Operating Guide

Rinnai Tankless Water Heaters deliver
trusted quality and proven reliability you
can count on. From efficient, durable
products to experienced support, there is
simply no better choice than Rinnai.
• Wide range of quality product offerings
• Easy, safe ventilation options
• 24/7 technical support for professionals
• Engineering application support for
commercial customers
• Industry-leading recirculation capabilities
• More venting solutions on the same model
RINNAI ULTRA SERIES - RUR MODEL
11
CONDENSING TANKLESS TECHNOLOGY
1
Concentric Vent Stack
2
Dual Pipe Vent Option
3
Burner & Gas Manifold
4
Primary Heat Exchanger
5
Secondary Heat Exchanger
6
Integrated Condensation Trap
7
Built-In Circulation Pump
8
Internal Bypass Line
9
Modulating Gas Valve
10
Built-In Surge Protector & PC Board
Rinnai introduces the first and only
tankless water heater in the industry to
offer both concentric and PVC/CPVC
venting and integrated recirculation on
the same model.
2
5
4
6
10
9
8
7
3
1