Shop All Savings
Appliances
Bath & Faucets
Blinds & Window Treatment
Building Materials
Lumber & Composites
Cleaning
Decor & Furniture
Lighting & Ceiling Fans
Doors & Windows
Electrical
Flooring & Area Rugs
Hardware
Heating & Cooling
Kitchen & Kitchenware
Lawn & Garden
Outdoor Living & Patio
Paint
Plumbing
Seasonal Decor
Smart Home
Storage & Organization
Tools
Automotive
Furniture
Gift Cards
Credit Cards
View All Home Services
Tool Rental
Benefits & Services For the Pro
Project Calculators
View All DIY Projects
Local Ad
Store Finder
Site Map
#1 Home Improvement Retailer
Select store
...
...
Cart
Select store
...
...
Shop All
Services
DIY
Log In
Cart
...
Home
/
Plumbing
/
Water Heaters
/
Tankless Water Heaters
/
Tankless Gas Water Heaters
Indoor Tankless Gas Water Heaters
Get It Fast
In Stock at Store Today
Next-Day Delivery
Filters
Filters
Clear All
Indoor/Outdoor: Indoor
Water Heater Features: WiFi
Get It Fast
In Stock at Store Today
Next-Day Delivery
Availability
Show Out of Stock
Department
Plumbing
Water Heaters
Tankless Water Heaters
Tankless Gas Water Heaters
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Brand
Rinnai
Rheem
Eccotemp
Price
to
Apply
$400 - $500
$500 - $600
$700 - $800
$800 - $900
$900 - $1000
$1000 - $2000
$2000 - $3000
Special Values
Flow Rate @ 35°F Rise (gallons/min)
3.8 gal (US)/min
4.5 gal (US)/min
4.9 gal (US)/min
5.3 gal (US)/min
6.5 gal (US)/min
6.6 gal (US)/min
6.8 gal (US)/min
7.5 gal (US)/min
7.9 gal (US)/min
8 gal (US)/min
8.0 gal (US)/min
8.4 gal (US)/min
8.5 gal (US)/min
9.0 gal (US)/min
9 gal (US)/min
9.4 gal (US)/min
9.5 gal (US)/min
9.8 gal (US)/min
Number of Showers
1-2
1-3
2-4
Gas Type
Propane
Natural Gas
Efficiency Level
High
Super High
Part Warranty
2 Year
5 Year
BTU Rating
Less than 60,000
100000 - 140000
140000 - 180000
180000 - 220000
Application Type
Residential
Commercial
Water Heater Features
Wall Mounted
WiFi
Freeze Protection
Ultra LoNox
Overheat Protection
Digital Display
Vacation Mode
Energy Usage Tracking
Indoor/Outdoor
Indoor
Outdoor
Eco Friendly
Energy Star
Let Us Do It For You
Installation
View Results
All Filters
Flow Rate @ 35°F Rise (gallons/min)
Number of Showers
Gas Type
Efficiency Level
Part Warranty
Indoor/Outdoor: Indoor
Water Heater Features: WiFi
Clear All
41 Results
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
More Options Available
Expert Installation Available
$
1469
.
00
Buy
3
or more
$1322.10
(761)
Rheem
Performance Platinum 9.5 GPM Smart Super High Efficiency Indoor or Outdoor Natural Gas Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
1080
.
99
Buy
3
or more
$972.89
(128)
Rheem
Performance Plus 9.5 GPM Smart Non-Condensing Indoor Natural Gas Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
944
.
10
Buy
3
or more
$849.69
(202)
Rheem
Performance Plus 8.4 GPM Smart Non-Condensing Indoor Natural Gas Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
994
.
77
$1105.30
Save
$110.53
(10%)
Buy
3
or more
$895.29
(39)
Rinnai
High Efficiency Non-Condensing 8.5 GPM Residential 180,000 BTU Interior Natural Gas Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
1384
.
11
$1537.90
Save
$153.79
(10%)
(102)
Rinnai
Super High Efficiency Plus 11 GPM Residential 199,000 BTU/h 58.3 kWh Propane Interior Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
1537
.
90
Rinnai
Super High Efficiency Plus 11 GPM Residential 199,000 BTU Natural Gas Interior Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
725
.
13
$805.70
Save
$80.57
(10%)
Buy
3
or more
$652.62
(39)
Rinnai
High Efficiency Non-Condensing 5.3 GPM Residential 140,000 BTU Interior Natural Gas Tankless Water Heater
Add to Cart
Compare
More Options Available
Expert Installation Available
$
1274
.
09
Buy
3
or more
$1146.68
(435)
Rheem
Performance Platinum 9.0 GPM Smart Super High Efficiency Indoor or Outdoor Natural Gas Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
1167
.
39
$1297.10
Save
$129.71
(10%)
Buy
3
or more
$1050.65
(39)
Rinnai
High Efficiency Non-Condensing 9.8 GPM Residential 199,000 BTU Interior Natural Gas Tankless Water Heater
Add to Cart
Compare
Top Rated
More Options Available
Expert Installation Available
$
1274
.
90
Buy
3
or more
$1147.41
(121)
Rheem
Performance Platinum 9.5 GPM Smart Super High Efficiency Indoor or Outdoor Liquid Propane Tankless Water Heater
Add to Cart
Compare
Top Rated
More Options Available
Expert Installation Available
$
1274
.
09
Buy
3
or more
$1146.68
(80)
Rheem
Performance Platinum 9.0 GPM Smart Super High Efficiency Indoor or Outdoor Liquid Propane Tankless Water Heater
Add to Cart
Compare
Expert Installation Available
$
1369
.
62
$1808.31
Save
$438.69
(24%)
Buy
3
or more
$1232.66
Limit 3 per order
(86)
Rinnai
Super High Efficiency Plus 9 GPM Residential 160,000 BTU Interior Natural Gas Tankless Water Heater
Add to Cart
Compare