clean hot water - fast hot water - for 20 years

Over 3,500 Installed

TanklessGuru
  • Sign In
  • Create Account

  • Orders
  • My Account
  • Signed in as:

  • filler@godaddy.com


  • Orders
  • My Account
  • Sign out

  • Home & Pricing
  • Free Home Evaluation Form
  • Cold Weather Prep.
  • Filtration Info. & Videos
  • Tankless Service Request
  • Reviews
  • Financing Available
  • Warranty or Questions
  • Federial Tax Credit
  • About TanklessGuru.com
  • Power Outage
  • High Water Pressure
  • Typical Installations
  • Culligan For Your House
  • Wholesale Pricing
  • Shop
  • More
    • Home & Pricing
    • Free Home Evaluation Form
    • Cold Weather Prep.
    • Filtration Info. & Videos
    • Tankless Service Request
    • Reviews
    • Financing Available
    • Warranty or Questions
    • Federial Tax Credit
    • About TanklessGuru.com
    • Power Outage
    • High Water Pressure
    • Typical Installations
    • Culligan For Your House
    • Wholesale Pricing
    • Shop

Over 3,500 Installed

TanklessGuru

Signed in as:

filler@godaddy.com

  • Home & Pricing
  • Free Home Evaluation Form
  • Cold Weather Prep.
  • Filtration Info. & Videos
  • Tankless Service Request
  • Reviews
  • Financing Available
  • Warranty or Questions
  • Federial Tax Credit
  • About TanklessGuru.com
  • Power Outage
  • High Water Pressure
  • Typical Installations
  • Culligan For Your House
  • Wholesale Pricing
  • Shop

Account


  • Orders
  • My Account
  • Sign out


  • Sign In
  • Orders
  • My Account

play Video

Learn the real difference between Tank water heaters vs Tankless USA tankless water heaters

complete a FREE home Evaluation Form

Call 214-326-4752 or Complete Home Evaluation Form
FREE home evaluation form

MODEL TUSAP Rheem Culligan Pre-Assembly Tankless System with Hot Water Crossover Circulation.

Our most popular model.

Regular Price $6,395

Save $1,400. $4,995

Jan. 2026 Discount 


All material, labor, and tax included, plus 5-Year Part & Labor Warranty (see Warranty)


MODEL TUSAD Rheem Culligan Pre-Assembly Tankless System for Existing Dedicated Hot Water Return Circulation.

  Call For Special Pricing

5-Year Part & Labor Warranty (see Warranty)

ever 4 menutes an 8 to 10 years old tank water heat

ever 4 menutes an 8 to 10 years old tank water heat

ever 4 menutes an 8 to 10 years old tank water heat

ever 4 menutes an 8 to 10 years old tank water heat

ever 4 menutes an 8 to 10 years old tank water heat

ever 4 menutes an 8 to 10 years old tank water heat

2025 FEDERAL TAX CREDIT

CLICK HERE - Federal Tax Credit

news from rheem...

PRESS RELEASE "RHEEM MANUFACTURING FOR PUBLICATION"

"Tankless USA Has Solved The Bad Tankless Water Heater Installation Problem

Their system saves time, money and no tankless knowledge is needed for a safe install.

With consumer interest growing in sustainable home energy solutions, tankless water heaters have exploded in popularity. Unfortunately, many plumbers lack the knowledge of how to install or diagnose a problem with a tankless water heater, resulting in an unsafe, expensive, and time-consuming installation. Tankless USA, an expert in tankless water heater installations for more than 15 years, has developed a solution to that challenge."

MODEL TUSA Dual Rheem/Culligan Pre-Assembly Tankless System for Dedicated Hot Water Return Line Circulation.

 Call For Available Special Pricing

How Our hot water Crossover Circulation Works

Crossover Valve is for Faster Hot Water

We installed our advanced TGP Crossover Valve under the sink, which takes the longest to get hot water. This location allows the pump to move hot water to all the sinks and showers. The TGP Crossover Valve works with the temperature of the water. It shuts off when the hot water is 104 degrees and opens back up 95 degrees.   

All Above Pre-Assembly Tankless Systems Include

  • The system is mounted on a 1/2" oil-based finished plywood board. 
  • (1) Rheem RTGH-95DVL-3 Natural Gas or LP tankless condensing unit. 
  • (1) The Rheem tankless unit computer controls the Rheem/Taco circulation system pump. 
  • (1) TUSAP Only-Grundfos whole-house hot water circulation crossover valve and braided supply lines are installed under the sink furthest from the tankless unit.  TUSAD: Only connect the circulation pump to the existing dedicated hot water return line.     
  • (1) Culligan whole-house filtration system for the cold water inlet side of the tankless unit.
  • (1) 5-micron 3M sediment/scale filter cartridge. 
  • (1)  Aluminum tankless and filter drain pan with ceramic coating. 
  • (1)  Hot and cold service valves. 
  • All necessary PEX, PVC piping, fittings, and connectors. 
  • Run and test the system.
  • TanklessGuru's warranty is five years, parts and labor on the complete system      installed (does not include filter cartridge)
  • No annual flush is required. 
  • Rheem's warranty is one-year parts and labor, five years parts, and fifteen years      heat exchanger limited (performed by Tankless USA only) 

The price includes removing recycle tank(s) 2 only and all materials, labor, and tax.

It does not include Special installation requirements (most houses built after 2009 don't need any changes)

Filtered Water for Your Home

Each Of Our Tankless Systems Has Water Filtration "that is better than any RO system"

With our tankless water heater system you get 5-microns of filtered water

Our Culligan/3M Filtration Only Requires One Cartridge Change Per Year...

Our Culligan/3M water filtration system will eliminate hard water and toxic soup, leaving you with clean, drinkable hot water.

Here are just some of the impurities that will be eliminated;


  • 90% microplastics
  • Most calcium carbonate  
  • Some bacteria
  • Anthrax
  • Some molds
  • Paint chemicals
  • Red blood cells
  • Asbestos
  • Fertilizer 
  • Insecticides 
  • Chlorine
  • Iron
  • Chlorine
  • Sulfur

Hot Water Tanks are BAD

One 50-gallon tank water heater can collect 8 lbs. of toxic sediment

Do Not Drink Tap Water That's Not Filtered!

The 10 U.S. states with the worst tap water!

2024

1. Alabama          6. Pennsylvania

2. Maryland         7. Ohio

3. Oklahoma       8. Mississippi

4. New Mexico    9. Arizona

5. TEXAS              10. Indiana

See The Difference...

Tankless USA Water Heater System

  •  20-year life
  • 100% filtered hot water
  • 93% efficient
  • Endless hot water
  • 15-year heat exchanger warranty plus our 5-year parts and labor warranty on everything


Typical Tank Water Heater

 

  • 8-year life 
  • Collects toxic water 
  • 38% efficient
  • Can produce only 35 gallons of hot water
  • 6-year warranty
  • Will no longer be available in 2027

Did You Know

Hot Water Tanks to be Eliminated

The Federal government’s mandated energy-saving requirements by 2027 have eliminated the use of standard tank water heaters and placed more emphasis on tankless water heaters, which are by far the best in high-efficiency water heating.  

Frequently Asked Questions

Please contact us if you cannot find an answer to your question.

We offer you a free estimate but you must fill out our request for an estimate form.


Warranty

Our exclusive 5-year Parts and Labor Warranty covers only the Rheem/Culligan tankless Pre-Assembly package. This warranty covers all components under normal operating conditions. The Rheem/Culligan tankless package includes the RTGH-95DVLN-3, service valves, pump, pan, piping, PVC venting connection, and valves. 


Our warranty does not include components damaged by high water pressure over 75 psi, any component freezing, like filter housing, pan drain, pipe freezing, power failure damage, or any customer-caused damage. Also, it does not include piping connected to the TUSAP Pre-Assembly, existing metal roof vent leaking and sink supply lines, or existing sink valves/stops where the crossover valve is connected. Also, does not include filter cartridge replacement or flame rod service caused by dirty natural gas. 


This warranty works in conjunction with Rheem's warranty.



The number of tankless units needed in a home is based on the number of showers you have. i.e., a 3-4 shower home only requires one TUSAP Rheem/Culligan Pre-Assembly Tankless System


Most homes built after 2009 should have larger gas lines needed to support a tankless system. Of the last 450 units we installed, we only had to upgrade  3 gas lines.

During our Free Estimate visit, we will determine if your home has larger gas lines.

If gas line modifications are required, we will show that cost on our final written estimate.


Free Evaluation Form

Free Evaluation Form

We strive to be in constant communication with our customers and non-customers. For get a free estimate or if you have questions or special requests, just drop us a line. We look forward to serving you!

Tankless USA

Sales and Service Areas

Collin County
North Dallas
East Denton County

Free Evaluation Form

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Cancel

Google Tag


Copyright © 2025 Tankless USA - All Rights Reserved.

  • Home & Pricing
  • Free Home Evaluation Form
  • Cold Weather Prep.
  • Tankless Service Request
  • Reviews
  • Financing Available
  • Power Outage
  • High Water Pressure
  • Culligan For Your House
  • Privacy Policy
  • Terms and Conditions

Powered by

This website uses cookies.

We use cookies to analyze website traffic and optimize our website and your experience. By accepting our use of cookies, your data will be aggregated with all other user data.

DeclineAccept