Tankless water heaters reviews here will explain how these devices work, what are best implementations, which types and models you can find and why use them.
You’ll also find more detailed reviews of various models at the bottom of this page…
Tankless hot water heaters are the newest craze in home appliances.
These devices replace traditional electric or gas water heaters and take up half of the size. Unlike traditional models, tankless heaters do not have the bulky storage tank.
With these water heaters, users do not need to wait for the water to heat up and become hot. Instant hot water heaters save energy, are compact, and efficient. With tankless hot water heaters, hot water is distributed throughout the home when in demand.
How Tankless Hot Water Heaters Work
Unlike other hot water heaters that use excessive energy, tankless models only heat the water you demand. There are both electric and gas tankless water heaters, but they work in the same fashion.
When hot water is requested from an appliance, cold water flows through a pipe, where it is heated by a gas burner or electric coil, and directed to the appliance. The best part about these heaters is that you will never run out of hot water! As soon as you turn the valve off, the heater stops heating the water. You conserve energy and water simultaneously.
While models vary, tankless hot water heaters provide two to five gallons per minute. Gas-driven models are stronger and have a greater output capacity in terms of gallons per minute, however; electric models are still a worthy investment.
In larger households you may require multiple tankless hot water heaters. Using the dishwasher while taking a bath could be stretching the limits of a typical tankless unit.
Tankless water heaters are designed for smaller households, such as apartments and townhomes. A tankless heater can only energize so much water at once – if your home has multiple appliances that require simultaneous hot water, you may need to purchase a “Whole House” tankless model.
These are powerful devices that can alleviate such problems. However, these units are costly and you are better off buying a traditional hot water heater.
If you are worried about not having enough hot water, consider installing multiple tankless hot water heaters in the dwelling. Dedicate one tankless unit with the washing machine and dishwasher. Install the second heater for all of your other appliances.
This will ensure you always have hot water when you go to bathe. Additionally, these heaters will circulate water to the appliances faster than traditional models.
Consumer tankless water heaters reviews show that people use them to power their pools, backyard kitchen, and remote bathrooms. These devices are ideal for guest cottages, poolhouses, and sheds. Why fuss with the piping to try and connect it to your existing heater?
Installing a tankless hot water heater will be more economical and efficient. Additionally, tankless heaters have been used to boost current hot water coverage.
Models and Variations
There are two types of tankless hot water heaters: gas and electric. Choosing the type of tankless heater will depend on your dwelling’s connectivity, existing fixtures, and regional availability.
Electrical tankless heaters are ideal for areas that do not have gas hookups, such as in a bathroom. These heaters come in 110V, 120V, 208V, 220V, 240V, and 277V, however; always check with your utility company to ensure compatibility.
All electric tankless hot water heaters require different amp draws, however; ensure your current infrastructure can support the demands of your heater. Generally, these appliances should be placed on their own circuit breaker, however; always consult a licensed contractor before doing the work yourself. Without the proper licensure, you can cause serious injury to yourself and your property. If you are renting, contact your landlord for authorization before installing a hot water heater.
Gas-powered tankless water heaters are more powerful than their electric counterparts and offer additional water pressure. Requirements vary by model, however; you should have an existing gas line connection for the device. If you are installing a dedicated gas line, ensure your utility company provides the right connectors for your water heater.
Category III stainless steel ventilation is required by law. Make sure your venting is UL1738 certified; it is best to consult with a licensed contractor who is familiar with such regulations. While pre-made kits do exist, these do not meet the needs of most consumers.
Tankless water heaters have different applications, including single application, multipoint application, or whole house application. Each fixture in your dwelling requires a certain amount of hot water, thus it is essential that your tankless heater can meet these demands.
Devices use different amounts of water, toilets use 0.5 gpm, bathtubs use 2.0-4.0 gpm, showers use 1.5-3.0 gpm, kitchen sinks use 1.0-1.5 gpm, laundry machines use 2.5-3.0 gpm, and dishwashers use 1.0-3.0 gpm. Look for models with the highest gpm output, as this will ensure your devices will function properly and without coldwater spells.
Benefits of Using Tankless Water Heaters
Instantaneous (tankless) hot water heaters offer many advantages over their energy-eating siblings. Tankless heaters are more compact in size, save energy, are environmentally friendly, and are easy to install. Since the heater does not store a tank of water, the overall size of the appliance is significantly smaller.
These heaters conserve water since they operate on demand. Since the water is heated based on user input, you aren’t paying for unused hot water. Additionally, tankless heaters offer unlimited hot water. The days of getting the “cold awakening” from the shower is over. Electric models cost more to operate than gas, but this can be true of almost any appliance.
Additionally, tankless equipment tends to outlive their ancestors, offering a better value in the long run. The more hot water (gpm) that the heater produces, the higher the overall cost will be.
The main benefit of using tankless hot water heaters is their efficiency. These heaters take on a conservative approach by allowing households to use less water daily while not altering their lifestyle.
A house that uses 41 gallons or less can expect to see savings of 24 to 34 percent compared to traditional water heaters. Homes that use a great deal of water (more than 86 gallons per day) will see a savings of 27 to 50 percent when using tankless heaters.
Best Tankless Water Heaters
The Bosch GL2.5 Ariston 2-1/2-Gallon Point-of-Use Indoor Electric Mini-Tank water heater is designed to deliver water on demand to one appliance. The unit supplies up to 2.5 gallons of water at a time and offers standard connectivity to an electrical outlet.
Installation is a breeze because the device is designed with the average homeowner in mind. The unit is designed to work with an existing hot water system and comes in several models, including 2.5, 4, and 6+ gallons and receives high ratings in online tankless water heater reviews.
The heaters are glass-lined, ensuring that you will not lose energy during the heating process, which increases efficiency. The thermostat on the device can be easily set and changed as needed. Since there are no gas lines or special fixtures, the Bosch is perfect for the garage, backyard, or poolhouse.
Pros and Cons of Tankless Water Heaters
- Energy efficient: Only heats the water when an appliance needs it.
- Always On: Never wait for hot water again, as there are no tanks to fill!
- Compact: Tankless heaters can fit in tiny spaces such as apartment closets.
- Pressure: Models are limited to the number of gallons they can heat per minute.
- Price: Whole home application models are pricier than traditional water heaters.
Hot water is one of the essentials in your daily life. You may not even like to think of what would happen on a day when you turn on the shower faucet to hot, but there is no hot water coming. So, if you are throwing out your old water heater, and excited at the prospect of getting home a new one, it’s time you considered buying a whole-house tankless water heater. These units offer you lower operating costs and many years of constant hot water supply. With traditional tank water heaters, you tend to pay more on your electricity bills,...read more
Paloma tankless water heaters are made only as inline, on demand water heaters that are 33% more efficient and energy saving that other tank style water heaters. Paloma’s top digital line of products are made to pass the strictest emissions standards in the nation. One example is that their products meet the strict standards of the South Coast Air Quality Management District of California. Because Paloma tankless hot water heaters don’t have tanks, there is no mineral deposit build up in the unit, and the materials used are of the...read more
Takagi tankless water heaters provide endless hot water, peace of mind, quality, and low emissions all in one package. Takagi hot water heaters also have one of the highest thermal efficiency rating in the industry, a whopping 92% with natural gas, and 95% with propane. With 15 years on the American market, and over fifty in Japan, Takagi in a leader in the industry. With direct venting that uses PVC instead of metal, and a zero clearance rating, you can put one of these units just about anywhere. With the advanced T-K3, you can also link up...read more
Rheem tankless water heaters should be your top choice if you need a high quality fuel efficient and high capacity, gas tankless water heater. For one thing, Rheem has a water heater for just about any application you can think up. They can be used in residential situations, either as a whole home heater, installed as the construction is going on, or while you are putting a new addition on. Rheem tankless water heaters can be found in many vacation homes, even with altitudes that are up to and even over 9,000 feet, where the water table...read more
A Titan tankless water heater will suit your needs best if you live in warmer climate, where the groundwater is above 60 degrees on a regular basis. While Titan company has only been in business for a relatively short amount of time, since 1986, it has proven itself to be a leader in the field of water heater technology. Titan tankless water heaters are found in apartments, homes, and businesses here and abroad. The Florida International University has their tankless heaters installed, as well as many hotels, including the Holiday Inn, Plaza...read more
A Bosch tankless water heater is the right choice if you’re looking for quality and versatility. For one thing, while many brands make gas hot water heaters, Bosch make both gas, and electric models. Bosch tankless water heaters systems are also not only of the highest quality, but are also one of the least expensive brands on the market. But just because they cost less, doesn’t mean they are inferior to other brands, in fact, in many cases the opposite is true. While many brands offer energy saving up to around 40%, Bosch’s...read more
Noritz tankless water heaters have been in the top ten brands of water heating for a number of years and it is easy to see why. Noritz offers outstanding service, the latest in technologies, and customer satisfaction, and they have grown by leaps and bounds. Not only do the provide quality products that will give you years of use, but the Noritz tankless hot water heaters are made with the planet in mind. For one, Noritz has the largest selection of tankless, or inline hot water heaters that have some of the highest EnergyStar ratings...read more
Rinnai tankless water heaters are one of the leaders in the water heating industry. They specialize in gas units, and these units are designed with the latest in heater technology. A Rinnai gas fired inline water heater can save you over 30% on your energy bills. They are compact, use a standard electrical outlet for the electronics, and all models have a high energy factor rating as well as thermal efficiency. There are many different models to choose from, but every Rinnai tankless water heater comes with these standard features. Endless hot...read more
The main reason why it’s a good idea to choose a gas tankless water heater is that natural gas, and propane are one of the most abundant natural resources in our country. It is far cleaner burning than many of the ways that electricity is produced, and heats up faster than electric tankless water heaters. This means the recovery and the heat rise in water tanks is much higher than electric models. Unless you are using some kind of alternative power source, like solar or wind, this is the smartest way to go. How are gas tankless water...read more
Why use electric tankless water heaters? One of the biggest wasters of electricity is your hot water heater. Regular tank style water heaters, no matter how energy efficient, are a big waste of electricity. Why you may ask? Because they still use an outdated way of heating water. With a tank heater, the water in the tank has to be kept at a constant temperature, even if it is not in use. Every time the temperature drops below a certain point, the power turns on in order to heat the water back up. If you want a truly fuel efficient way to heat...read more