Noritz Tankless Water Heaters
Support & Parts
ENTER A MODEL OR PART NUMBER OR USE
ADVANCED PARTS SEARCH
Search
X
Log In
My Cart
0
Cart ( 0 )
0 items ( $0.00 )
Overstock Products
Thermalux Tankless Heaters
Parts
Accessories
Accumulators
AGM Actuators
Air Intake Parts
Air Vents
Auto Feeders
Blower Connectors
Burner Dampers
Burner Parts
Burner Sensors
Burners
Burner Parts
Bypass Parts
Bypass Servo Parts
Case Parts
Cases
Case Parts
Circuit Board Connectors
Circuit Board Parts
Circuit Boards
Circuit Board Parts
Clamps
Clips
Condensate Parts
Control Boards
Control Panel Parts
Cords
Couplings
Covers
Drain Hoses and Connections
Elbows
Exhaust Boxes
Exhaust Ducts
Exhaust Flues
Exhaust Parts
External Remote Terminal Blocks
Fan Motors
Fan Plates
Flame Detectors
Flame Observation Parts
Flame Rods
Flow Sensors
Freeze Prevention
Front Covers
Gas Connection Parts
Gas Conversion Kit
Gas Manifold Parts
Gas Manifold Plate Sets
Gas Pipes
Gas Valve Parts
Gas Valves
Gaskets
Heat Exchanger Kits
Heat Exchanger Parts
Heating Return Block Parts
Heating Return Connections
Hot Water Plate Heat Exchangers
Igniter Parts
Igniters
Igniter Parts
Ignition Plugs
Inlet Gas Connections
Inlet Water Connections
Intake Flues
Junction Boxes
Labels
LED Lights
Lightning Arresters
Lightning Protection
Magnetic Flow Sensors
Mixing Cylinders
Mixing Valves
Mounting Plates
Neutralizer Containers
O-Rings
Outlet Water Connections
Packing
Pipes
Plug Insulation Sheets
Pressure Sensors
Pumps
Recirculation Parts
Relief Valves
Remote Controller Parts
Screws
Sight Glass Windows
Silencer Bodies
Silicon Sleeves
Switches
Temperature Selectors
Temperature Sensors
Terminal Blocks
Thermal Fuses
Thermistors
Transformers
Tubes
Valves
Venturi Sets
Water Chambers
Water Filters
Water Leak Detectors
Water Servo Sets
Wire Grommets
Wiring
Wiring Connection Boxes
Wiring Diagrams
Wiring Harnesses
Tankless Water Heaters
Combination Boilers
CB Series
NH Series
NRCB Series
Commercial
N-0841 Series
N-132 Series
N-1321 Series
NC Series
NCC Series
Residential
EZ Series
N-0531 Series
N-063 Series
N-0631 Series
N-069 Series
N-0751 Series
N-084 Series
N-0931 Series
NR Series
NRC Series
NRCP Series
NRCR Series
Residential
Commercial
Boilers
Home
>
Parts
>
Heating Return Block Parts
Heating Return Block Parts
Sort By
Sort by Name
Sort by Low Price
Sort by High Price
NPD136
CB - Heating Return Block Assembly
$149.46
296 In Stock
NPD139
CB - Heating Return Block Filter
$33.22
99 In Stock
NPD141
CB - Heating Return Block Cap
$11.63
143 In Stock
