Tankless Water Heaters Company: About 12 Cents per Hour Running Cost
On this page 7 sections
- What Tankless Water Heaters Companies Offer
- How Installation Costs and Local Codes Affect Your Choice
- Maintenance Requirements for Tankless Water Heaters
- How to Choose the Right Tankless Water Heater for Your Household
- How Operating Costs Compare Between Tank and Tankless Models
- What Does a Tankless Water Heaters Company Offer?
- More Questions, Answered
Choosing a tankless water heater involves more than picking a unit off the shelf. The company you work with affects your installation quality, warranty service, and long-term satisfaction.
Getting this wrong can cost you more upfront, cause comfort issues, or lead to costly repairs down the line. Knowing what to expect from a tankless water heaters company helps you avoid these pitfalls.
What Tankless Water Heaters Companies Offer
A tankless water heaters company designs, sells, and supports systems that heat water on demand without using a storage tank. These companies offer gas and electric models, including condensing and non-condensing types, alongside installation and ongoing support to fit your home’s hot water needs efficiently.
Companies in this space provide a variety of products. Gas-fired tankless water heaters often come with higher BTU ratings and can serve larger households, while electric models are simpler to install and better for smaller homes or point-of-use needs. Condensing units reclaim heat from exhaust gases, pushing efficiency above 90%, whereas non-condensing models have lower upfront costs but reduced thermal efficiency.
Installation services are generally part of the package or offered via authorized contractors. This includes sizing the system, running gas or electric lines, and setting up venting or electric connections. After installation, these companies usually provide warranties that range from 5 to 15 years on heat exchangers and parts, plus customer service for troubleshooting and maintenance advice.
Warranty and support matter because tankless water heaters rely on components like heat exchangers and modulating burners that can be costly to repair or replace. Good companies stand behind their products and offer tech support, replacement parts, and sometimes extended service plans.
| Company | Specialty | Notable Feature |
|---|---|---|
| Rinnai | Gas tankless | 15-year heat exchanger warranty, Smart-Circ™ recirculation pump |
| Navien | Condensing gas units | Stainless steel heat exchangers, high thermal efficiency |
| Rheem | Gas and electric | U.S.-based customer service, wide range of sizes |
| Bradford White | Whole-home and point-of-use | Known for durable commercial-grade models |
| Girard | RV and camper use | Compact design, multiple temperature settings |
If you ask which USA company makes the best tankless water heaters, names like Rinnai and Rheem often come up for their combination of reliability, warranty, and customer support. Navien leads in condensing technology, boosting efficiency and lowering operating costs. The choice depends on your needs, but these companies consistently rank high for quality and service.
How Installation Costs and Local Codes Affect Your Choice
Installation costs for tankless water heaters typically range from $1,000 to $3,000, depending on the unit type, fuel source, and complexity of venting or electrical upgrades. Gas models usually cost more to install than electric ones due to venting and gas line work.
What local codes or permits are needed for installation? Most areas require a permit for plumbing and gas work, and inspections ensure the installation meets safety and building codes. These include proper venting clearances, combustion air supply, and sometimes seismic strapping in earthquake zones.
Gas tankless units need specialized venting materials rated for high temperature exhaust, often stainless steel or special PVC piping for condensing models. Electric units avoid venting but may require upgraded electrical circuits or panels to handle the 20 to 40 amp draw.
Climate impacts installation choices. In cold regions, vent pipes must be insulated or routed to prevent freezing. Freeze protection features or recirculation pumps may be necessary to keep water moving and prevent damage in unheated spaces.
Maintenance Requirements for Tankless Water Heaters
Tankless water heaters need regular maintenance, especially descaling and filter cleaning, to keep running well and extend their lifespan. Hard water causes mineral buildup inside the heat exchanger, reducing efficiency and risking damage over time.
How often you maintain your tankless heater depends on water hardness, but a common rule is to descale and clean filters once a year. More frequent service may be needed where water is very hard or if you notice performance issues.
You can usually spot overdue maintenance if your hot water flow drops, the heater cycles on and off frequently, or the burner flames look irregular. These signs mean scale is blocking water or fuel flow.
Water Heater Owner's ToolkitFix the common faults yourself, keep it running for years, and know when a repair is money wasted.No-hot-water flowcharts, gas and electricFlush, anode, relief valve and descaling stepsRepair-or-replace calculator (Excel)How to Choose the Right Tankless Water Heater for Your Household
Not all tankless water heaters fit every home size or hot water demand. Matching the model to your household starts with figuring out your peak gallons per minute (GPM) needs—the combined flow rate of faucets and appliances running at once.
Large households typically need units rated for at least 7 to 10 GPM, while smaller homes may get by with 3 to 5 GPM models. Whole-home systems cover every outlet, whereas point-of-use units serve individual bathrooms or kitchens.
| Household Size | GPM Needed | Suitable System Type |
|---|---|---|
| 1–2 people | 3–5 | Point-of-use or small whole-home |
| 3–5 people | 6–9 | Standard whole-home |
| 6 or more people | 10+ | High-capacity whole-home or multiple units |
Condensing models capture heat from exhaust gases to reach thermal efficiencies over 90%, often qualifying for ENERGY STAR® ratings. Non-condensing models cost less upfront but run at around 80% efficiency and require different venting.
Smart home integration features let you monitor and control your heater remotely, adjust temperatures, and manage energy use. Some models include recirculation pumps to reduce wait time for hot water at distant taps, improving comfort and saving water.
How Operating Costs Compare Between Tank and Tankless Models
Tankless water heaters often save energy compared to traditional tanks, but the actual savings depend on your household’s hot water use and fuel costs.
A typical tank heater holds 40 gallons and keeps it hot 24/7, using about 4,500 watts or 15,300 BTU daily just to maintain temperature. A tankless model heats water only when needed, cutting standby losses. For instance, a 1,500 W electric tankless running 1 hour daily uses 1.5 kWh, compared to a tank drawing 4.5 kWh daily. At 17¢ per kWh, that’s about 25¢ versus 77¢ per day.
Fuel type shifts the math. Gas tankless units with a high Uniform Energy Factor (UEF) around 0.9 to 0.95 use fuel more efficiently than older tanks with UEFs near 0.6, reducing burn rates and bills. However, natural gas and propane prices vary by region, influencing savings. Electric tankless models avoid combustion but run on pricier electricity, so their advantage depends on local rates.
Maintenance costs factor in, too. Tankless models need annual descaling and filter cleaning to prevent scale damage that cuts efficiency. These small upkeep costs add up but prolong lifespan, often twice that of tanks. Tanks require less frequent but more involved servicing.
Rebates and financing can improve payback. Many utilities offer rebates for ENERGY STAR® tankless units, lowering upfront costs. Low-interest loans or payment plans through manufacturers and contractors help spread expenses, making tankless more accessible.
| Heater Type | Energy Use | Daily Cost at 17¢/kWh |
|---|---|---|
| Electric Tank Heater | 4.5 kWh | 0.77 cents |
| Electric Tankless (1 hr use) | 1.5 kWh | 0.25 cents |
| Gas Tank Heater (UEF 0.6) | ~30,000 BTU | Varies |
| Gas Tankless (UEF 0.95) | ~19,000 BTU | Varies |
What Does a Tankless Water Heaters Company Offer?
A tankless water heaters company may manufacture units, sell them, install them, or provide service; the phrase doesn’t identify one specific company. Before you choose a provider, check whether it handles the whole job or only sells the heater.
For a replacement, ask who will size the unit for your peak hot-water demand, obtain permits, and handle fuel, venting, or electrical changes. Get the proposed model and installation scope in writing. A manufacturer’s warranty may require installation by a qualified professional and routine maintenance, so check those terms before buying.
There isn’t one best company for every home. Compare manufacturers by the unit’s flow rate at your incoming water temperature, available fuel, venting requirements, warranty terms, and access to local service. Compare installers by licensing, permit handling, written quotes, and experience with that specific model. The largest tankless water heater companies aren’t automatically the right choice if you can’t get prompt local service.
