Since their inception, tankless water heaters have become sought-after household accessories by thousands worldwide for several reasons. Unlike their bulky tanked counterparts that require a lot of space to install, they are space-efficient and thus, recommended for use in homes and commercial offices. They are also power efficient, have advanced tankless units that generate an unlimited amount of hot water on demand and have energy efficient systems that also lower water wastage and have a minimal environmental impact than their tanked counterparts do. If you are renovating your plumbing system and a tankless water heater ranks highest on your list of wants, our picks of the top 10 best tankless gas water heaters include:
10. Noritz NRC661-DV-NG
Designed for indoor usage, Noritz NRC661-DV-NG is a high-performance 6.6gpm tankless water system that uses natural gas to heat water. Its compact condensing direct design is innovative. It is easy to install, generates a steady flow of hot water without costing users a fortune, and has an advanced vented design with scheduled fitting and 40 PVC piping. If power consumption is a challenge, Noritz NRC661-DV-NG is cheap. Its simple design is low-maintenance, while its low Nox system minimizes the environmental pollution witnessed when using tanked water heaters. With an original, you will enjoy hot water on demand with spending a lot of money.
9. Takagi T-D2-IN-NG
An acclaimed product in stores, Takagi T-D2-IN-NG is powerful 199.000 BTU natural gas water heater with a compact and easy to install design that works well indoors. It is powerful, generates an impressive 10.0 GPM maximum flow rate, and a well-built category III 4-inch stainless steel venting that boosts its functionality significantly. You also get outlet thermistors that guarantee constant temperature monitoring, a heavy-duty design perfect for light and commercial application, an advanced Energy Star-rated construction that lowers power expenditure, and a TM-RE30 remote control that eases customization and operation once well installed.
8. Takagi T-KJr2-OS-NG
Do you have an outdoor shower that you use often? Are you on the market for a powerful gas tankless water heater that you can use on an everyday basis? If you have a few dollars to spend and want the best, Takagi T-KJr2-OS-NG is a natural gas-powered model that offers users value. It is durable, tankless, and has an easy-install compact design that withstands daily abuse. It also has an impressive 0.82 energy factor, a high 6.6 GPM maximum flow rate, and an advanced 19,500-140,000 BTU system with internal freeze protection.
7. Rinnai RL94EN
Featuring an advanced tankless system that generates up to 9.4 gallons per minute at full capacity, Rinnai RL94EN is a premium-grade gas tankless water heater that works well in homes and offices. It is durable, space-efficient, and has an aesthetic silver-themed construction that resists rust and corrosion. Rinnai RL94EN spawns 9,900-199,000 BTU. It has an advanced digital controlled with a built-in error code indicator, a Rinnai Circ-Logic re-circulation program that maximizes efficiency and comfort, and a thermally efficient (up to 83%) Energy Star-rated construction that is perfect for both residential (98-140F) and commercial (98-185F) usage.
6. Takagi T-H3-DV-N
As the Takagi T-KJr2-OS-NG reviewed herein, Takagi T-H3-DV-N is a high-efficiency natural gas tankless heater with a compact indoor design that serves users well for years. It is power-efficient, has an advanced condensing system that generates up to 10 gallons of hot water per minute, and has a compact and space-efficient design that delivers an endless supply of hot water on demand. Takagi T-H3-DV-N has a plethora of safety features that boost its suitability for home use. It is also affordable, satisfies the set 2012 SCAQMD Rule 1146.2 for ultra-low Nox emissions, and generates an endless supply of hot water in your home while protecting the environment.
5. Rheem RTG20124 Flush Kit
Ranked among the best in its class, this Rheem RTG20124 flash kit for the tankless water heater is a valuable household accessory that also works well in offices and other commercial environments. Even though cheap, it is powerful, easy to install, and functional safety features including circuit breakers. It is also easy to maintain, is relatively easy to install and use, and withstands everyday use for years.
4. Rheem RTG-84XLN
Popular among the top 10 best tankless gas water heaters reviews 2016, Rheem RTG-84XLN is a high-performance 8.4 GPM system that uses natural gas to warm water. It is affordable, recommended for use outdoors, and has an environmentally friendly low Nox design that ranks it among the best models for everyday usage. As most models reviewed herein, it is also space-efficient, has an industry leading burner technology that lowers gas consumption, and comes with a multi-functional UMC-117 remote control that eases customization and everyday usage. Purchase an original model and install is as needed to enjoy a memorable experience.
3. Rheem RTG-64XLN
For those with small to medium-size homes and want durable or high-performance tankless water heaters for generating hot water for bath or cleaning, Rheem RTG-64XLN is an invaluable 6.4 GPM outdoor model that uses natural gas. It has a Low Nox rating, has a durable yet space-efficient construction, and comes with 10-feet of thermostat wires that ease installation and usage in all environments. Rheem RTG-64XLN is energy-efficient, affordable, and recommended for everyday usage.
2. Rinnai RL94iN
Have you experimented with several types of tankless water heaters with poor results? If you live in a cold area and like to take hot showers when preparing for work and in the evenings, Rinnai RL94iN might be the best product for you. It is durable, powered using natural gas, and has an advanced system that generates up to 9.4 GPM. Its 9,900-199,000 BTU system is powerful yet space efficient, while its silver-themed finish is aesthetic and prevents rust and corrosion when exposed to water and other environmental elements. Other desirable attributes are its high thermal efficiency (83%), advanced digital controller, and its error code indicator.
1. Takagi T-KJr2-IN-NG
Top on our list, Takagi T-KJr2-IN-NG is a powerful 140,000 BTU indoor tankless water heater that draws its power from natural gas. It is durable, has a well-designed system with a 6.6GPM maximum flow rate, and an impressive 0.81-0.83 energy factor. You also get outlet thermistors for monitoring temperature, a compact build that is perfect for residential use, and a double-walled stainless steel vent.