Tankless Water Heater Replacement in Minot, ND
Upgrade your water heating system with a high-efficiency tankless unit from HPN Plumbing in Minot, ND, for long-term comfort and savings.
- Experienced, Licensed Plumbers
- Fast Tankless Replacement
- Fast Tankless Installation
- Isolation Valves Installed Standard
Expert Tankless Water Heater Replacement in Minot, ND.
Contact HPN Plumbing today for a free estimate on your tankless water heater replacement.
Reliable Tankless Water Heater Replacement for Minot, ND Homes
When it comes to tankless water heater replacement in Minot, ND, HPN Plumbing is the trusted choice. We understand the demands that homes in North Dakota place on water heaters, from mineral content to changing usage. We make sure your new tankless unit is correctly sized and expertly installed for strong performance and longevity.
Our expertise includes:
- Clean integration with existing plumbing and gas lines.
- Correct sizing and model selection for your home.
- Gas line sizing and upsizing for 199,000 BTU tankless units

Additional Plumbing Replacement Services in Minot, ND
When repairs are no longer enough, our replacement services in Minot, ND deliver durable upgrades that restore full performance.

Customers
Why Choose HPN Plumbing for Tankless Water Heater Replacement in Minot, ND?
A tankless heater is only as good as its gas supply and venting. We measure both before we quote, so your new unit fires at full output instead of shutting down on high demand.
- Scale Protection, Every install includes isolation valves so the heat exchanger can be descaled without cutting pipe.
- Clean Venting, We route venting to meet manufacturer clearances from windows, doors and roof edges.
- Energy Savings, Tankless water heaters only heat water when you need it, which can noticeably reduce energy use compared to traditional tank models, a big plus for North Dakota utility bills.
Citywide Coverage
Whether your tankless sits on an exterior wall, in a garage or inside a utility closet, we cover all of Minot with the same scheduling and pricing. Most replacements are booked within a day or two.
Experienced Team
Each technician at HPN Plumbing knows tankless technology, so your replacement is done accurately and efficiently. We focus on details like proper gas line sizing, venting and electrical connections for top performance and safety.
Safety-First Approach
Safety and code compliance come first in every tankless water heater replacement we perform. Our installations follow all North Dakota and local Minot plumbing and gas codes, so your system runs safely and efficiently.
Trusted Certified Minot Plumbing Services Professionals
At HPN Plumbing, we take pride in providing certified plumbing services throughout Minot, ND. Backed by leading industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver long-lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationTrusted Tankless Water Heater Replacement Services in Minot, ND
Recirculation Tankless Upgrades in Minot, ND
If you are tired of running the tap while you wait for hot water, a tankless with a built-in recirculation pump can bring heat to the fixture in seconds. Navien A series and Rinnai units with internal pumps can use a dedicated return line or a crossover valve under the farthest sink. We program schedules so the pump runs only during your morning and evening peaks. That keeps gas use in check while saving thousands of gallons of wasted water a year. This upgrade is popular in long single-story ranch homes.

Tank to Tankless Conversions in Minot, ND
Converting from a 40 or 50 gallon tank to tankless frees up floor space and ends standby heat loss in a garage or closet. The catch is that tankless units usually need a larger gas line, often three quarter inch or bigger, plus new venting. We evaluate your meter size and pipe run before quoting so there are no surprises mid-job. We also cap or reroute the old flue and seal the roof penetration if it is no longer used. Expect a conversion to take a full day.
Like-for-Like Tankless Swaps in Minot
When your existing tankless has a cracked heat exchanger or a failed control board that is not worth repairing, a direct replacement is often the fastest fix. We match the new unit to your current gas line, venting type and mounting location whenever possible. Many Rinnai and Navien models share similar footprints, which keeps wall patching to a minimum. We also replace the old service valves if they are corroded or seized. Most like-for-like swaps are done in four to six hours.
Electric Tankless Water Heater Replacement in Minot, ND
For properties without natural gas access or those looking for an all-electric solution, electric tankless water heaters are a viable choice. HPN Plumbing offers electric tankless water heater replacement services in Minot, ND. This often involves close assessment of your home's electrical panel capacity, as these units require significant amperage. We make sure your new electric tankless unit is installed safely and effectively, providing on-demand hot water without the need for gas lines.
Residential Tankless Water Heater Replacement in Minot
For homeowners in Minot, upgrading to a tankless water heater offers real benefits like endless hot water and reduced energy use. We assess your household's hot water demand to recommend the ideal sized unit, so you get optimal performance. Our team handles everything from safely disconnecting your old unit to installing the new tankless system. That includes all necessary gas and water line adjustments and venting changes to meet current codes.
Navien Tankless Water Heater Replacement in Minot, ND
Navien tankless water heaters are popular for their condensing technology, delivering high efficiency and performance. When it is time for a Navien tankless water heater replacement in Minot, ND, you can count on HPN Plumbing. We have extensive experience with Navien's advanced systems, including their combination boiler and water heater units. Our installation process focuses on optimizing your new Navien's performance, so you benefit from its energy-saving features and reliable hot water output.
Gas Tankless Water Heater Replacement in Minot
Many homes in Minot rely on natural gas for water heating, and gas tankless units are a very efficient option. Our gas tankless water heater replacement service includes careful inspection of your existing gas lines, proper sizing of new gas lines if needed, and secure venting to the outdoors. We put a priority on safety. All gas connections and combustion air requirements meet North Dakota and local codes, heading off potential hazards and maximizing efficiency.

Condensing Tankless Replacement in Minot
Condensing tankless units like the Navien NPE series or Rinnai Sensei reach efficiencies above 90 percent by recovering heat from exhaust gases. They vent through low-cost PVC and produce acidic condensate that must be neutralized and drained properly. We install a neutralizer cartridge and route the condensate line to an approved drain. Strong winds and extreme cold can push frost into walls and crawlspaces, reaching pipes that seem well protected. Condensing units still save gas because they work year-round on showers, laundry and dishes. We explain the cost difference so you can decide if the efficiency gain is worth the price.
Tankless Water Heater Replacement Near Me in Minot, ND
If you are searching for tankless water heater replacement near me, you want a local plumber who understands North Dakota water and gas codes. HPN Plumbing serves Minot with trucks loaded for tankless installs. We can often give you a firm quote after a short phone call and a few photos.
Looking for tankless water heater replacement near me in Minot, ND? HPN Plumbing is your local pro, providing prompt and professional service across the entire area. Our team is located to respond quickly to your hot water needs, with efficient service right to your doorstep.
HPN Plumbing at a Glance
- Licensed and insured plumbers serving Minot, ND
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.9-star rated by 408+ North Dakota customers
Minot Map
Minot Information
- Population
- 47,373
- Area codes
- 701/406/320
- Service area
- Minot and communities within 40 miles
- Nearby
- Minot AFB, Watford City, Mandan, Bismarck
Replacing an old tankless water heater in Minot, ND is essential for a reliable hot water supply, especially with shifting seasonal demands and mineral content that can affect unit efficiency and lifespan.
Expert Services
Trust our professionals for reliable HPN Plumbing solutions in Minot, ND.
Our Specialized Plumbing Services in Minot, ND
At HPN Plumbing, we provide a complete range of plumbing services across Minot, ND. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Tankless Water Heater Replacement Process Works in Minot, ND
We follow a proven method for every tankless water heater replacement in Minot, from initial assessment to final testing, for a quality installation.
Request a Quote
Call (701) 403-1348 with your current model number and a photo of the install. We give you a ballpark price and schedule a visit.
Size and Inspect
Our tech measures gas line size, meter capacity, venting path and water hardness. We recommend a unit that matches your hot water demand.
Install and Test
We remove the old heater, install the new one with service valves and venting, then test gas pressure and combustion. You get a walkthrough on settings and flushing.
Frequently Asked Questions About Tankless Water Heater Replacement in Minot
A like-for-like gas tankless replacement typically runs $2,800 to $4,500 installed, depending on the brand and venting. Converting from a tank to tankless often costs $4,000 to $6,500 because of gas line and venting upgrades. We give you a written quote before any work starts.
Frequent error codes, fluctuating temperature, water leaking from inside the cabinet and a unit older than 15 years are common signs. If the heat exchanger is leaking, replacement is usually the better value.
New tankless water heaters usually come with a manufacturer's warranty, which usually covers the heat exchanger for 10 to 15 years and parts for 3 to 5 years. HPN Plumbing also provides a labor warranty on our installation work for your peace of mind. We will discuss warranty details for your chosen unit during your consultation.
DIY tankless water heater replacement is usually not recommended due to the complexity of gas lines, high-voltage electricity, water connections and venting requirements. Improper installation can lead to serious gas leaks, carbon monoxide poisoning, water damage or electrical hazards. It is best to hire a licensed and experienced plumber like HPN Plumbing.
HPN Plumbing installs and replaces all major trusted brands of tankless water heaters. Our preferred brands include Rinnai, Navien, Noritz and Rheem, as they are known for their reliability, energy efficiency and long-term performance. We can also order and install other brands based on your preference or home requirements.
Often yes, especially when converting from a tank. Many tankless units need three quarter inch gas pipe and a meter that can handle 199,000 BTU on top of your furnace, range and dryer.
Yes. Softened or scale-treated water sharply reduces mineral buildup in the heat exchanger. We can install a scale-reduction filter if a full softener is not in your plans.
We install Navien, Rinnai, Noritz, Takagi and Rheem tankless heaters. Each has its own strengths, and we recommend based on your flow needs, venting options and budget.
What People Are Saying About Our Plumbing Experts?

Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Williston, ND
James P.
Our commercial plumbing system had a leak under the sink, and HPN Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Williston, ND
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Minot AFB, ND
Mark T.
When our office needed drain cleaning, HPN Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Watford City, ND
Emily R.
I called HPN Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · Minot, ND
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Watford City, ND













