BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items

HVAC & Plumbing parts lists

BOMwiki lists 69 products in HVAC & plumbing, with 8,238 parts counted across their recorded bills of materials. The highest recorded part count is the VRF outdoor unit at 801 parts across 8 top-level items; the lowest is the automatic flue damper at 16. Open a product to explore its recorded components and their roles. Counts describe the current BOMs, not a complete inventory of every product variant.

69 products

Absorption Chiller
Absorption Chiller Thermally-driven refrigeration unit using a lithium bromide-water or ammonia-water absorption cycle for cooling without mechanical compressor. 78 parts · 9 BOM lines
Active Chilled Beam
Active Chilled Beam Ceiling-mounted radiant cooling unit with induction nozzles, coil, and primary air plenum for space conditioning. 43 parts · 8 BOM lines
Air Curtain
Air Curtain An over-door fan that blows a high-velocity sheet of air across an open doorway to separate inside and outside climates while letting people pass. 115 parts · 9 BOM lines
Air Handling Unit
Air Handling Unit A factory-built sheet-metal cabinet that filters, heats, cools, and moves conditioned air through a building duct system, sized from 1,000 to over 100,000 m³/h. 631 parts · 9 BOM lines
Air Purifier
Air Purifier A tower HEPA air purifier: multi-stage filter stack, EC blower, and laser particulate sensing with Wi-Fi control. 331 parts · 10 BOM lines
Automatic Flue Damper
Automatic Flue Damper A motorized damper blade installed in a flue pipe that opens when the heating system fires and closes during idle to prevent convective heat loss up the chimney. 16 parts · 6 BOM lines
Ceiling Cassette AC
Ceiling Cassette AC A four-way ceiling-recessed split air conditioner: a flush indoor cassette paired with a remote outdoor condensing unit. 395 parts · 6 BOM lines
Ceiling Fan
Ceiling Fan A DC brushless ceiling fan: BLDC motor, five blades, integrated LED light kit, and RF remote control. 104 parts · 8 BOM lines
Centrifugal Chiller
Centrifugal Chiller A large water-cooled refrigeration machine that uses a centrifugal compressor to chill water for building air conditioning, typically 300 to 4,000 tons of cooling. 340 parts · 9 BOM lines
Chimney Draft Fan A roof-mounted induced-draft fan that boosts natural chimney flow, powered by a low-speed motor and controlled by a temperature sensor. 27 parts · 7 BOM lines
Cleanroom Air Shower
Cleanroom Air Shower A small sealed chamber with HEPA-filtered air jets on all sides that removes particles and contamination from personnel or materials entering a cleanroom, located at the transition between non-cleanroom and cleanroom zones. 166 parts · 7 BOM lines
Commercial Boiler Burner
Commercial Boiler Burner Combustion assembly for hydronic boilers combining fuel metering, air mixing, ignition, and flame detection. 42 parts · 8 BOM lines
Commercial Kitchen Hood A stainless-steel exhaust canopy mounted over cooking equipment that captures grease-laden vapor and smoke, filters it, and ducts it outdoors per NFPA 96. 170 parts · 8 BOM lines
Cooling Tower
Cooling Tower Large open evaporative cooling tower with fill media, fan, distribution basin, and drift eliminators for rejecting condenser heat. 89 parts · 8 BOM lines
Data Center CRAC Unit
Data Center CRAC Unit Packaged air conditioning unit with direct-expansion cooling, EC fan motors, humidity control, and multi-stage filtration for data center heat removal. 46 parts · 8 BOM lines
Dehumidifier
Dehumidifier A refrigerant (compressor) dehumidifier that pulls moisture from room air. 217 parts · 12 BOM lines
Destratification Fan A low-speed high-volume axial fan suspended from the ceiling that gently recirculates warm air from the peak of a high-bay space downward to occupied zones, reducing heating energy in winter. 62 parts · 7 BOM lines
Direct-Vent Wall Furnace A sealed-combustion gas furnace mounted in an exterior wall, using a coaxial vent pipe for both air intake and exhaust. 25 parts · 8 BOM lines
Duct Silencer
Duct Silencer An in-line acoustic attenuator that reduces fan and equipment noise propagating through HVAC ductwork. 18 parts · 6 BOM lines
Ductwork Fabrication Line
Ductwork Fabrication Line Industrial production line manufacturing rectangular and round ductwork from sheet metal using press brakes, roll formers, seamers, and notching equipment. 62 parts · 8 BOM lines
Electric Baseboard Heater
Electric Baseboard Heater A wall-mounted radiant-convective heating unit using electrical resistance to warm rooms without ductwork. 25 parts · 8 BOM lines
Electric Combi Boiler
Electric Combi Boiler A compact electric boiler with immersion heating elements, integral plate heat exchanger for domestic hot water, circulation pump, and digital controls. 29 parts · 8 BOM lines
Electric Furnace
Electric Furnace A central heating unit using staged electrical resistance elements and a blower to distribute warm air throughout a building via ductwork. 33 parts · 8 BOM lines
Energy Recovery Wheel Rotating desiccant or aluminum wheel transferring sensible and latent heat between exhaust and outdoor air streams. 52 parts · 8 BOM lines
Evaporative Condenser
Evaporative Condenser Hybrid air/water cooled condenser for refrigeration systems, spraying recirculated water over a coil bundle to reject 30–300 kW via evaporative cooling. 53 parts · 8 BOM lines
Evaporative Cooler
Evaporative Cooler A swamp cooler that drops air temperature by evaporating water off wetted pads, no refrigerant, no compressor. 101 parts · 9 BOM lines
Fan Coil Unit
Fan Coil Unit A terminal heating/cooling unit that blows room air across a water coil fed by a central chiller or boiler, controlled by a thermostat and a valve. 118 parts · 10 BOM lines
Fan Filter Unit
Fan Filter Unit A compact ceiling-mounted or wall-mounted cleanroom supply unit combining an electronically commutated (EC) fan, HEPA or ULPA filter, and integral diffuser for direct laminar or turbulent flow into a controlled environment. 102 parts · 8 BOM lines
Fireplace Insert
Fireplace Insert A factory-built firebox shell with integrated blower, surround panels, baffle, and glass door that replaces an open fireplace for high efficiency. 27 parts · 8 BOM lines
Garage Unit Heater
Garage Unit Heater A wall-mounted gas heating unit with a sealed combustion chamber, heat exchanger, blower fan, and pneumatic thermostat control. 24 parts · 8 BOM lines
Gas Furnace
Gas Furnace A high-efficiency two-stage condensing gas furnace (~96% AFUE) with an ECM circulating blower and integrated furnace control. 308 parts · 10 BOM lines
Gas Unit Heater
Gas Unit Heater A self-contained heating appliance for garages, warehouses, and industrial spaces that burns natural gas or propane, heats outdoor air in a heat exchanger, and blows it into the space via an integral fan. 154 parts · 8 BOM lines
Glycol Chiller
Glycol Chiller Packaged chiller circulating propylene glycol/water solution for freeze-protection in outdoor or low-ambient cooling loops. 44 parts · 8 BOM lines
Heat Pump
Heat Pump Air-source heat pump: outdoor unit plus indoor air handler, reversible for heating and cooling. 117 parts · 6 BOM lines
Heat Recovery Ventilator (HRV) A balanced ventilator that exhausts stale indoor air and brings in fresh outdoor air, passing the two streams through a core that recovers most of the heat between them. 156 parts · 11 BOM lines
Hydronic Air Handler
Hydronic Air Handler A fan coil unit containing a hot-water heat exchanger, variable-speed blower, zone valve interface, and thermostatic controls. 28 parts · 8 BOM lines
Hydronic Buffer Tank
Hydronic Buffer Tank A large insulated vessel that stores thermal energy in circulating water, decoupling heat source cycles from building demand. 21 parts · 8 BOM lines
Immersion Cooling Tank
Immersion Cooling Tank Sealed fluid tank submerging servers in dielectric liquid, with CDU heat exchanger, pump, and monitoring for 50–200 kW modular cooling. 41 parts · 7 BOM lines
In-Row Cooler Compact water-cooled unit mounted between server racks, using chilled-water loop and variable fans to remove 20–100 kW with minimal footprint. 33 parts · 7 BOM lines
Industrial Dust Collector
Industrial Dust Collector A large industrial air filtration system for workshops, factories, and mills that continuously removes sawdust, metal chips, grain, and other particulates from the air via pulse-jet cleaned fabric filters, with a hopper for collected material disposal. 150 parts · 8 BOM lines
Industrial Refrigeration Rack
Industrial Refrigeration Rack Multi-compressor refrigeration skid with oil management, suction/discharge headers, and integrated controls for 100–500 kW capacity. 51 parts · 8 BOM lines
Infrared Tube Heater
Infrared Tube Heater A gas-fired radiant heating system with a long perforated tubular burner and reflector that emits infrared radiation directly to people and surfaces, used in high-ceiling industrial spaces and outdoor pavilions. 125 parts · 8 BOM lines
Inline Duct Fan A tubular fan installed in the run of round ductwork, using a mixed-flow impeller and EC motor to move 100–2,500 m³/h for ventilation, exhaust, and booster duty. 203 parts · 7 BOM lines
Makeup Air Unit A dedicated outdoor-air conditioning unit with supply fan, gas or electric heat, filtration, and damper control that supplies fresh air to offset exhaust fans in kitchens, labs, and industrial spaces. 193 parts · 8 BOM lines
Mini-Split Heat Pump
Mini-Split Heat Pump A ductless heat pump: a wall-mounted indoor unit and an outdoor inverter unit joined by a refrigerant line set, reversing to heat or cool a single zone. 286 parts · 6 BOM lines
Oil-Filled Radiator Heater
Oil-Filled Radiator Heater A portable electric heater that warms a sealed column of oil and radiates that heat from finned steel sections. 70 parts · 8 BOM lines
Oil-Fired Boiler A hydronic boiler heated by an oil burner with pressure-atomizing nozzle, combustion chamber, heat exchanger, and aquastat control. 22 parts · 8 BOM lines
Outdoor Misting Fan Pedestal or wall-mounted fan with high-pressure mist pump atomizing water to 15–30 µm droplets for evaporative cooling. 61 parts · 8 BOM lines
Packaged Rooftop Unit (RTU) A self-contained rooftop air conditioner and heater for commercial buildings: compressors, both coils, gas or electric heat, blowers, dampers, and controls in one weatherproof cabinet. 276 parts · 13 BOM lines
Pellet Boiler
Pellet Boiler A fully automated hydronic boiler fed by an auger from a pellet hopper, with turbulator heat exchanger, ash compression, and lambda oxygen control. 25 parts · 8 BOM lines
Pellet Stove
Pellet Stove A residential space heater that auger-feeds wood pellets from a hopper into a burn pot, with forced combustion air and a convection blower pushing room air across a heat exchanger. 51 parts · 8 BOM lines
Pool Dehumidifier A dedicated refrigeration-cycle dehumidifier that removes moisture from indoor swimming pool air by cooling it below dew point, condensing water, and reheating the dry air. 209 parts · 8 BOM lines
Pool Heat Pump
Pool Heat Pump A water-source heat pump that extracts thermal energy from air or ground and transfers it to pool water for heating or cooling. 23 parts · 8 BOM lines
Portable Air Conditioner
Portable Air Conditioner A free-standing single-hose room air conditioner on casters that exhausts heat through a window kit. 163 parts · 10 BOM lines
PTAC Unit
PTAC Unit A packaged terminal air conditioner that provides independent heating and cooling to individual rooms via a through-wall envelope. 24 parts · 8 BOM lines
Radiant Floor Manifold
Radiant Floor Manifold A multizone water distribution and collection hub that supplies heated or cooled water to parallel tubing circuits beneath finished floors. 165 parts · 8 BOM lines
Refrigerated Display Case
Refrigerated Display Case Retail-facing glass-door cabinet with evaporative coil curtain, EC fan, and temperature control for deli/dairy product merchandising. 57 parts · 8 BOM lines
Roof Exhaust Fan
Roof Exhaust Fan A centrifugal fan mounted in a roof curb that exhausts air from the building, with a removable wheel, integral motor, and a hinged birdscreen hood that prevents weather infiltration. 82 parts · 8 BOM lines
Rooftop Package Unit All-in-one rooftop HVAC system combining DX cooling, gas or heat pump heating, economizer, and controls in a weathertight enclosure. 56 parts · 8 BOM lines
Rotary Heat Wheel
Rotary Heat Wheel A rotating matrix wheel that transfers heat and moisture between incoming and outgoing air streams in HVAC systems. 32 parts · 8 BOM lines
Smoke Exhaust Fan A high-temperature rated centrifugal fan designed to exhaust smoke and hot gases from parking garages, stairwells, or mechanical spaces during fire conditions. 29 parts · 8 BOM lines
Snow Making Machine
Snow Making Machine Compressed-air and chilled-water system nucleating water droplets into snow crystals via nucleators and fan discharge. 46 parts · 8 BOM lines
Steam Humidifier An electrode-type humidifier that boils ordinary tap water inside a replaceable cylinder and injects the steam into duct air or directly into a room, producing 5–100 kg/h. 207 parts · 8 BOM lines
Tankless Water Heater
Tankless Water Heater A wall-mounted condensing gas tankless (on-demand) water heater with primary + secondary heat exchangers, a modulating gas burner, and a microprocessor control board. 59 parts · 11 BOM lines
VAV Terminal Box
VAV Terminal Box A ductwork control unit that sits in a ceiling plenum or wall, modulating its intake damper to match each room's airflow demand while maintaining ductwork pressure and individual room temperature setpoint via a reheat coil. 123 parts · 8 BOM lines
VRF Outdoor Unit
VRF Outdoor Unit The outdoor condensing unit of a variable-refrigerant-flow system, using inverter-driven scroll compressors to modulate refrigerant flow to up to 64 indoor units over a single pipe network. 801 parts · 8 BOM lines
Walk-In Cooler
Walk-In Cooler Modular insulated enclosure with condensing unit, evaporator coil, and microprocessor controls for food storage at -18 to +15 °C. 52 parts · 8 BOM lines
Window Air Conditioner
Window Air Conditioner A single-package window-mounted room air conditioner: compressor, two coils, and a dual-shaft blower in one chassis. 127 parts · 11 BOM lines
Wood Stove
Wood Stove A cast-iron or steel wood-burning firebox with a baffle plate, secondary combustion air tubes, and a glass-fronted door. 27 parts · 8 BOM lines

Shared component references 12

Components ranked by how many of the 69 recorded product BOMs reference the same page, directly or through a sub-assembly. A shared reference does not establish replacement-part compatibility.

  1. Connector in 34 of 69 productsMating plug-and-socket pair that joins two lengths of wiring or a cable to a board so a circuit can be assembled, serviced, and separated without soldering.
  2. Ball Bearing in 33 of 69 productsDeep-groove radial ball bearing.
  3. Relay in 32 of 69 productsElectromechanical switch in which a small coil current closes or opens contacts rated for a much larger load, isolating control circuits from what they switch.
  4. Bare PCB in 31 of 69 productsUnpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
  5. Fastener Set in 31 of 69 productsBolts, nuts, and washers.
  6. Microcontroller in 31 of 69 productsSingle-chip microcontroller combining a processor core, flash memory, RAM, and peripherals such as timers, ADCs, and serial ports to run the device's control firmware.
  7. SMD Passive (R/C/L) in 28 of 69 productsSurface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.
  8. Copper Winding in 27 of 69 productsInsulated copper conductor wound into coils that carry the phase current and create the magnetic field in a motor, generator, or transformer.
  9. Neodymium Magnet in 26 of 69 productsSintered neodymium-iron-boron permanent magnet, the strongest commercial magnet type, used for motor rotors, sensors, latches, and speakers.
  10. Rotor Assembly in 26 of 69 productsRotating member of an electric motor: a laminated steel core carrying permanent magnets or conductor bars, pressed onto a shaft that delivers the torque.
  11. Rotor Core in 26 of 69 productsStack of thin electrical-steel laminations that forms the magnetic body of a motor rotor and holds its magnets or conductor bars.
  12. Rotor Shaft in 26 of 69 productsHardened steel shaft at the centre of a motor rotor that carries the core, runs in the bearings, and transmits torque to the load.