FASTflo Range WH/WHX/WHC continuous flow instantaneous Water Heaters

The FASTflo, continuous flow instantaneous range from Andrews Water Heaters are ideal for large homes or commercial applications. Unlike old instantaneous type water heaters, the revolutionary design measures the incoming water flow and temperature via the primary circuit board. It then modulates the burner up or down to meet hot water demand, with plus or minus one-degree accuracy.

A condensing version is now available.

• Hot water on demand, up to 89 efficiency (Gross)
• Safe and constant flow of hot water
• Auto ignition fitted as standard
• Compact and light for easy location and installation
• Accurate temperature settings form 37 ºC to 80º C
• Internal room sealed
• Factory fitted anti-frost protection on all external models
• Modulating burner and no stand-by heat losses
• Reduced risk of harmful legionella bacteria forming
• Scale inhibited by lack of stored water
• NEW FASTflo - PLUS condensing models available
• Low NOx technology
• External models - WHX56 and LWHX56