Noritz NRCB Combi Boiler
Tankless combi boiler providing home heating and continuous domestic hot water from one unit.
Best for
Combining home heating and endless hot water in one wall-mounted unit.
Skip if
You have very high simultaneous hot water demand across many fixtures.
What is Noritz NRCB Combi Boiler?
The NRCB series is Noritz's combination boiler, which handles both space heating and domestic hot water from a single wall-mounted appliance. That combination is the point: instead of a boiler for the radiators and a separate tank water heater, one unit does both, freeing the floor space a tank would occupy and removing the standby heat loss that comes with keeping a tank hot around the clock. Because it is tankless on the hot water side, supply is continuous rather than limited by tank capacity, so back-to-back showers do not run out. Noritz is a tankless water heating specialist with residential and commercial ranges, and supports the NRCB with a sizing guide, plumbing diagrams, BIM and Revit files, installer training, a PROCard programme and installer and servicer locators.
SpecificationsAI-estimated
Key Features of Noritz NRCB Combi Boiler
Use Cases for Noritz NRCB Combi Boiler
Replacing a boiler and tank
Consolidating two appliances into one wall-mounted unit.
Space-constrained homes
Recovering the floor area a tank water heater occupies.
Back-to-back showers
Continuous tankless supply rather than a finite tank volume.
New build specification
BIM and Revit files support design-stage specification.
Pros & Cons of Noritz NRCB Combi Boiler
Pros
- Replaces two appliances with one wall-mounted unit
- Continuous hot water with no tank to run out
- Frees the floor space a tank would take
- Strong installer documentation and training infrastructure
Cons
- Requires professional installation and correct sizing
- Pricing runs through installers rather than being published
- Combi units can struggle with simultaneous heavy hot water draws
Frequently Asked Questions
What does a combi boiler do?
It provides both home space heating and domestic hot water from a single unit, replacing a separate boiler and tank water heater.
Will hot water run out?
No. The hot water side is tankless, so supply is continuous rather than limited by tank capacity.
How do I size it?
Noritz publishes a product sizing guide, and its installer network can size the unit to a home's demand.
Can I install it myself?
No. It requires professional installation. Noritz provides installer training, locators and a PROCard programme.
Pricing Overview
View full pricing →Detailed plans are not listed. Visit the official website for pricing information.
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