- Cooling Parts
- Heating Parts Service
- brass fittings-Heating Parts Service
- Commercial Burner Controls
- Control Boards-Heating Parts Service
- Draft Inducers-Heating Parts Service
- electric heat parts
- electrical service
- fan and limit controls
- Flame Sensor
- Flue Collector Box
- Gas Regulators
- Gas Valves
- gaskets
- heat exchangers
- ignition components
- Ignitors
- manifold and burners
- Motors-Heating Parts
- OEM Parts-Heating Parts Service
- pressure switches-Heating Parts Service
- relays-Heating Parts Service
- Specialty Controls
- Specialty-Heating Parts Service
- Thermocouples
- Transformers
- venting materials
- Motor Accessories
- Motors
- Compressors
- Controls/Accessories
- Accumulators and Receivers
- Capacitors-Controls/Accessories
- Capillary Tubing
- Defrost Controls
- Drain Pan / Cable Heaters
- Expansion Valves-Controls/Accessories
- Filter Driers
- Miscellaneous-Controls/Accessories
- Motors-Controls
- Overload
- Pressure Controls
- Refrigeration Valves
- Relays-Controls/Accessories
- Relief valves-Controls
- Sight Glasses and Moisture Indicators-Accessories
- Solenoid Valves
- Temperature Controls
- Vibration Eliminators
- Equipment Refrigeration
- Refrigerant and Oils
- Chemicals
- Chimney and Venting
- Electrical
- Installation
- Adhesives-Installation
- Brazing and Soldering Supplies
- Capacitors-Installation
- Caulk and Sealants
- Condensate Drain Pans
- Condensate Management
- Condensate Pumps
- Drain Tube and Fittings
- Duct and Pipe Hangers
- Duct Connectors and Damper Hardware
- Duct Sealants
- Equipment Pads and Stands
- Hardware, Fasteners, and Hangers
- Hose Clamps
- Markers & Paint
- Miscellaneous-Installation
- Roof Penetration Products
- Tape
- Thread Sealants
- Vibration Absorbers and Pads
- Maintenance
- Pipe, Fittings, and insulation
- Black Pipe & Fittings
- Black Pipe and Fittings Accessories
- Copper Fittings
- Copper Pipe
- Copper Press Fittings
- Flexible Gas Pipe Fittings including Insulation
- Galvanized Pipe and Fittings
- HVACR Brass fittings
- Linesets
- LOKRING
- Pipe Insulation
- Push Fit Fittings
- PVC Pipe and Fittings
- PVC Pipe and Fittings Accessories
- Specialty Supplies
308BNI-G 245,000 NAT EI WTR SERIES 3 Boiler
Time proven cast iron design for durability and reliability
Optimum venting flexibility for homes with existing chimneys
Industry standard tapping locations, allows easy, direct replacement for thousands of existing boiler installations
Solid, reliable, American-made cast iron heat exchanger, designed to promote turbulent water flow within the section for efficient heat transfer
Consists of the Intelligent Hydronic Control and IQ Option Panel
Intuitive self-diagnostics
Combines high limit, relay and ignition functions into a single module
Two customizable integrated switching relays for easy addition of additional heating zone or indirect water heater
Energy saving thermal purge, which works by circulating residual warm water (140 Deg or above) in the heating system before firing the boiler
Enables the easy plug and play installation of optional features such as outdoor reset, LWCO and high limit
Limited Lifetime Warranty