5-year compressor warranty on every unitWilliams range held in UK stock+44 7426 370650
Williams Ducted 18,000 BTU
Williams Ducted

Williams Ducted 18,000 BTU

Model WDA-18HWFNX / WOX330U-18HFN8
4.7 · 14 reviews
A++A+++ConcealedA+++ heating

Hidden entirely in the ceiling void, feeding several rooms through ductwork. Nothing is visible but the linear grilles — the choice for listed interiors and high-end residential.

Price on request
Message or call us with your room size and we'll come back the same day with a price — supplied, or fully installed.
5-year compressor warranty · 3 years on the indoor unit
Supply only, or fitted by our F-Gas registered engineers
Full documentation pack, energy label and manuals included
5.28 kW
Cooling capacity
6.01 kW
Heating capacity
32–50 m²
Room size
36.5 dB(A)
Quietest setting
6.5
Seasonal efficiency (SEER)
4.1
Seasonal efficiency (SCOP)

Hidden entirely in the ceiling void, feeding several rooms through ductwork. Nothing is visible but the linear grilles — the choice for listed interiors and high-end residential.

  • Completely concealed in the ceiling void
  • A+++ seasonal efficiency in heating
  • Serves multiple rooms from one indoor unit
  • Return air filter accessible from below
  • Three-phase outdoor units available on larger sizes
  • Wired controller included

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