the heating element is covered with rust and scale, with screws on the background of the boiler, lying on a wooden table.
Portrait of happy girl taking shower with gel. She washing with puff

Takes the Heat!


  • Protects Tankless Water Heaters
  • Single Cartridge, Two-Stage Water Filtration
  • Meets Tankless OEM Warranty Specifications
  • Designed for All Gas or Electric Water Heaters
  • High-Flow Rates up to 40 GPM
  • 5 Micron Sediment Filter
  • For Residential Use
  • Easy Installation

Protects Water Heaters and Extends Longevity!

Nuvia Thermo Guard is a point-of-use tankless water heater filtration system for the reduction of sediment and limescale build-up. This system utilizes a proprietary filtration and media blend.

Mitigating scale build-up extends the life of both traditional and tankless water heaters. Left untreated, scale build-up results in significant damage, costly repairs, and higher energy costs. Just 1mm of scale on a heating coil can raise energy costs by 15%! Most, if not all, water heater manufacturers require scale-inhibition treatment in hard water areas or their warranty may be voided. When it fails, the high cost of replacement falls on the consumer alone!

2-Stage Filtration Process

  • Stage 1 | NW-Sediment Filtration
  • Stage 2 | NW-Scale Reduction Filtration