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  7. Gas Tankless Water Heaters

Gas Tankless Water Heaters (136 items) - Page 2

Noritz 199 MBH Indoor Condensing Natural Gas Tankless Water Heater, 11.1 GPM GQ-C3257WX-FFUSNG
Noritz

199 MBH Indoor Condensing Natural Gas Tankless Water Heater, 11.1 GPM

Zoro # G221718576
Mfr # GQ-C3257WX-FFUSNG
product price:  $2,547.99
/ea
Noritz 199 MBH Indoor Non-Condensing Natural Gas Tankless Water Heater, 9.8 GPM GQ-2857WX-FFAUSNG
Noritz

199 MBH Indoor Non-Condensing Natural Gas Tankless Water Heater, 9.8 GPM

Zoro # G921718562
Mfr # GQ-2857WX-FFAUSNG
product price:  $2,246.99
/ea
Eccotemp Luxé 1.85 GPM 52K BTU Outdoor Portable Tankless Water Heater with LED Display EL7
Eccotemp

Luxé 1.85 GPM 52K BTU Outdoor Portable Tankless Water Heater with LED Display

Zoro # G202751639
Mfr # EL7
product price:  $319.99
/ea
Eccotemp SMARTHOME Indoor 6.8 GPM Natural Gas Tankless Water Heater SH22-ING
Eccotemp

SMARTHOME Indoor 6.8 GPM Natural Gas Tankless Water Heater

Zoro # G310919730
Mfr # SH22-ING
product price:  $854.99
/ea
Noritz 199 MBH Outdoor Condensing Natural Gas Tankless Water Heater, 11.1 gpm GQ-C3257WXUSNG
Noritz

199 MBH Outdoor Condensing Natural Gas Tankless Water Heater, 11.1 gpm

Zoro # G521718580
Mfr # GQ-C3257WXUSNG
product price:  $2,290.99
/ea
Rinnai 14.05 " x 10.77 in " x 27.28 " 160000 REP160iP
Rinnai

14.05 " x 10.77 in " x 27.28 " 160000

Zoro # G605721475
Mfr # REP160iP
product price:  $1,129.10
/ea
Mizudo 7.5-GPM Propene Gas Tankless Water Heater, Residential Indoor, 170,000-BTU FDG-CF170AW-LP
Mizudo

7.5-GPM Propene Gas Tankless Water Heater, Residential Indoor, 170,000-BTU

Zoro # G115189789
Mfr # FDG-CF170AW-LP
original price:  $699.99 , new price: $639.99 , 8 percent off
8% off
new price:  $639.99
/ea
Rheem RTG 9.5 GPM 199,900 BTU 120 Volt Residential Outdoor Natural Gas Tankless Water Heater RTG-95XLN-3
Rheem

RTG 9.5 GPM 199,900 BTU 120 Volt Residential Outdoor Natural Gas Tankless Water Heater

Zoro # G021718578
Mfr # RTG-95XLN-3
product price:  $3,181.29
/ea
Rheem RTG 8.4 GPM 180,000 BTU 120 Volt Residential Outdoor Natural Gas Tankless Water Heater RTG-84XLN-3
Rheem

RTG 8.4 GPM 180,000 BTU 120 Volt Residential Outdoor Natural Gas Tankless Water Heater

Zoro # G021718561
Mfr # RTG-84XLN-3
product price:  $1,189.99
/ea
Rheem IKONIC 180 MBH Indoor Condensing Natural Gas/Propane Gas Tankless Water Heater Grey RTGH-SR10I
Rheem

IKONIC 180 MBH Indoor Condensing Natural Gas/Propane Gas Tankless Water Heater Grey

Zoro # G610947846
Mfr # RTGH-SR10I
product price:  $1,849.99
/ea
Rheem RTGH Series 6.8 GPM 120,000 BTU 120 Volt Residential Indoor Liquid Propane Tankless Water Heater RTGH-68DVLP-3
Rheem

RTGH Series 6.8 GPM 120,000 BTU 120 Volt Residential Indoor Liquid Propane Tankless Water Heater

Zoro # G410947824
Mfr # RTGH-68DVLP-3
product price:  $1,189.99
/ea
Rheem RTG Series 199 MBH Outdoor Non-Condensing Propane Gas Tankless Water Heater Grey RUTG-95XLP-3
Rheem

RTG Series 199 MBH Outdoor Non-Condensing Propane Gas Tankless Water Heater Grey

Zoro # G810947813
Mfr # RUTG-95XLP-3
product price:  $1,409.99
/ea
Noritz 199 MBH Indoor Non-Condensing Natural Gas Tankless Water Heater, 9.8 GPM GQ-2857WX-FUSNG
Noritz

199 MBH Indoor Non-Condensing Natural Gas Tankless Water Heater, 9.8 GPM

Zoro # G821718556
Mfr # GQ-2857WX-FUSNG
product price:  $2,423.99
/ea
Richmond Water Heater with Wi-Fi, Natural, 199,900 Btu/hr, 9.5 gpm RMTGH95DVELN-3
Richmond

Water Heater with Wi-Fi, Natural, 199,900 Btu/hr, 9.5 gpm

Zoro # G314149294
Mfr # RMTGH95DVELN-3
product price:  $2,199.99
/ea
Richmond Essential Plus RMTG Series RMTG-95XELP-3 Outdoor Tankless Water Heater with Wi-Fi, Liquid Propane RMTG95XELP-3
Richmond

Essential Plus RMTG Series RMTG-95XELP-3 Outdoor Tankless Water Heater with Wi-Fi, Liquid Propane

Zoro # G016038308
Mfr # RMTG95XELP-3
product price:  $1,599.99
/ea
Mrcool Natural Gas Tankless Water Heater MHWH199NCNU
Mrcool

Natural Gas Tankless Water Heater

Zoro # G007461276
Mfr # MHWH199NCNU
product price:  $1,789.99
/ea
Eccotemp Smart Home Indoor 4.0 GPM Natural Gas Tankless Water Heater SH12-A-NG
Eccotemp

Smart Home Indoor 4.0 GPM Natural Gas Tankless Water Heater

Zoro # G010919726
Mfr # SH12-A-NG
product price:  $559.99
/ea
Rheem RTG Series RTG-95XELN-3 Outdoor Water Heater, NPT, 199,900 Btu/hr BTU, 0.82 UEF Energy Efficiency RMTG95XELN-3
Rheem

RTG Series RTG-95XELN-3 Outdoor Water Heater, NPT, 199,900 Btu/hr BTU, 0.82 UEF Energy Efficiency

Zoro # G316038305
Mfr # RMTG95XELN-3
product price:  $1,499.99
/ea
Furrion Water Heater Access Door FWH09EA-PS-AM
Furrion

Water Heater Access Door

Zoro # G607057275
Mfr # FWH09EA-PS-AM
product price:  $72.95
/ea
Rheem Gas Tankless Water Heater, 56.7 in H RTRS-WH220DVLN
Rheem

Gas Tankless Water Heater, 56.7 in H

Zoro # G916389210
Mfr # RTRS-WH220DVLN
product price:  $6,909.99
/ea
Rheem RTG 8.4 GPM 180,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater RTG-84DVLN-3
Rheem

RTG 8.4 GPM 180,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater

Zoro # G321718575
Mfr # RTG-84DVLN-3
product price:  $2,352.99
/ea
Richmond Rheem Tankless Water Heater with Wi-Fi, LPG, 199,900 Btu/hr BTU, 9.5 gpm RMTGH95DVELP-3
Richmond

Rheem Tankless Water Heater with Wi-Fi, LPG, 199,900 Btu/hr BTU, 9.5 gpm

Zoro # G816567411
Mfr # RMTGH95DVELP-3
product price:  $2,299.99
/ea
Rheem RTGH Series 6.8 GPM 120,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater RTGH-68DVLN-3
Rheem

RTGH Series 6.8 GPM 120,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater

Zoro # G510947854
Mfr # RTGH-68DVLN-3
product price:  $1,219.99
/ea
Rheem Gas Tankless Water Heater, Natural Gas RTGH-S11i
Rheem

Gas Tankless Water Heater, Natural Gas

Zoro # G511677668
Mfr # RTGH-S11i
product price:  $1,567.99
/ea
Noritz 120 MBH Indoor Condensing Natural Gas Tankless Water Heater, 6.6 GPM NRC661-DV-NG
Noritz

120 MBH Indoor Condensing Natural Gas Tankless Water Heater, 6.6 GPM

Zoro # G221718569
Mfr # NRC661-DV-NG
product price:  $1,638.99
/ea
Noritz 140 MBH Outdoor Non-Condensing Natural Gas Tankless Water Heater, 6.6 GPM NR662-OD-NG
Noritz

140 MBH Outdoor Non-Condensing Natural Gas Tankless Water Heater, 6.6 GPM

Zoro # G621718572
Mfr # NR662-OD-NG
product price:  $1,367.99
/ea
Noritz 157 MBH Indoor Condensing Natural Gas Tankless Water Heater, 7.1 GPM NRC711-DV-NG
Noritz

157 MBH Indoor Condensing Natural Gas Tankless Water Heater, 7.1 GPM

Zoro # G721718557
Mfr # NRC711-DV-NG
product price:  $2,003.99
/ea
Mizudo 5.1-GPM Natural Gas Tankless Water Heater, Residential Indoor, 120,000-BTU FDG-CS120BW-NG
Mizudo

5.1-GPM Natural Gas Tankless Water Heater, Residential Indoor, 120,000-BTU

Zoro # G815189799
Mfr # FDG-CS120BW-NG
original price:  $599.99 , new price: $509.99 , 15 percent off
15% off
new price:  $509.99
/ea
Rheem Gas Tankless Water Heater, 54.3 in H RTRS-FS422XLN
Rheem

Gas Tankless Water Heater, 54.3 in H

Zoro # G216389217
Mfr # RTRS-FS422XLN
product price:  $15,169.99
/ea
Rheem Gas Tankless Water Heater, 54.3 in H RTRS-FS411DVLP
Rheem

Gas Tankless Water Heater, 54.3 in H

Zoro # G616389237
Mfr # RTRS-FS411DVLP
product price:  $8,099.99
/ea
Eccotemp L10  Portable Outdoor 3.0 GPM Tankless Water Heater L10
Eccotemp

L10 Portable Outdoor 3.0 GPM Tankless Water Heater

Zoro # G102751685
Mfr # L10
product price:  $369.99
/ea
Eccotemp L5 Portable Outdoor 1.5 GPM Tankless Water Heater L5
Eccotemp

L5 Portable Outdoor 1.5 GPM Tankless Water Heater

Zoro # G302751621
Mfr # L5
product price:  $176.99
/ea
Eccotemp Luxe 1.5 GPM Outdoor Portable Tankless Water Heater w/ EccoFlo 12V Pump and Strainer EL5-PS
Eccotemp

Luxe 1.5 GPM Outdoor Portable Tankless Water Heater w/ EccoFlo 12V Pump and Strainer

Zoro # G102751630
Mfr # EL5-PS
product price:  $289.99
/ea
Noritz 199 MBH Indoor condensing Natural Gas Tankless Water Heater GQ-C3260WZ-FFUSNG
Noritz

199 MBH Indoor condensing Natural Gas Tankless Water Heater

Zoro # G421718567
Mfr # GQ-C3260WZ-FFUSNG
product price:  $3,037.99
/ea
Eccotemp L5 Portable Outdoor Tankless Water Heater w/ EccoFlo Diaphragm 12V Pump & Strainer L5-PS
Eccotemp

L5 Portable Outdoor Tankless Water Heater w/ EccoFlo Diaphragm 12V Pump & Strainer

Zoro # G402751651
Mfr # L5-PS
product price:  $271.99
/ea
Eccotemp L10 Portable Outdoor Tankless Water Heater w/ EccoFlo Diaphragm 12V Pump & Strainer L10-PS
Eccotemp

L10 Portable Outdoor Tankless Water Heater w/ EccoFlo Diaphragm 12V Pump & Strainer

Zoro # G302751669
Mfr # L10-PS
product price:  $409.99
/ea
Gas Tankless Water Heaters (136 items) - Page 2
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About Gas Tankless Water Heaters

Gas Tankless Water Heaters are an efficient and convenient way to provide hot water on demand. Rather than storing hot water in a tank, these units use natural gas or liquid propane to heat water as it passes through the unit. This means you can have endless hot water without worrying about running out or wasting energy. Gas Tankless Water Heaters are popular in both residential and commercial settings due to their energy efficiency, space-saving design, and long lifespan.

Types of Gas Tankless Water Heaters

Gas Tankless Water Heaters come in both indoor and outdoor models, and can be powered by either natural gas or liquid propane. The type of gas used can impact the unit's efficiency and cost, so it's important to choose the right type for your needs. Residential units typically run on 120V or 240V electricity, while commercial units may require higher voltage. Outdoor units are typically more expensive but do not require venting, while indoor units require proper ventilation to prevent carbon monoxide buildup.

How Gas Tankless Water Heaters are Made

Gas Tankless Water Heaters are typically made with a heat exchanger, which heats the water as it passes through. The heat exchanger is made of materials such as copper, stainless steel, or aluminum, which are chosen for their ability to transfer heat efficiently. The units also include a burner, which is fueled by natural gas or liquid propane, and a computer control module, which regulates the unit's temperature and flow rate. Some units may also include additional features such as a recirculation pump or condensing technology to further increase efficiency.

Industries that use Gas Tankless Water Heaters

Gas Tankless Water Heaters are commonly used in industries such as hospitality, food service, and healthcare, where hot water is needed on demand for tasks such as cooking, cleaning, and bathing. In residential settings, they are popular in homes with multiple bathrooms or large families who need a steady supply of hot water. They are also used in commercial settings such as laundromats, car washes, and factories, where hot water is needed for a variety of applications. Gas Tankless Water Heaters are often installed by licensed professionals who can ensure proper ventilation, gas line connections, and electrical wiring.

Find the Gas Tankless Water Heaters You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of plumbing tools & supplies, along with other equipment and essentials to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

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