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Residential Tankless Water Heaters

by Noritz

Instead of wasting energy and money re-heating and storing water when it is not being used, tankless water heaters provide only as much hot water as needed, when it's needed. Noritz tankless water heaters are technologically advanced, with many features you're sure to love. With a model for any installation, you'll find the right Noritz for your application right here at your ultimate source, PlumbingSupply.com®.

Noritz NRC111 Series Condensing Tankless Water Heaters

These tankless water heaters feature:
  • Space and energy efficient - Wall-hung unit with fully modulating dual burner design precisely tracks the needs of the system, providing an accurate and efficient response to your hot water demands
  • Dual heat exchangers allow this unit to preheat incoming water for reduction of carbon dioxide and increase in efficiency.
  • 199,900 max BTU's for up to 11.1 GPM flow at a 35 degree temperature rise can provide enough hot water for up to 4 showers
  • Dual flame burner minimizes temperature fluctuations
  • Quick-Connect system allows two units to link together to satisfy higher flow demands
  • Build-in neutralizing system for condensation means less wear and tear on heat exchanger
  • Direct ignition means no standby pilot light to waste energy
  • Self-diagnostic onboard computer system
  • Battery back-up compatible
  • Recirculation compatible
  • Digital remote included
  • Minimum flow rate of 0.5 GPM
  • Dimensions: 24.2"h x 18.3"w x 9.4"d
  • Requires 3" or 4" venting
  • Click for more information

Model Description Natural Gas Propane
NRC111-DV Direct Vent Condensing Tankless Water Heater $1,583.12 $1,590.79 Enter a quantity and
NRC111-SV Indoor/Outdoor Condensing Tankless Water Heater $1,579.32 $1,584.15 Enter a quantity and
Due to size/weight and to ensure safe delivery, certain items ship by truck and have a $175 additional shipping fee per freight item.
Please select your type of address:
Commercial -or- Residential

Noritz NR98 Series Residential Tankless Water Heaters

These tankless water heaters feature:
  • Designed for mid-sized homes with up to 3 showers, this space efficient, wall-hung unit will help assure you never run out of hot water
  • 199,900 max BTU's for up to 9.8 GPM flow at a 35 degree temperature rise
  • Concentric vent option offers simple, single penetration installation, allowing for more installation location options
  • Quick-Connect system allows two units to link together to satisfy higher flow demands
  • Dual flame burner minimizes temperature fluctuations
  • Fully modulating design and automatic air regulator monitors internal temperature and adjusts burner according to need, providing an accurate and efficient response to your hot water demands
  • Direct ignition means no standby pilot light to waste energy
  • Commercial grade heat exchanger for superior durability
  • Self-diagnostic onboard computer system
  • Battery back-up compatible
  • Recirculation compatible
  • Digital remote included
  • Minimum flow rate of 0.5 GPM
  • Dimensions: 23.6"h x 13.8"w x 9.4"d
  • Uses Category III stainless steel venting
  • Click for more information

Model Description Natural Gas Propane
NR98-DVC Indoor Concentric Vent Tankless Water Heater $1,444.53 $1,432.54 Enter a quantity and
NR98-OD Outdoor Installation Tankless Water Heater $1,435.19 $1,436.70 Enter a quantity and
NR98-SV Indoor/Outdoor Tankless Water Heater $1,440.25 $1,441.69 Enter a quantity and

Noritz NR83 Series Residential Tankless Water Heaters

These tankless water heaters feature:
  • Designed for one to two bath homes
  • Space and energy efficient - Wall-hung unit with fully modulating dual burner design precisely tracks the needs of the system
  • 180,000 max BTU's for up to 8.3 GPM flow at a 35 degree temperature riseread more about temperature rise
  • Concentric venting offers simple, single penetration installation, allowing for more installation location options
  • Eco-Burner provides reduced NOX emissions
  • Dual flame burner minimizes temperature fluctuations
  • Fully modulating design and automatic air regulator monitors internal temperature and adjusts burner according to need, providing an accurate and efficient response to your hot water demands
  • Direct ignition means no standby pilot light to waste energy
  • Commercial grade heat exchanger for superior durability
  • Self-diagnostic onboard computer system
  • Battery back-up compatible
  • Recirculation compatible
  • Digital remote built-in
  • Minimum flow rate of 0.5 GPM
  • Dimensions: 23.6"h x 13.8"w x 9.4"d
  • Uses Category III stainless steel concentric venting
  • Click for more information

Model Description Natural Gas Propane
NR83-DVC Indoor Concentric Vent Tankless Water Heater $1,268.63 $1,269.62 Enter a quantity and

Accessories for Noritz Tankless Water Heaters

Brass Pressure Relief Valves

Image Description Size Price & Quantity
Pressure relief valve Brass Pressure Relief Valve
  • A pressure relief valve is required for all tankless water heaters. In some areas, a temperature and pressure relief valve is required. Check your local plumbing code for more information
3/4" FIPS x 3/4" MIPS $14.67 Enter a quantity and

Brass Temperature & Pressure Relief Valves

Image Description Size Material Price & Quantity
Pressure and temperature relief valve Brass Temperature and Pressure Relief Valve 3/4" FIPS x 3/4" MIPS FOR Potable Water $59.65 Enter a quantity and
3/4" FIPS x 3/4" MIPS NOT FOR Potable Water $13.95 Enter a quantity and

"The Isolator" Isolation Valves

Image Description Size Price & Quantity
Isolation valve set Isolation Valve - Set   (Hot & Cold) 
  • Includes pressure relief valve. Complete inlet/outlet valve system that provides everything you need for a secure installation including full port testing and flushing of the system with easy to install union connections. Includes pressure relief valve.
    2014 Federal Safe Drinking Water Act compliant
3/4" FIP Union x 3/4" FIP $99.62 Enter a quantity and
Isolation valve set Isolation Valve - Set   (Hot & Cold)  
  • Includes pressure relief valve. Complete inlet/outlet valve system that provides everything you need for a secure installation including full port testing and flushing of the system with easy to install union connections. Includes pressure relief valve.
    2014 Federal Safe Drinking Water Act compliant
3/4" FIP Union x 3/4" Sweat $99.42 Enter a quantity and

Gas Connectors

Image Description Size Price & Quantity
Stainless gasflex Stainless Gasflex 1" OD (3/4" ID) x 24"
with adapter to 3/4" FIP x 3/4" MIP
$36.33 Enter a quantity and
Gas ball valve Gas Ball Valve 3/4" $8.28 Enter a quantity and

Ball Valves

Image Description Size Price & Quantity
3/4inch ball valve FIP Ball Valve   3/4" FIP $13.64 Enter a quantity and
3/4inch ball valve sweat Ball Valve   3/4" Sweat $13.65 Enter a quantity and
Stainless steel nipple adapter Stainless Steel Nipple Adapter 3/4" MIP x 1-1/2" Long $3.97 Enter a quantity and
 Order 10, 50, 100 or more of the same item for additional savings!
Pricing discounts will show up in your shopping cart.

Flexible Corrugated Water Flexes

Image Description Material Size Length Price & Quantity
Stainless steel water heater flexes Flexible Corrugated Water Flex Stainless Steel 3/4" FIP x 3/4" FIP 18" $7.44
3/4" FIP x 3/4" FIP 24" $8.27 Enter a quantity and
Copper / Stainless Steel 3/4" FIP x 3/4" Nominal Sweat 18" $7.61
3/4" FIP x 3/4" Nominal Sweat 24" $8.34 Enter a quantity and

FloodStop Systems for Water Heaters

Features:
  • Easily prevent water damage from a leaking water heater with this unique device
  • The unit automatically shuts off water supply to the water heater and sounds an alarm leaving all other household fixtures and appliances operational
  • Provides additional protection by requiring AA batteries to be inserted to protect in case of a power outage (batteries not included)
  • Controller will operate normally without batetries installed but will continue to beep until they are inserted
  • Can easily be installed in fifteen muinutes
  • Full-port motorized ball valve (brass)
  • 2014 Federal Safe Drinking Water Act compliant
FloodStop Components:
  • Motorized Full-Port Ball Valve (3/4 inch NPT pipe threaded)
  • New Style Control Unit (with Battery Backup 4 X AA Size)
  • Water/Leak Sensor (1-1/4" X 7-1/2")
  • AC Power Adaptor (or use 4 X AA Batteries as Primary Power Source)
  • Output Contact Wires (2)

Model # Description Price & Quantity
FS 3/4-NPT-V4 Water Heater FloodStop System - 3/4" Pipe Threaded
Works with any 3/4" MIPT supply line - rated 0-180 psi
$149.95 Enter a quantity and
FS 3/4-C-V4 Water Heater FloodStop System - 3/4" Compression
Works with any 3/4" copper applications - rated 0-180 psi
$166.49 Enter a quantity and

Make sure to follow all of the manufacturer's instructions and directions by performing the proper maintenance and inspections
to ensure that you are fully protected from flooding - this is ever-so-important with (man-made) safety devices as they will eventually fail.


Related Items and Accessories



Please note: For potential safety reasons, we do not recommend using PVC to vent gas tankless water heaters. For the best results, we recommend using Category 3 stainless steel gas vent pipe for all gas tankless water heaters.



Frequently Asked Questions

Q. "What does the term "temperature rise" mean?"
A. Temperature rise is the amount the heater raises the temperature of the incoming water, based on the flow rate shown of that water.

Q. "How does a tankless heater provide hot water without a storage tank?"
A. Tankless water heaters heat on demand. The water is heated as it flows through the unit. Automated valves control water and gas flow so that your water comes out at the temperature you set it to.

Q. "What's the difference between a conventional flue and a direct vent?"
A. A conventional flue is what most people are familiar with. It typically consists of a double-wall flue pipe going from the top of the heater through the roof, venting outside. The fixture draws its combustion air from the space around it (utility room, garage, hallway, etc.). A direct-vent unit vents and draws its combustion air through a specially designed pipe from the outside via an adjacent wall.

Q. "What make a condensing tankless water heater different?"
A. Noritz condensing water heaters use a dual heat exchanger system to increase efficiency by using the residual heat from the exhaust temperature, which is captured by the first, corrosion-resistant stainless steel heat exchanger, to preheat incoming water before it runs through the main commercial grade copper heat exchanger. This reduces carbon dioxide emissions and increases efficiency. This also means vented exhaust is lower in temperature than other tankless water heater designs.

Q. "How does the Hot Water Heater Scale Inhibitor System prevent corrosion?"
A. It forms a thin protective layer on the inside of pipes and metal parts. This film or layer is microscopic in thickness and will not build up over time.

Q. "What are the best reasons to install a Scale Inhibitor System?"
A. A Scale Inhibitor System helps protect the system by reducing scale buildup and adding to the longevity and efficiency of the heater.

Q. "Can I use PVC to vent tankless water heaters?"
A. The idea of using PVC venting instead of Category III stainless steel venting for condensing tankless water heaters is that it will save money on venting since the exhaust temperatures are specified by the manufacturer as within the capabilities of PVC to handle safely. However, we never recommend PVC for venting. In the real world, gas water heaters are rarely maintained to their ideal, which eventually results in raised exhaust temperatures. These raised exhaust temperatures quickly pass beyond what PVC can safely handle and overheated PVC can release dangerous fumes and even collapse as it fails. For this reason, there is a higher incident of dangerous issues associated with PVC venting on gas tankless water heaters and we cannot, in good conscience, recommend PVC venting for gas water heaters.


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