Tankless Gas

 Choosing the perfect Tankless Water Heater

 Choosing your own?  Here’s what you need to know:

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Average rating for Tankless Gas
(4.1 / 5)
412 Reviews
  1. 5 years ago
    ease of controling the water heater
    The tankless water heater can be adjusted for each use. The instalation went smothly, with no problems.We love the hot water heater. Thanks
  2. 3 years ago
    these work great but...
    they require a 3/4 gasline to work properly! most tank whs only have 1/2 ran to them,therefor check your gasline b-4 purchase.
  3. 5 years ago
    We love it!
    Tired of replacing water heaters every 6 years so decided to try the tankles...Delivery was on time..the hookup was a little tricky only because of where our lines were b4..but husband has experiance and was easy for him to hook up...loveall the hot water!!!
  1. 2 months ago
    Very Happy
    Very fast shipping the heater. Very straight forward installation, I liked very much that I didn't need special venting and was able to use 3 inch PVC. It cleared up extra space in my utility room and looks much nicer than the big bulky tank heater too. It doesn't seem to heat the water enough when running the tub or shower, even with the temp turned up, which is strange because the temp stays the same with both tubs are running.
  2. 4 months ago
    Great Product & Great Customer Service
    Received the product promptly. The front cover of the unit had a couple dents from shipping & handling. I contacted Home Depot online & they did not hesitate to offer me a gift card & order me a new cover at no charge. The product itself was easy to install for a dedicated DIYer. If your skills are lacking this would be a massive undertaking. Even for an experienced DIYer this was a big project amongst work & family. the water heater performs as expected! No more timing the kids for showers ... read more around the dishwasher, clothes washer, or eachother. No more waiting for more water to heat up, & this unit allows two showers, & a clothes washer to be running at the same time. If you have the money & the know how, this baby is a no brainer! Way more energy efficient as well.
  3. 1 year ago
    Good Product
    Be aware that it could be noisy when the burner is on. It will depend on where it is installed. In my case it was installed on an interior wall and could hear the burner running when the hot water is turned on in the adjacent room. Also, disregard what Home Depot people online or in the store tells you that it will work with 1/2" gas supply line. I was told the heater will work though less efficient. Not true, water heater will go off with error message. I had to run a dedicated 3/4" gas line ... read more from the meter for it to work. Be aware this is a condensating water heater....so you will need to collect the condensate or have a place for it to drain.
  1. 4 years ago
    awsome water heater!
    had to relocate the water heater do to the new tankless heater requiring a 2 layer stainless exaust/fresh air intake line (which is very expensive). but the remote water temp. controller and the constant water temp./pressure compared to our last tankless more than makes up for the added install cost. As far as savings over a tank water heater we're paying 1/3 the monthly gas bill and can take multiple long showers without the water temp. dropping
  2. 4 years ago
    great features, even better savings
    had no problem with the install. I also purchased the install kit that was recommended by the store associate at the same time I bought the heater. Glad I did. It made the install so much easier. I put a little dab of silicone grease on the O-ring to help keep it in place. I am enjoying PLENTY of hot water along with a lower gas bill!!!
  3. 5 years ago
    It delivers plenty of hot water.
    After doing some research on flow rates, different water heaters, etc., we installed this unit in our pool house with a shower and two sinks with the furthest one being no more than twenty feet away from the unit. It's easy to install if you have the knowledge and it delivers plenty of continuous hot water to each faucet., plus the safety features work. It's on the pricey side but I recommend it.
  1. 5 years ago
    great Water Heater
    What's great about it: good price! What's not so great: Vent Kit are price is high
  2. 5 years ago
    Product is easy to use and compact.
    The venting is the toughest part of installation. Be sure to pick the placement based on this rather than the plumbing. Adding piping was much easier than trying to fit the vent where it wouldn't go. Also research how to turn up the temp past 120 degrees. It is slightly complicated if you are not used to working with circuit boards.
  3. 6 years ago
    rheem eco sense model eco150dvp3
    excellent product.perfect fit for a 2 to 3 person home with one bathroom where morning time is important.in a home with a larger family and time is not critical it would be hard to beat you can,in a larger family add a smaller unit dedicated to the kitchen and have a 5 star winning combination at a very low cost and relevant investment return that is easily noticed monthly
  1. 5 years ago
    So far so good.
    Can easily control temp. so kids don't get burned. Saves a lot of space since it's outside. Since I live outside city limits, I use a portable large propane tank to feed this unit. The directions don't cover any installation like this so took a little time to figure that out.
  2. 4 years ago
    hot water makes me happy
    this was a great buy , easy to install , works great.. had to purchase a descaler/sediment filter because i use a well water source.
  3. 5 years ago
    This product works better than expected
    Instalation seemed complicated at first but was very simple.Make sure atleast 3/4 piping is ran from the propane tank to the unit and it will work very well.
  1. 1 year ago
    Instant Gas Heater
    Plumber and Gas installers had no problem installing the device and it was up and running within 45 minutes. Works wonderfully well, and the water is hot. Would definitely recommend.
  2. 11 months ago
    Great product, TERRIBLE customer service :(
    Great product, we have several of these in our cabins. Fairly easy to install if you have electrical / plumbing skills. These work great, hold up to our cold winters here in NW NC.
  3. 3 months ago
    Best customer service ever
    The best part of purchasing this product was the help that I received from Andres at the store on US1 and 32nd Ave. He found exactly what I needed and wrote up the order. It was interesting that while he was writing up the order a man came into the store specifically to thank Andres for the help he had given him with some gardening issues. Obviously this young man is a real asset to your store.
  1. 4 years ago
    Works nice
    My first experience with a tankless water heater. This unit works nice, no issues. Unfortunately it just got damaged by a lightning strike.
  2. 4 years ago
    This is an EXCELLENT Product
    I have been researching Tankless Water Heaters since they first came onto the market. I did not purchase one until I read the specifications on this model, and I was immediately sold. I knew from the very beginning that this product would be difficult to install because of the plumbing involved. I hate plumbing because it requires so many skills to do it. I prefer electronics, but have the skill for doing the necessary plumbing for the installation of this product. The notes on the box were to ... read more say the least just a little scary because they want to make sure that everything should be right before you even open the box to start the install. You tend to get the feeling that you might have purchased a boat anchor if you do not understand the requirements of the product. Otherwise you should hire a professional plumber before you even purchase it. Read the Installation and Owners manual before you purchase this product, and make sure that you understand the installation and requirements if you are going to install it yourself, because the level of difficulty is extreme if you have no experience. I got the product installed, and the natural gas connected. It took a few seconds for the unit to power up, which was a little unsetteling at first, but when it did I was very pleased and impressed with its performance. The reason that I purchased this particular model was the fact that the flow rate to activate the burner was .4gpm which is extremely low. All previous models that I researched were beyond the rate my plumbing would provide. It was also great to vent because it only requires 2 1/2 to 3 inch PVC pipe which can be run out the side of the enclosure and not through the roof. You do have to provide a plastic hose to run into a sewer drain for the condensate because of its acidic properties. The unit activates easily, and is so sensitive that if you turn a faucet on for a second, the unit sees the flow, and powers up the burner. The hot water provided is consistent in temperature, and there is very little depletion in flow if you are running the hot water in a sink, and the washing machene kicks on to fill with hot water. The water stays at the set temp. I would recommend purchasing the next size up of this model if you have a large residence or use tremendous amounts of hot water at the same time as a large family would require. I also added a Uninteruptable Power Supply on the 110v supply because this unit is full of electronics, and I do not want the power company power to cause the circuit board to fry requiring a professional to come and replace it. Also I am going to add an electronic water softner on the cold water input side to eliminate slime and scale from the city water to foul the equipment. All in all, I HIGHLY RECOMMEND purchasing this product because from its performance over the last week since I finished installing it have been truly satisfying.
  3. 4 years ago
    Love it
    So much better than having a water tank that you have to pay to keep the water hot all the time. This is a good investment.
  1. 3 years ago
    Great value for price
    This is a great water heater. I have 3 bathrooms and someone in each can shower without running low on hot water. My contractor had trouble locating the vent pipe but the installation went smoothly.
  2. 2 years ago
    Best tankless water heater
    I replace another tankless water heater that was creating problems and seemed unfixable. So far my new Rheem has worked perfectly and I anticipate it will continue to do so.
  3. 4 weeks ago
    rheem great!
    I use to pre heat maple syrup before going into cooker, works GREAT!
  • 2016-06-25
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