RAPT Heating Wrap Belt is a reliable, brewer-tested heating solution.

Features:

• Low watt density: The wrap-around design provides full-contact heating around the vessel, eliminating cold spots and maintaining an even fermentation temperature across your brew.

• Safe for Plastic Fermenters: Low-wattage design (30W) delivers effective heating without the risk of damaging or melting plastic, even when the fermenter is not full.

• Velcro Straps: Integrated Velcro straps ensure a snug, secure fit around various fermenter sizes. No slipping, taping, or makeshift mounting required.

• Broad Compatibility: Suitable for most fermentation vessels up to 30L in volume, including popular PET and HDPE styles commonly used in homebrewing.

• Plug-and-Play: Connect directly to standard AU power (220–240V) with no special wiring or modifications needed. 

Recommended Use:

For optimal fermentation control, pair the RAPT Heating Wrap Belt with a temperature controller such as the RAPT Temperature Controller or any compatible thermostat unit. This allows you to monitor and maintain precise temperature ranges, essential for consistent yeast performance and producing cleaner, more predictable beer profiles.

Specifications:

Dimensions: 100cm x 25cm (plus Velcro straps)
Voltage: 220–240V
Power Output: 30 watt
Plug Type: AU Standard