What Size Tankless Water Heater Do I Need
Size matters when it comes to your tankless water heater. In fact, it is the mo...
Local Pickup FAQ's
Hover to zoom
1 of 1
Rheem RTGH - 3.8 GPM at 60° F Rise - 0.91 UEF - Gas Tankless Water Heater - Outdoor
Model:
RTGH-68XLN-2
+
Share This Product
Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Optional Accessories
10
Model: ScaleRx34
$150.00
In-Stock
$165.00
Factory-Direct
Model: PD415188
$99.00
Model: PD415189
$139.00
Model: RTG20227
$89.00
Model: RTG20220AB
$99.00
Factory-Direct
Model: 103000038
$310.46
Only 2 In-Stock
Model: 44443WPR
$113.00
In-Stock
Frequency
Frequency
Select how often you will receive your air filters, we offer many options to meet your air quality standards.
Quantity
Quantity
This will be how many filters you receive per delivery.
Quantity
$24.50
In-Stock
Frequency
Frequency
Select how often you will receive your air filters, we offer many options to meet your air quality standards.
Quantity
Quantity
This will be how many filters you receive per delivery.
Quantity
$205.00
In-Stock
Features
Fuel
Natural Gas
Location
Outdoor
# of Showers
1.8
UEF
0.91
- Low Flow Activation
- Ideal performance even in low demand situations, the Rheem RTGH has a minimum flow rate of 0.26 GPM and a minimum activation flow rate of 0.40 GPM that will ensure you will receive hot water when you need it.
- EcoNet® Compatible
- With the ability to be connected to the EcoNet® mobile app by using the Tankless EcoNet® Accessory Kit (sold separately) you can receive mobile alerts for notifications and maintenance reminders.
- Water Savings Setting
- Save up to 1,100 gallons of water a year with the Water Savings Setting on the Rheem RTGH tankless water heater. Water flow is decreased through the pipes until the temperature reaches the heater's set temperature.
- Built-In Condensate Neutralizer
- An industry first, the Rheem RTGH comes with a built-in condensate neutralizer. Safely dispose of condensate without additional installation cost and time.
Rheem has been the leader in water heating for nearly 100 years, offering savings, comfort and the protection you need. Providing continuous hot water in a compact, space savings design, Rheem tankless water heaters are the perfect solution for any sized home. Rheem RTGH series can safely dispose of condensate with its industry first built-in condensate neutralizer.
California residents see
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
For more information go to: www.p65Warnings.ca.gov
Specifications
RTGH-68XLN-2
Overview
Product Category
Water Heater - Tankless
UPC
020352697543
General Information
Type
Tankless Water Heater
Product Line
Prestige
Product Category
Water Heater - Tankless
Medium
Medium
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Heat Exchanger Material
Stainless Steel
Fuel Type
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Natural Gas
Combustion Type
Combustion Type
Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Condensing
Vent Type
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Outdoor (No Venting)
Storage Type
Tankless
Application
Residential
Mount Type
Wall
Installation Location
Outdoor
Maximum Altitude
8400 Feet
Includes Pump
No
Gas Conversion Kit
Not Available
Performance
Maximum Input Capacity
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
120000 BTU
Minimum Input Capacity
11000 BTU
Flow Rate at 40F Temperature Rise
Flow Rate at 40F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
6.0 GPM
Flow Rate at 50F Temperature Rise
Flow Rate at 50F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
4.6 GPM
Flow Rate at 60F Temperature Rise
Flow Rate at 60F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
3.8 GPM
Flow Rate at 70F Temperature Rise
Flow Rate at 70F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
3.3 GPM
Uniform Energy Factor
Uniform Energy Factor
Uniform Energy Factor (UEF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater.
0.91
Minimum Flow Rate
0.26 GPM
Ultra Low NOx Emissions
Ultra Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More
Yes
Low NOx Emissions
Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Low NOx appliances emit less than 40 ng/J (nanogram per Joule) of NOx. Learn More
Yes
Electrical Data
Voltage
120 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Product Height
27 1/2 Inches
Product Width
18 1/2 Inches
Product Depth
9 3/4 Inches
Shipping Width
12 5/8 Inches
Shipping Depth
22 5/8 Inches
Shipping Length
37 3/4 Inches
Shipping Weight
77 Pounds
Certifications
CSA Listed
Yes
AHRI Certified
Yes
NSF Certified
NSF Certified
The National Sanitation Foundation has developed public health standards and certification programs to protect the world's food, water, consumer products and environment.
Yes
AHRI Reference Number
202067511
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
12 Years
Reviews
(5)
Rheem Tankless RTGH-68XLN-2 Reviews & Ratings
Customer Photos and Videos
High Quality Product
By Gali R.
Santa Cruz, California
Purchased 08/27/2020 |
Review Posted 10/08/2020
It is amazing and it works great!
Gali R. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Quiet, Light Weight, Fast, High Quality
Cons:
Expensive
Nice water heater.
By Nathan C.
Milford, New Hampshire
Purchased 07/15/2020 |
Review Posted 10/04/2020
I was looking for a good tankless water heater to replace my existing conventional water heater. This unit had the best features for the best price. There are a lot of options when it comes to tankless water heaters. I have had good luck with Rheem products. The conventional water heater I was replacing was a 13 year old Rheem that was still going strong. It was a shame to take it out operation but I wanted the direct vent and efficiency of the tankless. Now I can remove the stack to the roof and make room for additional closet space and solar panels!
Nathan C. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Best tankless
By Walter H.
Orinda, California
Purchased 04/19/2020 |
Review Posted 06/03/2020
I have a big property up on the north coast of California in Anchor Bay right on the ocean . I have two guest houses and a spa house with a Rheem tankless on each . Everything rots out there quick especially if there is metal involved. They are all going strong after 12years . So I just purchased two more for my main house and guest house in Orinda ca. Love them ‼️
Walter H. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Very pleased with this product
By Michael S.
Odessa, Florida
Purchased 02/21/2020 |
Review Posted 04/04/2020
This product was very easy to install and has worked flawlessly so far. Endless hot water and delivered to the furthest point in the house in about 18 seconds. Very pleased!
Michael S. Recommends This
Was this review helpful?
Rating Breakdown
4/5
4/5
5/5
4/5
Sweet water heater
By John N.
Iron Mountain, Michigan
Purchased 03/10/2020 |
Review Posted 04/02/2020
This unit pumps hot water from ground water temp of 37 degrees with no problems even with 3/8 inch tubing from propane tank vs the recommended 1/2 inch tubing. Love it!
John N. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
How-To Articles
Signs You Need a New Water Heater
You’ve heard the stories. A 60-gallon hot water heater tank ruptures, flo...
How to Pick the Perfect Tankless Water Heater
Imagine an unlimited supply of hot water. That's the tankless promise. Mo...
eComfort How-To Library
Articles, Tips and Buying Guides from Our Experts
Manuals
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Rheem RTGH - 3.8 GPM at 60° F Rise - 0.91 UEF - Gas Tankless Water Heater - Outdoor
Customer Review Images
