Tankless toilets are so popular today because of their compact, fashionable, and high-tech design. As the name implies, tankless toilets come without a tank. Unlike regular ones that have water in the tanks, no-tank toilets connect directly to the water supply pipes. They use small electric pumps to draw water from the pipes into the bowl.
Their most significant advantage is that they create more space in the bathroom to accommodate other fixtures like tables, shelves, and cabinets. Since they have no tanks, you can install them at any location in the house provided there is a suitable plumbing connection.
If you’re in search of the best tankless toilets out there, we’re here to help with a complete buying guide. We also spent weeks checking some of the top models out there. Go through our findings and make an informed buying decision.
Why Trust Us
Toiletsguide is a productive platform for a group of dynamic plumbing engineers, interior design artists, industry analysts, and bathroom fixture researchers. We’ve launched the website as part of our bathroomware development projects and research.
We possess the right skill and knowledge required to recommend fixtures and fittings appropriate for the household plumbing systems and interior design.
We have a well-designed research framework that focuses on operational efficiency, less water wastage and value for money. We scrutinize every aspect and parts of the fixtures we review to make sure they pass through our standards. Our recommendations can change over time as newer products with competitive features are emerging every day.
We don’t have any political or financial affiliation with any party or brand. That sets us on a neutral track to achieve objectivity. Our core mission is to enlighten our audience with the right kind of knowledge regarding a category of product, so they can make an educated decision.
Our Product Selection Process
We followed a precise research framework all through the selection process. Initially, we spent over 30 hours doing online research sifting through hundreds of consumer reports and specs sheets to find out the most advanced and sophisticated tankless toilets up for sale. That way, we were able to track down 25 top-of-the-line models from the most reputable brands.
Once the primary list was made, we sought help from a group of community based volunteers to manage all the models at our disposal. That led us to the next stage of our selection process--field-tests. We took each model and installed it to see how efficiently it functioned. We closely examined their build quality, design, material, finish, ease of installation, ease of cleaning, effectiveness of flushing mechanism, flushing options, ADA compliance, advanced electric and sensory features, durability and cost-effectiveness. Based on these criteria, we were able to champion 10 top models from the rest.
Once we were done with the testing, we reached out to other industry experts and celebrated plumbing engineers of the country to have their insights and suggestions regarding our final models. That way, we accumulated all the data and knowledge before proceeding to write full reviews on our final 10 tankless toilets.
Our Top 7 Best Tankless Toilet List
Tankless Toilets - Buying Guide
So what do I need to know to detect the best tankless toilet for my bathroom? To answer this question, we’ve come up with the following section. Please read carefully.
You should not pay for any product without taking the time to check its build-quality. This is because the quality will affect the durability and performance of the toilet. So, we recommend you find a model with the best quality though it might come at a price.
2. Power Supply
You need a power supply to initiate the flushing mechanism in a tankless toilet like you do for an upflush toilet. If we had a section titled: ‘Tankless Toilet vs Tank Toilet’, we’d put this difference on the top. In terms of power supply, if you do not have a regular one in your home, you should avoid buying an electrically operated tankless toilet. However, some models use a battery and can flush when there is a power outage manually.
Tankless toilets are either floor-mounted or wall-mounted. You should consider the toilet’s design and your wall’s ability to support its weight before choosing any of these types.
- Floor-mounted – If you have adequate bathroom space, you can select a floor mount model. It is fixed to the floor, making it easier to install than the wall hung types. However, once it is installed, you cannot easily adjust its height.
- Wall-mounted –These toilets are installed to hang on the walls of the bathroom. They are ideal for homes with limited space. Notably, they have a sleek design and are easy to clean.
The fact that these toilets are without tanks means you can install them in tight places. These tankless models are ideal for small bathrooms. However, they also come in different sizes and shapes, so take your time to compare them, then pick a model that will fit in your bathroom’s space.
5. Flushing Mechanism
You should be mindful that the toilet’s flushing system is powerful enough to clear the solid waste in a single flush. Some models might look appealing but will take around three to four times of flush; as a rule of thumb, avoid them. Of course, everyone wants a unit that works as good as it looks. Sometimes, you might encounter issues with flushing. If it doesn’t work, you always have the manual option. If you want to know how to flush a tankless toilet without water, just get a bucket full of water and empty it in the commode. There you go. The wastewater will vanish in a few seconds. That’s the easiest solution before you call a professional.
6. Water Consumption
If you want to save money on energy bills, then it is crucial to select a unit with high water savings. Pick a quality flush valve in that case. Be sure to get a model that conserves water but also has enough pressure to remove the waste quickly. If you have a slow filling valve for regular toilets, there are easy ways to fix it. However, in this case, you need a certified plumber to do that for you.
7. Seat Height
Different tankless commodes have heights ranging from 15 to 20 inches. If you are sharing the bathroom with others, especially with people with mobility issues, you should consider buying the comfort height types.
8. Bowl Shape
Tankless toilet shapes are categorized into three, namely, round, elongated, and compact elongated types.
- Round shape – No-tank toilets with round shapes have a bowl’s measurement of up to 28 to 31 inches. They are known to save more space but not quite comfortable to use.
- Elongated shape – These are suitable for people of all ages and offer the highest comfort. The bowl is between 28 to 31-5/8 inches, measured from the nose to the back.
- Compact elongated shape –As the name implies, this toilet has a much smaller size, but with the elongated shape, you will have great comfort. It is suitable for small space bathrooms.
You should choose a water closet (WC) that will offer you the best in terms of comfort. Before picking your ideal model, try to compare the various features of the units to determine the level of relaxation they can offer. A few of the specs to look out for include heated seats, auto open and close lid, warm water, comfortable height, night light, self-cleaning, and much more. The models we’ve mentioned in our tankless toilet reviews would meet this
10. Ease of maintenance
Most no-tank toilets are more accessible to clean than others, depending on their shape, design, and finish. Unlike the no septic composting models (also known as a plumbingless toilet), these are easier to clean. Besides, Sanagloss finish prevents the sticking of dirt on the bowl’s surface, reducing the rate of cleaning and restricts the use of harsh chemicals.
11. Advanced features
Mostly, the price tag on the toilet will determine the number of extras you will get. In other words, a unit with an auto flushing mechanism, remote controller, and heated seat will cost more. A feature like a night light, automatic open and close lids, auto flushing, etc., are pretty essential for homes with kids and physically challenged persons.
No-Tank Toilets – Pros & Cons
If you are considering investing in any of our listed items, we believe that their benefits and drawbacks below put you on the right track.
- Tankless wall drain toilets are smaller than regular types yet still perform flawlessly.
- Mostly, they do not require a pump; however, they produce a more powerful flush.
- They use minimum volumes of water.
- The tankless flushing system works fast because they take less time to refill. This comes handy when people queue to use the facility.
- In tankless toilets, the supply pipe is in the wall, making it less prone to leakage.
- It’s available in all corners of the world.
- Tankless toilets are easier to clean and maintain.
- They are stylish and have more design flexibility.
- You have more space to install a shelf over the toilet.
- Most of them depend on power to function, so it can only flush when there is power.
- The installation is complicated and requires the services of a licensed technician.
- Tankless toilets are quite expensive.
- Homes with low water pressure will experience flushing issues.
Tankless Toilet Installation Tips
Ready to install a tankless toilet? Whether you are making a replacement or installing a commercial tankless toilet for the first time, these tips will help you do it right.
- Check if the drainage system in the house will support your new lavatory. Ensure that the pipes in your building can withstand the toilet’s water pressure. For the best performance and reliability, you need to install at least a 1-inch pipe.
- Damages may occur with the pipes whenever you are replacing a tank toilet with a tankless type, which might cause you to overhaul the plumbing installation.
- For toilet replacements, you need to inspect the flange for damage. Where the flange is damaged or cracked, you should replace or repair it.
- Make sure that you set the closet bolts upright within collar slots of the flange before placing a brass washer around each peg.
- Check the wax ring to determine if it is thick enough for the toilet to rest on.
- Line the bowl over the ring and bolts, but ensure it sits evenly on the floor. Then tighten the screws to secure the bowl.
- After installing the seat, you can now link the toilet to the supply.
- It is more cost-effective and efficient to install a tankless toilet in a new building and where you are guaranteed of adequate power supply.
Visiting the bathroom is something we do every day, but installing the best tankless toilet in your home will give you a life’s changing experience. While there are many options available on the market, be mindful of things you should consider to ensure you are making the right choice. Hopefully, these tankless toilet reviews will give you a good head start.
All the units we have listed are excellent in terms of quality, functionality, and performance. They are also user-friendly and use less water. If you are searching for a reliable and affordable model, we think our top pick; the Saniflo 023, is worth the purchase. It has an electronically controlled flushing mechanism, and you can link it with a bathroom sink.
For the most sophisticated model, the Bio Bidet IB835 tops the list. It is full of extra features that compensate for its huge price point. Overall, if you need an excellent performance tankless toilet, then try any of our models today.
1. How tankless toilets work?
Ans. They function through regulated flushing mechanisms that are connected to the main supply pipe.
2. Can I install these toilets in a skyscraper?
Ans. Yes. However, you should first check your supply water pressure. If the psi is low, you will need an external pump.
3. Right for your residential home?
Ans. Installing a tankless toilet in a residential home is a little complicated because such places have low pressure for the system to function correctly. You will need to install a pump, and that requires hiring an expert who might be expensive. To avoid all these, check your home’s psi and plumbing system before buying a no-tank toilet.
4. My toilet has auto flushing, what will happen in case of a power outage?
Ans. If your toilet can only function by electric power, it will automatically stop working once there is an outage. To avoid situations like this, we recommend you shop for models with a battery backup that could still flush when the main power supply is cut.
5. My water has low pressure. Can I use a tankless toilet?
Ans. Yes. But you experience some flushing issues if you do not install a pump.
6. Do tankless toilets conserve water?
Ans. Yes. All the options we have listed are designed to save water.
7. How much does a tankless toilet cost?
Ans. The price is from $1000 to $5000. You will always get what you pay.
8. The tankless toilet won’t flush; what should I do?
Ans. This is as a result of a poorly seated flapper. Mostly, you need to replace the flapper or its connecting chain.
9. How to flush a tankless toilet without water?
Ans. You can only clean the toilet with a bucket of water by pouring at least a gallon into the bowl.
10. Tankless toilet keeps running, what should I do?
Ans. Some of the underlying causes of this are:
- Displacement of the relief valve
- Clogging of the bypass orifice
- A damage or crack of the inside cover
- Line pressure dropping too low
The remedy is to disassemble the affected parts and clean them thoroughly. Replace the inside cover and shut other controls to restore the water pressure.