BRAEMAR ECOSTAR GDH 18KW 4.7* WK-TQ420N-EXT

SKU: WK-TQ420N-EXT
Regular price $1,877.00 AUD
In stock
Usually ships within 24 hours
What’s Included?

TQ3/4/EXTFLUKIT - BRA EXTERNAL FLUE KIT 075365
TQ420N - BRAEMAR ECOSTAR GDH 18KW 4.7*

Backed by a 5-year manufacturer’s parts warranty. Includes manual, must be installed by a licensed professional to maintain coverage.

The Braemar Ecostar GDH 18 kW – Model WK‑TQ420N‑EXT delivers full‑home, energy‑efficient ducted heating with a weather-resistant outdoor cabinet design for seamless external installation.

  • Capacity: 18 kW (ideal for larger homes or whole‑home ducted systems)
  • Fuel Type: Natural gas – designed for efficient residential ducted heating
  • Design: Weather‑resistant outdoor cabinet for external placement
  • Performance: Consistent warm‑air distribution across ductwork with zoned‑heating capability
  • Efficiency: 4.7‑Star rated for strong energy performance and reduced running costs
  • Comfort: Even temperature distribution with compatibility for smart controls and zoning


Perfect for year‑round comfort in expansive spaces, the Braemar Ecostar GDH 18 kW – Model WK‑TQ420N‑EXT combines reliable heating performance, external installation flexibility, and environmentally‑conscious design.

All care has been taken to ensure part numbers, descriptions, techincal accuracy, images and prices are correct, however errors may exist and manufacturers continual product development may result in changes to specifications.

For details on shipping and delivery, please visit our Shipping & Delivery page.

Your AC Hub system is backed by Manufacturer’s Warranty for parts, giving you peace of mind.

All air conditioning systems sold by AC Hub come with a 5-Year Full Manufacturer’s Warranty. For more information, please visit our Warranty page.