Architecturally inspired systems for superior style and performance

Thermally Broken Sliding Door

Designer Series ThermalHEART™ | Series 731

Thermally Broken Sliding Door

Thermally Broken Sliding Door

Choose Vantage® ThermalHEART™ thermally broken sliding doors for a perfect balance of energy-efficiency and style. It’s the best of both worlds!

  • Thermal insulation strip minimises the transfer of heat and cold.
  • Big, bold frames span wide openings up to 12 metres wide and 3 metres high.
  • Low Uw values deliver excellent insulation.
  • Combined with double-glazing they’re up to 33% more energy efficient than traditional double-glazed sliding doors.
  • Sliding panels run on heavy duty rollers for a lifetime of easy, smooth operation.
  • Unused frame tracks are filled with snap-in fillers for a neat, tidy appearance.
  • Sill can be recessed into a slab for a beautiful flush threshold.

*Maximum Panel Heights and Widths indicated are interdependent and subject to individual site conditions.

*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
Maximum Frame Height* 3000mm
Maximum Panel Width* 1995mm
Maximum Glass Thickness ≤ 32mm
SHGC Range 0.18 - 0.52
Uw Range 2.2 - 5.1

Why Choose ThermalHEART™ Sliding Doors

Wide Openings

ThermalHEART™ Sliding and stacking doors can span big, wide openings maximising light, views and ventilation for your home.

Custom Solutions

There is no such thing as standard when selecting ThermalHEART™ sliding doors. All our products are custom made to your exact requirements so you get the best possible solution for your project.

Cavity Slide Options

Now you see it! Now you don’t! The ThermalHEART™ Sliding door has a dedicated cavity sliding option allowing you to hide stacked door panels in the wall cavity.

Flush Sills

For a seamless transition to outdoor living spaces our sliding door sills can be recessed into the floor creating a beautiful, flush sill.


Key Features / Performance Characteristics

  • Series 731 sliding door incorporates ThermalHEART™ technology giving a true wide thermal break between the outside and inside faces. WERS (Window Energy Rating System) data shows that using the same IGU in a ThermalHEART™ sliding door is 32% more efficient than a standard non-thermally broken sliding door.
  • A major advantage with ThermalHEART™ in cold climates is the reduction in internal condensation. This saves potential damage to timber reveals and floor finishes.
  • ThermalHEART™ is also suitable for hot climates – ThermalHEART™ windows and doors will help to reduce the cooling load on airconditioning units in hot climates.
  • We offer ThermalHEART™ in a range of stocked colours including dual colour ClearMIST™ (Clear anodised external with Surfmist powder coat internal).
  • These sliding doors have been tested for compliance with the relevant Australian Standards and achieved a high water resistance of 300Pa, making the product suitable for most residential applications.
  • Low air infiltration makes these sliding doors suitable for air-conditioned buildings.
  • The extra strong door stiles in the sliding doors allow oversize door panels to be fabricated.
  • These sliding doors will accept Centor™ S4 screen.

Resources & Downloads


SpecifyAWS handles and locks which suit the Thermally Broken Sliding Door.

AWS complementary product options designed for use with Thermally Broken Sliding Door.

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