Rinnai recommends the installation of a Demand Duo system when hot water consumption has a predictable volume.

This is usually based on the number of people living in a particular building and their hot water usage or industrial machines that require regular peaks of water.

The Demand Duo unit is often used on flow and return systems that distribute the water around a building.

Features

• A short period of high hot water flow rate
• Various Heavy Duty Continuous Flow heater options available
• 444 Stainless Steel Storage Tanks with 250L and 315L storage volumes
• Vitreous Enamel Coated Storage Tanks with 270L, 330L and 440L storage volumes
• Large plumbing connections on storage tanks to cater for high flow rates
• Heat source can be located away from the tank to suit installation requirements per project
• Modular construction for ease of installation and transport
• Perfect for projects with a limited gas supply
• External or internal units available
• A single HD water heater Demand Duo (DD1) is a stand-alone appliance for ease of installation which is perfect for quick replacements
• Single Lift option of the heat source, primary pump(s) and controller(s) for fast site installation
• Dual Primary Pump(s) and Control System(s) available in back to back systems
• Innovative controller with push button interface and LCD display

Ideal for

• Hotels and motels
• Apartment blocks
• Student accommodation
• Shower blocks
• Commercial kitchens
• Commercial laundries

The product information on this website (comprising product brochures, warranty information, installation manuals, diagrams, specifications and representations) relates to current products. This information may be different for superseded products. For superseded products please contact Rinnai to confirm product information.