Gas Tankless Water Heater Reviews

Gas tankless water heaters provide a strong challenge to both gas tank water heaters and electric tankless models. When you consider the substantial savings that electric tankless heaters can produce, imagine how much will be saved when a gas tankless heater is installed and only lower-cost gas is used to heat water on demand.

Heating water suddenly takes only a miniscule slice of your monthly energy bill, not ¼, as some tank heaters do.

A couple of caveats to those who are considering a gas tankless heater: be sure that you have the proper gas line running into your residence to connect with these heaters (a ¾” line is often needed) and find out if you can install it yourself or if you will need help.

Installation of large tankless gas heaters can run into four figures and beyond, sometimes nullifying your total savings over time. So fill out this form if you need your water heater installed, you’ll get up to four free installation quotes.

The advantages of gas tankless heaters are obvious: good-bye pilot light issues and gas usage to heat water while you sleep. Hello to tax credits and rebates from your local gas company, too, twin benefits that can help to cover the cost of installation.

Gas Tankless Water Heater Reviews – High to low Ratings

Rinnai RL75iN

Rinnai RL75iN Natural Gas Tankless Water Heater

Rating: (4.6 out of 5 stars)
If you’re lucky enough to live in areas where there is natural gas, then purchasing the Rinnai RL75iN Natural Gas Tankless Water Heater is your best option. This water heater is suited for use in two to three bathroom homes, and delivers up to … [ more ]
Brand:Rinnai
Size:7.5 GPM
Price Indication:
$850 – $950

Noritz NRC111-DV NG

Noritz NRC111-DV NG Condensing Tankless 8.4 GPM Natural Gas Water Heater

Rating: (4.3 out of 5 stars)
This indoor only whole house model activates at a low 0.05 GPM and at 105oF, is capable of delivering 10.6 GPM during summer with a 70oF ground temperature, and 6.2 GPM during the winter with a 45oF ground temperature. Taking two showers simultaneously or even… [ more ]
Brand:Noritz
Size:8.4 GPM
Price Indication:
$1500 – $1700

Rheem RTG-64DVN

Rheem RTG-64DVN Direct Vent Indoor Series Natural Gas 6.4 GPM Tankless Water Heater

Rating: (4.3 out of 5 stars)
The Rheem RTG-64DVN Tankless Gas Water Heater belongs to the same series as the RTG-95DVN; the only difference being that this particular unit delivers lower volume at 6.4 gallons per minute (GPM). This indoor high altitude compliant water heater supplies … [ more ]
Brand:Rheem
Size:6.4 GPM
Price Indication:
$650 – $700

Rinnai RL94iN

Rinnai RL94iN Natural Gas Tankless Water Heater, 9.4 Gallons Per Minute

Rating: (4.2 out of 5 stars)
Using natural gas as the power source of your water heater is the least expensive way to go; make the heater a tankless and you’ve got a power combination in savings. So, if you’re in areas with natural gas, try the Rinnai … [ more ]
Brand:Rinnai
Size:9.4 GPM
Price Indication:
$950 – $1050

Navien NR-210A

Navien NR-210A Condensing Tankless Water Heater with Pump and Buffer Tank, Natural Gas

Rating: (4.1 out of 5 stars)
New technologies in water heating offer efficiencies that were unheard of decades ago, and an increasing number of manufacturers, like Navien, continue to improve on existing ones. The Navien NR-210A Condensing Tankless Water Heater uses … [ more ]
Brand:Navien
Size:7 GPM
Price Indication:
$1500 – $1700

Eccotemp 40HI-NG

Eccotemp 40HI-NG Indoor Gas Tankless Water Heater, 135,000 British Thermal Unit

Rating: (4.1 out of 5 stars)
Eccotemp tankless water heaters are among the least expensive yet reliable heaters out now. If you have natural gas in your area and would like to shift to a tankless from a conventional storage tank, you may want to try the Eccotemp 40HI-NG Gas Tankless Water Heater that … [ more ]
Brand:Eccotemp
Size:6.3 GPM
Price Indication:
$400 – $450

Rheem RTG-95DVN

Rheem RTG-95DVN Direct Vent Indoor Series 9.5 GPM Natural Gas Tankless Water Heater

Rating: (3.9 out of 5 stars)
With the popularity of oversized tubs and luxury bathrooms the demand for large volumes of water at low cost is increasing. Rheem provides a solution with its RTG Series. The RTG-95DVN Direct Vent Heater provides a stream of hot water continuously while … [ more ]
Brand:Rheem
Size:9.5 GPM
Price Indication:
$900 – $1000

Eccotemp FVI-12-NG

Eccotemp FVI-12-NG High Capacity Gas Tankless Water Heater

Rating: (3.9 out of 5 stars)
Similar to the Eccotemp FVI-12-LP, the FVI-12 NG is an electric high capacity tankless water heater, but it is fueled by natural gas. Likewise, this indoor unit delivers 3.4 gallons per minute of hot water that is sufficient for light to moderate demands … [ more ]
Brand:Eccotemp
Size:3.4 GPM
Price Indication:
$250 – $280

Navien NR-240A

Navien NR-240A (CR-240A) Tankless Hot Water Heater with Circulating Pump and Buffer Tank

Rating: (3.5 out of 5 stars)
Similar to the Navien NR-210A, the NR-240A is a tankless hot water heater that has a built-in circulating pump and buffer tank except that this model delivers 11 gallons per minute at 45oF rise. In colder climates, the unit has a maximum flow rate of 6 GPM … [ more ]
Brand:Navien
Size:7 GPM
Price Indication:
$1500 – $1700