Description

Who the NCB-190/060H suits

The Navien NCB-190/060H is a combi-boiler: one wall-hung, indoor unit that handles both home heating (radiators, baseboard or in-floor) and domestic hot water, replacing a separate boiler and water heater. It is the smallest of the five NCB-H sizes. Its burner modulates from 11,000 to 60,000 BTU/h of gas input, which Navien rates at 56,000 BTU/h of heating capacity (49,000 BTU/h net AHRI rating). That makes it a fit for smaller single-family homes, townhomes and condos whose heating load fits within that output.

On the hot-water side, the burner runs up to 160,000 BTU/h, and Navien rates the unit at 4.1 GPM at a 70°F temperature rise. GPM at a temperature rise tells you how many fixtures can run at once with cold Midwest winter water, which is why sizing matters; we translate that figure into your household’s fixture count during the estimate. If the home needs more heat than the NCB-190/060H’s 56,000 BTU/h capacity, or more hot water at once, look at the NCB-190/080H or NCB-240/110H.

Benefits you will notice at home

• Two appliances in one cabinet. The unit is 17.3″ wide, 29.3″ tall and 12.8″ deep and hangs on the wall, so a mechanical room that used to hold a boiler and a water-heater tank gets its floor space back.
• 95% AFUE, ENERGY STAR certified. AFUE is the heating-efficiency rating; 95% means almost all of the gas you pay for becomes heat in your home. As a condensing appliance, a second stainless steel heat exchanger captures heat from the exhaust that older boilers send up the chimney, which is why it vents in PVC and needs a condensate drain.
• On-demand hot water without a tank. Hot water is made as you use it (minimum flow 0.5 GPM), so there is no stored tank to run out or to keep warm all day. A separate stainless steel flat-plate heat exchanger handles the hot water.
• Modulation that reduces short cycling. Turndown ratio is how low the burner can modulate. The NCB-190/060H has a 15:1 turndown for hot water and up to 5.5:1 for heating, so it can run at a low, steady fire on mild days instead of switching on and off.
• Zoning built in. If your home is heated in zones (for example upstairs and downstairs on separate thermostats), the boiler already has powered connections for up to three zone pumps or three zone valves, so no extra control box is needed for those zones.

Price and estimate

Installed from $10,401.19. This is a complete installed package for the NCB-190/060H, not an equipment-only price. GSHA’s standard combi-boiler installation includes:

• Setting and leveling the unit
• Water piping modifications
• Gas line modification with a new gas valve
• A new condensate drain line
• A new 150 lb pressure relief valve
• A 4.8-gallon hydronic expansion tank and a domestic hot-water thermal expansion tank
• Navien primary manifold kit
• NaviClean magnetic filter
• Commissioning kit (Protector F1 and Cleaner F3)
• New PVC flue venting
• Removal and disposal of the old equipment
• Start-up, testing and a safety inspection

Every boiler installation is custom. The “Installed from” price is the starting installed package for this model with GSHA’s standard installation scope; your final price is confirmed by a free on-site estimate. What changes it: the venting route and length, gas line capacity, condensate drain routing, piping and zoning changes (circulators, zone valves, expansion tank and air separation), water-quality treatment, electrical work, removal of the old boiler, permits, and accessories such as NaviLink controls or manifolds, which are priced separately. Financing available with approved credit.

Schedule Boiler Repair | Request a Boiler Installation Estimate or call (224) 220-3660

What can change the final quote: gas line capacity and length; venting route and length; where the condensate can drain; water quality treatment; electrical work; zoning and piping changes to your existing heating loops; permits; optional accessories such as NaviLink Wi-Fi control or a NaviCirc recirculation valve; and how accessible the installation location is. We confirm all of this during the estimate, and the estimate is free. Financing available with approved credit.

Request an Installation Estimate or call (224) 220-3660.

Optional add-ons confirmed compatible with the NCB-H series: NaviLink Wi-Fi control ($288.43), NaviLink Lite Wi-Fi control ($153.55) and the NaviCirc recirculation valve ($99.60). NaviCirc is an add-on valve that recirculates hot water through your existing pipes when the home has no dedicated return line, cutting the wait at faraway faucets.

Specifications

Specification	NCB-190/060H	Source
Type	Condensing combi-boiler, indoor wall-hung, residential	Navien model page (QuickFacts)
Heating input	11,000 to 60,000 BTU/h; heating capacity 56,000 BTU/h; net AHRI rating 49,000 BTU/h	Navien model page (QuickFacts)
Domestic hot water input	10,000 to 160,000 BTU/h	Navien model page (QuickFacts)
AFUE	95.0% (DOE test procedure); ENERGY STAR certified	Navien model page (QuickFacts)
Hot water flow	8.3 GPM at 35°F rise; 5.8 GPM at 50°F; 4.1 GPM at 70°F; 2.9 GPM at 100°F; minimum flow 0.5 GPM	Navien model page (DHW Flow Rates)
Turndown ratio	15:1 hot water; up to 5.5:1 heating	Navien model page
Heat exchangers	Dual condensing stainless steel; separate stainless steel flat-plate DHW exchanger; ASME “H” stamp	Navien model and series pages
Venting	Direct vent; 2″ PVC up to 65 ft or 3″ up to 150 ft; PVC, CPVC, polypropylene or stainless; 0″ clearance to combustibles	Navien model page
Gas	Natural gas or propane, field convertible (kit included); 1/2″ gas pipe capable up to 24 ft subject to local code	Navien model and series pages
Zoning	Built-in powered connections for 3 zone pumps or 3 zone valves	Navien model page
Controls	Backlit LCD with click-wheel and Setup Wizard; optional NaviLink / NaviLink Lite Wi-Fi; optional outdoor reset sensor	Navien model page and Accessories tab
Connections and pressure	Heating 1″ connections, 12-30 PSI; DHW 3/4″ connections, 15-150 PSI	Navien model page (QuickFacts)
Electrical	120 V AC, 60 Hz, up to 15 A; electronic ignition	Navien model page (QuickFacts)
Dimensions and weight	17.3″ W x 29.3″ H x 12.8″ D; 87 lb dry, 93 lb with water	Navien model page (QuickFacts)
Certifications	AHRI 205661696; CSA; SCAQMD 1146.2 low NOx; low lead (DHW)	Navien model page (QuickFacts)
Installed from	from $10,401.19	GSHA Services price book

Navien lists AFUE rather than UEF (the federal efficiency rating for water heaters) for this boiler, and does not state a sound level on its model page; see Navien product data for anything not listed here.

Installation and warranty

GSHA Services, LTD is a Navien Service Specialist (NSS) and an authorized Navien dealer, listed on Navien’s installer locator at navieninc.com, with Navien Level 3 trained technicians. We install and service the NCB-H series across McHenry County and Lake County, IL, and the surrounding Chicago suburbs and southeastern Wisconsin. Every combi-boiler installation follows the scope listed above and ends with a start-up, testing and safety inspection. Because the NCB-190/060H is a condensing unit, the venting is PVC and a condensate drain is required; we route both during the estimate visit so there are no surprises on installation day. Learn more about our boiler installation service and the full Navien boiler and combi-boiler lineup.

Navien residential limited warranty (NCB-H): 1 year labor, 5 years parts, 10 years heat exchanger. Navien’s warranty applies only to single-family residential installations, and the installation date must be provided to Navien (proof may be requested). Navien also voids the warranty for units bought online or from a non-authorized supplier, improper installation, and skipped maintenance.

GSHA Install-Right coverage: our combi-boiler package adds 5-year labor and 5-year parts coverage. GSHA labor coverage is valid only with annual GSHA maintenance, and service by others voids GSHA’s labor coverage. For warranty service, contact GSHA as the original installer.

Frequently asked questions

How much does a Navien NCB-190/060H cost installed?

From $10,401.19 as a complete installed package from GSHA Services, LTD. That price includes the unit, venting, expansion tanks, magnetic filter, gas and water piping modifications, removal of the old equipment and start-up. A free on-site estimate confirms whether anything about your home changes the quote.

Is the NCB-190/060H big enough for my house?

It is sized for smaller homes whose heating load fits within its 56,000 BTU/h heating capacity (49,000 BTU/h net AHRI rating) and whose winter hot-water demand fits 4.1 GPM at a 70°F rise. We calculate the heating load and count your fixtures during the estimate; if the numbers are close, the NCB-190/080H or NCB-240/110H gives you more headroom.

Does it replace both my boiler and my water heater?

Yes. A combi-boiler makes hot water on demand for faucets and showers and heats the water that runs through your radiators, baseboard or floor loops, so the storage water heater goes away.

Can it run on propane?

Yes. The NCB-190/060H is field convertible between natural gas and propane, and Navien includes the conversion kit. The gas type is confirmed at the estimate.

Can I add recirculation so hot water arrives faster?

Yes, with the optional NaviCirc valve ($99.60), which works through your existing hot and cold lines without a dedicated return pipe. The unit has no built-in buffer tank or recirculation pump.

What does the warranty cover?

Navien covers 1 year labor, 5 years parts and 10 years on the heat exchanger for single-family residential installs. GSHA adds 5-year labor and 5-year parts coverage, valid with annual GSHA maintenance; service by another company voids GSHA’s labor coverage.

Navien NCB-H boiler questions homeowners ask

Do you install and repair Navien NCB-H boilers in my city?

Yes. GSHA Services, LTD installs, services and repairs Navien boilers, including this Navien NCB-H model, across McHenry County and Lake County, Illinois, the northern and western Chicago suburbs and southeastern Wisconsin, from our Woodstock and Lake Bluff locations. GSHA is a Navien Service Specialist (NSS), approved June 30, 2026, is listed on Navien’s installer locator at navieninc.com, and sends Navien Level 3 trained technicians. Check the service-area page if you are near the edge of the area, or call (224) 220-3660.

Can my existing or discontinued Navien boiler be repaired?

Yes. GSHA Services, LTD repairs existing Navien boilers and combi-boilers within its service area, including earlier NCB models that Navien no longer sells. A discontinued model does not automatically need to be replaced; if parts are available and the heat exchanger is sound, repair is usually the sensible first step. As a Navien Service Specialist (NSS), GSHA diagnoses the fault, checks parts availability and gives you a repair-or-replace recommendation before any work starts.

What is the difference between a combi boiler and a heating-only boiler?

This Navien NCB-H model is a combi boiler: one appliance that heats your home through radiators, baseboard or radiant floors and also makes domestic hot water for showers and taps on demand, without a storage tank. A heating-only boiler such as the Navien NHB-H or NFB-H heats the home only; for hot water it needs an indirect water heater or a separate water heater. A tankless water heater makes domestic hot water only and does not heat the house. The combi saves space and a second appliance, but the free on-site estimate confirms it can meet both your heating load and your hot-water demand.

Is this boiler for steam or hot-water heating?

This Navien NCB-H model is a hot-water (hydronic) boiler only; it is not a steam boiler and is not rated for steam in any size. It suits homes with hot-water baseboard, radiators or radiant floor loops. If your home has a steam system (one-pipe radiators with air vents, a sight glass on the boiler), it needs a steam boiler, not this model. The free on-site estimate confirms which system your home has.

What does installation include and what can change the price?

GSHA’s standard installed package for this Navien NCB-H model includes setting and leveling the boiler, water piping modifications, gas line modification with a new gas valve, a new condensate drain line, a new relief valve, a hydronic expansion tank and a domestic hot-water thermal expansion tank, the Navien primary manifold kit, a NaviClean magnetic filter, the system commissioning kit (cleaner and protector), new PVC flue venting, removal and disposal of the old equipment, and start-up, testing and a safety inspection. Every installation is custom, so the venting route, gas line capacity, condensate drainage, piping and zoning changes, water treatment, electrical work, permits and accessories such as NaviLink or extra manifolds can change the final price. The free on-site estimate confirms it.

When does repair make more sense than replacement?

Repair usually makes sense when the boiler is younger, the heat exchanger is sound, the fault is a single part such as a sensor, igniter, pump or gas valve, and parts are available. Replacement becomes the better choice when a heat exchanger is leaking or cracked, repairs are repeating every season, parts for an older model are hard to get, the unit is undersized or oversized for the home, or there is a venting or gas safety concern. An older non-condensing boiler running well below 90% AFUE is another reason to compare the two. GSHA gives you both options with honest reasoning during a service visit or a free on-site estimate.

Get an installed price for your home

Tell us about your heating system and hot-water use and we will confirm whether the NCB-190/060H is the right size, walk the venting and gas routes, and give you a written installed price. Estimates are free. Financing is available with approved credit. Check our service area, browse Navien tankless water heaters if you only need hot water, or contact us with questions.

Request an Installation Estimate or call (224) 220-3660.