Best Gas Tankless Water Heaters

Compare Products

Choose upto 5 items for side by side feature comparison

Wishlist

Go to collections

Shop Best Gas Tankless Water Heaters

Ads

Eccotemp Fvi12-NG 4 GPM 74500 BT…

Rheem RTEX-18 Classic 18Kw 4.4 …

Rheem RTEX-24 Classic 5.9 GPM …

$614.76

Build

(567)

Eccotemp 45HI-LP HB 6.8 GPM Resi…

$869.00

Build

(20)

Eccotemp 45HI-NG 6.8 GPM 140000 …

$599.00

Build

Free shipping

Rheem RTEX-11 Professional Clas…

$322.84

Build

(166)

Eccotemp 45HI-LP VB 6.8 GPM Resi…

$879.00

Build

(20)

Eccotemp SH22-ING 6.8 GPM 140…

$699.00

Build

Free shipping

Eccotemp FVI12-NG VB 4.8 GPM …

$579.00

Build

Free shipping

Eccotemp SH22-NG 6.8 GPM 140000 …

$699.00

Build

Free shipping

Eccotemp I12-NG HB 4.8 GPM Resi…

Rheem rectgh-s10in Ikonic 10.1 GPM …

$1,744.29

Build

Free shipping

Rheem RTGH-90DVLN-3 Rhee…

$1,274.09

Build

960+ viewed

Rheem RTG-70XLN-3 High Eff…

$854.10

Amazon.com

(1)

Stiebel Eltron Mini 6-2 Mini 1 GPM 5…

$159.00

Build

Free shipping

Eccotemp 6GB-ILP Builders Series 6 …

$599.00

Build

Free shipping

Rinnai ru160in Condensing Tankl…

$1,172.43

Amazon.com

(112)

Rheem RTG-95DVLN-1 9.5 GP…

$1,243.00

Build

(34)

Eccotemp 6.5GB-ILP Builders Serie…

$639.00

Build

Free shipping

Stiebel Eltron Mini 6-2 Mini 1 GPM 5…

$159.00

Build

Free shipping

Eccotemp 6GB-ILP Builders Series 6 …

$599.00

Build

Free shipping

Rheem RTG-95DVLN-1 9.5 GP…

$1,243.00

Build

(34)

Eccotemp 6.5GB-ILP Builders Serie…

$639.00

Build

Free shipping

Rinnai ru160in Condensing Tankl…

$1,172.43

Amazon.com

(112)

Rheem RTGH-RH11DVLN Presti…

$1,797.47

Build

(20)

Rheem RTEX-04 Classic 6Kw Tank…

$189.84

Build

(139)

Rheem RTG-95XLN-1 9.5 GP…

$1,287.10

Build

(21)

Rinnai Sensei 11 GPM 199000 BT…

$1,537.90

Build

(541)

Rinnai V53den Outdoor Whole H…

$669.71

Build

(1K+)

Rheem RTG-95DVLN-3 9.5 GP…

$1,243.00

Build

Free shipping

Rheem RTG-70XLP-3 Rheem …

Rheem RTG-84XLN-1 Mid-Effi…

$843.95

Amazon.com

(97)

Rinnai High Efficiency 0.3 GP…

FOGATTI Natural Gas Tankless Wa…

$499.00

Amazon.com

(93)

Showing 1 - 36 out of 180 results for "best gas tankless water heaters"
Sort by:
Featured
Featured
Price - High To Low
Price - Low To High
1. Saved
  Save to wishlist
  Eccotemp SH22-NG Smarthome Na…
  $579.00
  WebstaurantStore
2. Saved
  Save to wishlist
  (3)
  Eccotemp FVI12-NG Natural Gas In…
  $329.00
  WebstaurantStore
3. Saved
  Save to wishlist
  (49)
  Eccotemp I12-NG Natural Gas Indo…
  $399.00
  WebstaurantStore
4. Saved
  Save to wishlist
  (25)
  Eccotemp 45H-NG Natural Gas Out…
  $559.00
  WebstaurantStore
5. Saved
  Save to wishlist
  (1)
  MAREY GA10FNG 2.64 GPM, 68,2…
  $230.71
  Amazon.com
  Free shipping
6. Saved
  Save to wishlist
  (7)
  Rheem RTGH-95DVLN-3 Rheem R…
  $1,499.00
  2%cash back
  ✕
  Cash back from Microsoft
  This is an offer from Microsoft. You'll get 2% cash back on this item from Microsoft Cashback. Learn more | Terms & conditions
  Build
7. Saved
  Save to wishlist
  (8)
  Rheem RTGH-84DVLN-3 Rheem R…
  $1,221.43
  2%cash back
  ✕
  Cash back from Microsoft
  This is an offer from Microsoft. You'll get 2% cash back on this item from Microsoft Cashback. Learn more | Terms & conditions
  Build
8. Saved
  Save to wishlist
  Eccotemp Sh22i-NG Smarthome Na…
  $579.00
  WebstaurantStore
9. Saved
  Save to wishlist
  (10)
  Eccotemp 6GB-ING Natural Gas Ind…
  $599.00
  WebstaurantStore
10. Saved
  Save to wishlist
  (1)
  Rheem RTG-70DVLN-1 7 GPM 150…
  $822.14
  2%cash back
  ✕
  Cash back from Microsoft
  This is an offer from Microsoft. You'll get 2% cash back on this item from Microsoft Cashback. Learn more | Terms & conditions
  Build
11. Explore more
  On Demand Water Heater
  Tankless Water Heaters Pros and Cons
  Tankless Hot Water Heater
  Home Depot Tankless Water Heater
12. Saved
  Save to wishlist
  (10)
  Ez Deluxe Direct Vent Tankless Wat…
  $579.90
  Walmart
  Free shipping
13. Saved
  Save to wishlist
  (1)
  Eccotemp 6.5GB-ING Natural Gas I…
  $639.00
  WebstaurantStore
14. Saved
  Save to wishlist
  Eccotemp i12 Indoor 4.0 GPM Natur…
  $419.00
  $574.03
  B2BSupplies.com
  SALE
  Free shipping
15. Saved
  Save to wishlist
  (73)
  Rinnai rucs75in 7.5 GPM Residentia…
  $1,135.90
  2%cash back
  ✕
  Cash back from Microsoft
  This is an offer from Microsoft. You'll get 2% cash back on this item from Microsoft Cashback. Learn more | Terms & conditions
  Build
16. Saved
  Save to wishlist
  (5)
  Eccotemp EL22 NG 6.8 GPM Outdo…
  $519.00
  FactoryPure
17. Great Deal
  Saved
  Save to wishlist
  (68)
  FOGATTI Natural Gas Tankless Wa…
  $379.00
  Amazon.com
  Free shipping
18. Great Deal
  Saved
  Save to wishlist
  (68)
  FOGATTI Propane Gas Tankless W…
  $379.00
  Amazon.com
  Free shipping
19. Saved
  Save to wishlist
  (7)
  Rheem RTGH-95DVELN-3 Super H…
  $1,541.99
  Amazon.com
  Free shipping
20. Saved
  Save to wishlist
  (11)
  Noritz 40 Gal. Tank Replacement N…
  $1,883.10
  DkHardware.com
21. Saved
  Save to wishlist
  Bradford White Infiniti Gr Natural Ga…
  $1,532.05
  PlumbersStock
22. Saved
  Save to wishlist
  (1)
  Rheem RTG-95DVLN-3 High Efficie…
  $1,342.25
  Amazon.com
  Free shipping
23. Saved
  Save to wishlist
  (69)
  Rinnai Super High Efficiency Plus 9 …
  $1,369.62
  $1,521.80
  Lowe's
  SALE
24. Saved
  Save to wishlist
  (13)
  Rheem RTG-84XLN-1 8.4 GPM 180…
  $1,051.80
  2%cash back
  ✕
  Cash back from Microsoft
  This is an offer from Microsoft. You'll get 2% cash back on this item from Microsoft Cashback. Learn more | Terms & conditions
  Build
  Free shipping
25. Saved
  Save to wishlist
  Bradford White Infiniti Gs Natural G…
  $1,282.05
  PlumbersStock
26. Saved
  Save to wishlist
  Rheem RTG-95DVELN-3 High Effici…
  $1,080.99
  Amazon.com
  Free shipping
27. Saved
  Save to wishlist
  (2)
  Rheem Super High Efficiency Cond…
  $1,085.28
  $1,867.00
  Wayfair
  SALE
  Free shipping
28. Saved
  Save to wishlist
  (6)
  Marey G6FLP GAS 6L 1.58 GPM 4…
  $159.00
  FactoryPure
29. Saved
  Save to wishlist
  (334)
  Rinnai rsc199in Smart-Circ Conden…
  $1,867.02
  Amazon.com
  Free shipping
30. Saved
  Save to wishlist
  (35)
  A.O. Smith Signature Series 6.6-GP…
  $1,218.00
  Lowe's
  4.2 mi
31. Popular
  Highest clicks by users
  See all
  Saved
  Save to wishlist
  (18)
  Marey GA24CSANG 8.34 GPM Nat…
  $597.00
  FactoryPure
32. Saved
  Save to wishlist
  Rheem RTG-70XLN-3 7 GPM 1600…
  $804.00
  Build
  Free shipping
33. Saved
  Save to wishlist
  (14)
  Rinnai High Efficiency Non-Conden…
  $1,167.39
  $1,297.10
  Lowe's
  SALE
34. Saved
  Save to wishlist
  (18)
  Rinnai Ru199en 9.8 GPM Outdoor …
  $1,854.74
  FactoryPure
35. Saved
  Save to wishlist
  (12)
  Rinnai Efficiency Series RE 9.7 GP…
  $2,083.50
  DkHardware.com
36. Saved
  Save to wishlist
  Eccotemp Tankless Water Heater, 4…
  $399.00
  Northern Tool
Oops! We are sorry, something went wrong.
Continue your shopping by clicking on another product
Product added to your wishlist! View wishlist
Sign in to see your saved products on any device
Product removed from your wishlist! View wishlist
Sign in to see your saved products on any device
Something went wrong. Please try again later.
Product is added to compare already. Please refresh the page.
Product is not found in compare. Please refresh the page.
5 Products already added. Please delete existing selection to add this.
Ads
✕
Learn how your ads are chosen
build.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: Build.com
Location: United States
Verified by Microsoft Advertising. See more ads from this advertiser on Bing. Learn more about the Microsoft Advertiser Identity Verification Program.
wayfair.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: Wayfair LLC
Location: United States
Verified by Microsoft Advertising. See more ads from this advertiser on Bing. Learn more about the Microsoft Advertiser Identity Verification Program.
amazon.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: Amazon.com Services, Inc
Location: United States
Verified by Microsoft Advertising. See more ads from this advertiser on Bing. Learn more about the Microsoft Advertiser Identity Verification Program.
ebay.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: Ebay Core
Location: United States
Verified by Microsoft Advertising. See more ads from this advertiser on Bing. Learn more about the Microsoft Advertiser Identity Verification Program.
factorypure.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: FactoryPure
Location: United States
See more ads from this advertiser on Bing.
lowes.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: Lowe's Companies, Inc.
Location: United States
Verified by Microsoft Advertising. See more ads from this advertiser on Bing. Learn more about the Microsoft Advertiser Identity Verification Program.
supplyhouse.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: SupplyHouse.com
Location: United States
Verified by Microsoft Advertising. See more ads from this advertiser on Bing. Learn more about the Microsoft Advertiser Identity Verification Program.
webstaurantstore.com
Why you're seeing this ad?
Your current search
Advertiser Details
Name: WebstaurantStore, Inc.
Location: United States
Verified by Microsoft Advertising. See more ads from this advertiser on Bing. Learn more about the Microsoft Advertiser Identity Verification Program.
Why you're seeing this ad?
Your current search
Advertiser Details
Name: intentX
Location: United States
See more ads from this advertiser on Bing.
Ad settings
Rinnai V53DEP V53dep V Model …
$669.71
Build
(1K+)
Rinnai RU Series Super High Efficie…
$1,384.11

$2,473.00
Wayfair
(7)
Rheem Performance Plati…
$1,169.00
Amazon.com
(7)
Rheem RTG-95DVELP-3 9.5 G…
$1,379.00
Build
Free shipping
Tankless Water Heater, 3.17 Gp…
$275.13
eBay
Free shipping
Brand: Forimo
Tankless Water Heater Natural Ga…
$239.99
Amazon.com
(12)
Stiebel Eltron Tempra 29 Trend …
$699.00
Build
Free shipping
Marey GA10FNG 2.64 GPM 68,240 …
$219.00
FactoryPure
(20)
Rinnai v75in Tankless Hot Wat…
$799.99
Amazon.com
(1K+)
Rheem Tankless Water Heater | 25…
$804.00

$1,134.00
Wayfair
(7)
FOGATTI Propane Gas Tankless Wa…
$699.00
Amazon.com
(365)
Rinnai Tankless Water Heater (Int …
$2,043.99
AccuWeather Shop
Free shipping
Rinnai High Efficiency 6.5 GP…
$735.71

$868.55
Lowe's
Rheem Tankless Water Heater Nat…
$950.00
eBay
Free shipping
Rinnai V53dep Tankless Hot Wat…
$636.22
Amazon.com
(1K+)
AO Smith ATI-240H-N 160,000 …
$1,022.00
SupplyHouse.com
(5)
Brand: Consta
Tankless Water Heater, 3.17 Gp…
$309.99
eBay
Free shipping
Eccotemp FVI12-NG Natural Gas I…
$329.00

$419.00
WebstaurantStore
(20)
FOGATTI Natural Gas Tankless Wa…
$599.00
Amazon.com
(317)
Curbside
A.O. Smith Signature Series …
$1,029.00
Lowe's
- Top Gas Tankless Water Heaters | Buyer's Guide Best Picks 2024
  https://buyersguide.org/Top-10-Guide/Water-Heater
  AdCompare the Best Gas Tankless Water Heaters Based on Price, Features, Ratings & Reviews. Looking for the Best Gas Tankless Water Heaters? Compare Before You Buy.
  Site visitors: Over 1M in the past month
  Easy To Use · Expert Reviews · Temperature Control · Energy Efficiency
- Top 5 Tankless Water Heater | Tankless Water Heater Guide
  https://bestbuyguidebook.com/the-best
  AdShop The Best Tankless Water Heater. Hand Picked By Our Experts. Looking For The Best Tankless Water Heater? See Our Top Picks Of The Year
  Site visitors: Over 10K in the past month
  Free 2-Day Shipping · Compare The Best · #1 Buying Guide · Tested & Reviewed
- Water Heater Prices
  https://localhvacquotes.com/Water-Heater
  AdFirst, Enter Your Zip Code. Second, Find Up To Four Local Pros.|Start Now
- 1
- 2
- 3
- 4
- 5

Shop Best Gas Tankless Water Heaters

Show Only

Brand

Price

Material

Seller

Top Gas Tankless Water Heaters | Buyer's Guide Best Picks 2024

Top 5 Tankless Water Heater | Tankless Water Heater Guide

Water Heater Prices