DRU Flue systems explained

Balanced flue, powered flue or conventional flue
Before you buy a gas heater, you need to select the heaters and flue types that best suit your premises. Here are some of the benefits of each appliance and flue system?

Balanced Flue – Art, Style and Diamond series

• Flue consists of two concentric tubes. Outer tube draws fresh air for combustion, while waste gases are expelled via the inner tube
• Natural convection heating, quiet and more efficient than heating water
• Additional fran assistance on Diamond models
• No danger of freezing and no need for anti-corrosive additives
• Heater is up to maximum output in 30 minutes
• Heat distribution: 85% convection/15% radiant for perfect comfort
• Heat exchangers coated in Ceramet for longer life with extended warranty
• Can accommodate wall thicknesses from 70 to 980 mm.
• Die cast aluminium flue terminal 
• Integral modulating thermostat with capillary sensor
• Aerated steel burner with stainless steel head for positive and silent ignition. 
• No electrical supply required but can be connected to automatic time clock
• Terminal guards and Internal heater guards available 
• Natural or Propane gas

Powered flue – Kamara series

• Flue consists of two concentric tubes (100mm outer and 60mm inner) and can be core drilled using 105mm bit for quick installation 
• Flue extensions available up to 1 metre 
• Fan pulls air into a combustion chamber and pushes exhaust gases back outside 
• Electronic sequence control for continuous safety checks 
• Electronic spark ignition and Integral thermostat 
• Delivers heat at floor level with 15 minutes warm–up time 
• Cool touch and easy-clean outer casing 
• Set up for remote time clock connection 
• One piece outer casing for ease of servicing with lockable control panel 
• Terminal guards and Internal heater guards available 
• Extended manufacturer warranty on heat exchangers 
• Over 90% efficiency 
• Natural or Propane gas

Conventional Flue – S-Line and Pigalle

• Connects to existing chimney or flue pipe for flexibility of location 
• Natural convection (virtually silent in operation) 
• Free standing heaters 
• No electrical supply needed 
• Can be connected to a time clock if required 
• Integral modulating thermostat with capillary sensor 
• Natural or Propane gas