Authorized Navien Dealer & Installer

Navien Boilers, Tankless Water Heaters & Heat Pumps

As an authorized Navien dealer, we install, service and repair the full Navien lineup — 83+ models across boilers, combi-boilers, tankless & heat-pump water heaters, HVAC and water treatment. Browse the catalog, then call us for expert sizing and a free quote.

✓ Authorized Navien Installer ✓ 24/7 Emergency Service ✓ Full HVAC · Nassau & Suffolk

About Navien

Long Island's source for the full Navien lineup

Navien is a global leader in high-efficiency condensing technology, with boilers, combi-boilers and tankless water heaters sold in more than 30 countries. Their condensing units draw more heat from every unit of fuel — reaching up to 95% AFUE on boilers and 0.97 UEF on tankless water heaters — which means lower energy bills and a smaller carbon footprint for your home.

As an authorized Navien dealer and installer, we stock, size, install and service every series below — from the compact NHB residential boiler to the NPE and NHW tankless water heaters with built-in ComfortFlow® recirculation for near-instant hot water. Whether you're converting an aging oil boiler to gas, upgrading to endless hot water, or building new, we'll help you choose the right Navien model and install it to protect your manufacturer warranty.

Boilers Combi-Boilers Tankless Water Heaters Heat Pump Water Heaters HVAC Water Treatment Accessories 83 models

Navien Boilers

High-efficiency condensing gas boilers for whole-home and commercial hydronic heat.

NAVIEN

Condensing Heating Boiler

NHB-H Series

Compact wall-hung condensing gas boiler with a stainless steel heat exchanger and a wide 15:1 turndown ratio — ideal for Long Island homes needing efficient, space-saving hydronic heat.

NHB-55HUp to 50,000 BTU/H · residential
NHB-80HUp to 80,000 BTU/H · residential
NHB-110HUp to 110,000 BTU/H · residential
NHB-150HUp to 150,000 BTU/H · residential

Call to Order Free Quote

NAVIEN

High-Efficiency Condensing Heating Boiler

NFB-H Series

Fire-tube condensing boiler delivering high mass and high efficiency with advanced controls and flexible venting for demanding residential heating loads.

NFB-175HUp to 175,000 BTU/H
NFB-200HUp to 200,000 BTU/H

Call to Order Free Quote

NAVIEN

Commercial Condensing Fire-Tube Boiler

NFB-C Series

Commercial-grade condensing fire-tube boiler engineered for apartment buildings, offices and light industrial heating across Nassau and Suffolk.

NFB-301CUp to 301,000 BTU/H · commercial
NFB-399CUp to 399,000 BTU/H · commercial

Call to Order Free Quote

NAVIEN

NEW

Commercial Condensing Boiler

NFB700-C Series

High-capacity commercial condensing boiler line for large buildings and cascade installations, with outputs up to 1,000,000 BTU/H.

NFB700-500CUp to 500,000 BTU/H · commercial
NFB700-600CUp to 600,000 BTU/H · commercial
NFB700-800CUp to 800,000 BTU/H · commercial
NFB700-1000CUp to 1,000,000 BTU/H · commercial

Call to Order Free Quote

Navien Combi-Boilers

One compact unit for heat and endless domestic hot water.

NAVIEN

NEW

Condensing Combi-Boiler

NCB-H Series

All-in-one condensing combi-boiler providing whole-home hydronic heat plus endless domestic hot water from a single compact wall-mounted unit.

NCB-190/060HHeat 60K / DHW 190K BTU/H
NCB-190/080HHeat 80K / DHW 190K BTU/H
NCB-240/110HHeat 110K / DHW 240K BTU/H
NCB-240/130HHeat 130K / DHW 240K BTU/H
NCB-250/150HHeat 150K / DHW 250K BTU/H

Call to Order Free Quote

NAVIEN

NEW

Condensing Fire-Tube Combi-Boiler

NFC-H Series

Fire-tube condensing combi-boiler with high domestic hot water output — enough for multiple showers and a dishwasher simultaneously in larger homes.

NFC-250/175HHeat 175K / DHW 250K BTU/H
NFC-250/200HHeat 200K / DHW 250K BTU/H

Call to Order Free Quote

Navien Tankless Water Heaters

Condensing and non-condensing tankless — endless hot water, lower bills.

NAVIEN

Advanced Condensing Tankless Water Heater

NPE-A2 Series

Ultra-high-efficiency condensing tankless water heater with built-in ComfortFlow recirculation — endless hot water and lower gas bills, cascade up to 32 units.

NPE-180A2Up to 180,000 BTU/H · condensing
NPE-210A2Up to 210,000 BTU/H · condensing
NPE-240A2Up to 240,000 BTU/H · condensing

Call to Order Free Quote

NAVIEN

Standard Condensing Tankless Water Heater

NPE-S2 Series

Standard high-efficiency condensing tankless water heater — a proven, cost-effective upgrade from tank heaters with endless hot water.

NPE-150S2Up to 150,000 BTU/H · condensing
NPE-180S2Up to 180,000 BTU/H · condensing
NPE-210S2Up to 210,000 BTU/H · condensing
NPE-240S2Up to 240,000 BTU/H · condensing

Call to Order Free Quote

NAVIEN

NEW

Non-Condensing Indoor Tankless Water Heater

NHW-AI Series

First and only non-condensing tankless with built-in ComfortFlow pump and buffer tank — eliminates the cold-water sandwich effect. Indoor model.

NHW-160AIUp to 160,000 BTU/H · indoor
NHW-180AIUp to 180,000 BTU/H · indoor
NHW-199AIUp to 199,000 BTU/H · indoor

Call to Order Free Quote

NAVIEN

NEW

Non-Condensing Outdoor Tankless Water Heater

NHW-AE Series

Non-condensing outdoor tankless with ComfortFlow built-in recirculation and buffer tank for consistent outlet temperature and space savings.

NHW-160AEUp to 160,000 BTU/H · outdoor
NHW-180AEUp to 180,000 BTU/H · outdoor
NHW-199AEUp to 199,000 BTU/H · outdoor

Call to Order Free Quote

NAVIEN

Non-Condensing Indoor/Outdoor Tankless Water Heater

NPN-U Series

Non-condensing tankless with a durable stainless-steel heat exchanger and patented burner — one unit configurable for indoor or outdoor use.

NPN-160UUp to 160,000 BTU/H · indoor/outdoor
NPN-180UUp to 180,000 BTU/H · indoor/outdoor
NPN-199UUp to 199,000 BTU/H · indoor/outdoor

Call to Order Free Quote

NAVIEN

Non-Condensing Outdoor Tankless Water Heater

NPN-E Series

Non-condensing outdoor tankless with stainless-steel heat exchanger and patented burner design — reliable hot water for milder installs.

NPN-160EUp to 160,000 BTU/H · outdoor
NPN-180EUp to 180,000 BTU/H · outdoor
NPN-199EUp to 199,000 BTU/H · outdoor

Call to Order Free Quote

NAVIEN

Non-Condensing Indoor/Outdoor Tankless Water Heater

NHW-SU Series

Non-condensing tankless with durable stainless-steel heat exchanger and patented burner — configurable indoor or outdoor operation.

NHW-160SUUp to 160,000 BTU/H · indoor/outdoor
NHW-180SUUp to 180,000 BTU/H · indoor/outdoor
NHW-199SUUp to 199,000 BTU/H · indoor/outdoor

Call to Order Free Quote

NAVIEN

Non-Condensing Outdoor Tankless Water Heater

NHW-SE Series

Non-condensing outdoor tankless with stainless-steel heat exchanger and patented burner design — durable, efficient hot water.

NHW-120SEUp to 120,000 BTU/H · outdoor
NHW-160SEUp to 160,000 BTU/H · outdoor
NHW-180SEUp to 180,000 BTU/H · outdoor
NHW-199SEUp to 199,000 BTU/H · outdoor

Call to Order Free Quote

Navien Heat Pump Water Heaters

Hybrid electric water heaters for major energy savings.

NAVIEN

NEW

Heat Pump Water Heater

NWP500 Series

High-efficiency hybrid heat pump water heater that pulls heat from ambient air for major electric savings — an eco-friendly tank upgrade.

NWP500-5050 gallon · heat pump
NWP500-6565 gallon · heat pump
NWP500-8080 gallon · heat pump

Call to Order Free Quote

Navien HVAC

Furnaces, heat pumps, air conditioners, air handlers and coils for year-round comfort.

NAVIEN

NEW

Hydronic Furnace (97% AFUE)

NPF Series

97% AFUE hydronic furnace with variable-capacity blower and modulating gas valve operating from 15% to 100% for whisper-quiet, efficient forced-air heat.

NPF700-060U3BH60K BTU · upflow
NPF700-080U3BH80K BTU · upflow
NPF700-100U5CH100K BTU · upflow
NPF700-060D3BH60K BTU · downflow
NPF700-080D3BH80K BTU · downflow
NPF700-100D5CH100K BTU · downflow
NPF700-060H3BH60K BTU · horizontal
NPF700-080H3BH80K BTU · horizontal
NPF700-100H5CH100K BTU · horizontal

Call to Order Free Quote

NAVIEN

NEW

Air-to-Air Heat Pump

NAZ Series

Variable-capacity air-to-air heat pump delivering efficient year-round heating and cooling for Long Island homes.

NAZ-17V363 ton · variable capacity
NAZ-17V605 ton · variable capacity

Call to Order Free Quote

NAVIEN

NEW

Variable-Capacity Air Conditioner

NAA Series

Variable-capacity central air conditioner engineered for quiet operation and high SEER2 efficiency.

NAA17V363 ton · variable capacity
NAA17V605 ton · variable capacity

Call to Order Free Quote

NAVIEN

NEW

Air Conditioner

NAE Series

High-efficiency central air conditioner for dependable whole-home cooling and comfort.

NAE28V363 ton
NAE28V605 ton

Call to Order Free Quote

NAVIEN

NEW

Air Handler

NAS Series

Matched air handlers for Navien heat pumps and air conditioners — quiet, efficient air distribution.

NASS24B2 ton · single-stage
NASV24B2 ton · variable
NASV36C3 ton · variable
NASS36C3 ton · single-stage
NASV48D4 ton · variable
NASS48D4 ton · single-stage
NASS59D5 ton · single-stage
NASV59D5 ton · variable

Call to Order Free Quote

NAVIEN

NEW

Cased Coil

NAM Series

Cased evaporator coils sized to match Navien HVAC systems for optimal efficiency and airflow.

NAM24B2 ton coil
NAM36B3 ton coil
NAM36C3 ton coil
NAM48C4 ton coil
NAM59C5 ton coil
NAM59D5 ton coil

Call to Order Free Quote

Navien Water Treatment

Chemical-free scale prevention and filtration that protects your equipment.

NAVIEN

Chemical-Free Anti-Scale System

PeakFlow Series

Chemical-free anti-scale water treatment that prevents scale buildup in appliances and plumbing — an eco-friendly alternative to water softeners.

PeakFlow SStandard · residential
PeakFlow AAdvanced · residential
PeakFlow CCommercial

Call to Order Free Quote

NAVIEN

NEW

Electric Water Treatment System

WEC Series

Electric water treatment system that protects water heating equipment and improves water quality.

WEC600Electric water treatment

Call to Order Free Quote

NAVIEN

NEW

Tankless Reverse-Osmosis System

WUR500 Series

Tankless reverse-osmosis drinking water system for clean, great-tasting water without a bulky storage tank.

WUR500Tankless RO system

Call to Order Free Quote

NAVIEN

NEW

Carbon Block Filter

WUA500 Series

Carbon block filtration for cleaner, better-tasting water at the point of use.

WUA500Carbon block filter

Call to Order Free Quote

Navien Accessories

Genuine Navien add-ons we stock and install — recirculation, filtration, Wi-Fi control and cascade hardware.

NaviCirc

Recirculation valve for on-demand hot water without a dedicated return line.

HotButton

Push-button on-demand recirculation control for instant hot water.

NaviClean

Magnetic + dirt separator that protects the heat exchanger and extends system life.

H2Air

Hydro-air kit that pairs a Navien combi-boiler or water heater with forced-air heating.

NaviLink

Wi-Fi remote control and monitoring for compatible Navien units.

Ready-Link

Manifold system for fast side-by-side or back-to-back cascade installations.

No products match your search. Call us and we'll help you find the right unit.

The reasons that matter

Why choose Navien — and choose us

Whichever model you pick, you get the same authorized installation and 24/7 support.

Efficiency first

Navien's condensing boilers and tankless water heaters are engineered for high performance while saving energy.

Built to last

Stainless steel heat exchangers and tanks for a long, reliable service life.

Smart technology

NaviLink Wi-Fi connectivity and intelligent controls keep your system at your fingertips.

Comfort, always

Endless hot water and steady, even heat — plus an authorized team that answers 24/7.

📞 Call Now Contact Us