7 Best Tankless Toilets of 2024

Why should the advantages of a tankless toilet be exclusively for inside your home? With this portable toilet by Thetford, you can take some comforts to the campsite.

Okay, we’ll admit that while it doesn’t have a tank in the traditional sense, it has a small flushing reservoir, but because it is all self-contained, we felt it justified its place. So what has it got?

It has a 15-liter flush tank, a water-level indicator so you can judge when the tank is full, and a pouring spout to help you empty the contents. It has a lever pull at the front that opens the sealed flap to the waste tank, which holds 12 liters.

On the downside, considering this toilet is made from plastic, it is not a cheap option. We chose it because it is the best portable camping toilet, but that doesn’t mean there aren’t alternatives out there that deserve your attention.

Much like camping, when you are out on the open road, having all the essential services inside your RV means you can live comfortably. This Dometic 320 Series is the best of the bunch and looks and feels like your toilet at home.

It is constructed from vitreous china, so it is robust, and it comes complete with the toilet seat. The bowl is elongated in shape, and the seat height measures 19.75 inches, so it more than complies with the ADA standards.

It has a spill-free rim for when you are on the road and a foot pedal that, when partially pressed, fills the toilet with water, and when fully depressed, it flushes. Because this toilet is made from ceramics, it weighs more than standard plastic models.

Having a tankless toilet with a bidet function is the ultimate in luxury. This Woodbridge has a self-activating seat, so when you stand after going to the toilet, it flushes automatically; plus, as you approach it, the lid lifts to greet you.

You get feminine and posterior hygiene, a carbon air filter that removes any lingering odors, and remote control so you can choose the correct settings. It even heats the seat and dries your backside.

It has an LED for nighttime visits when you don’t want to switch the light on, and the powerful yet quiet siphonic dual flush lets you choose between 1.6 and 1.0 gallons per flush.

If you want to own this toilet, you will need to start saving now because it costs over $1,000, so it won’t suit anyone looking for a budget option. It also weighs 114.8 pounds, so if you install this toilet on your own, you will struggle to lift it.

This Saniflo toilet is the ideal model if you plan on converting your basement to a usable room. Unlike gravity-fed toilets that rely on dropping your waste matter into the sewer from above, this system pumps the waste vertically up to 9 feet high.

It also allows you to connect the toilet to a sink to tap into the water supply, and it also uses just 1.5 gallons per flush. You can place this toilet almost anywhere because it pushes the waste along 120 feet of pipework to the soil stack.

The seat height measures 18.5 inches, which conforms to the ADA specifications, making it more comfortable for the less mobile. It is also a great choice when space is a premium.

However, the cost of this toilet is considerably higher than other comparable models. It almost gives the Woodbridge Bidet a run for its money. Plus, macerating toilets are notorious for malfunctioning and becoming blocked.

If you have limited space like an en-suite, this Toto Washlet is a great choice, especially when you consider it has a bidet function as well. It also has a tornado flush, which removes the most stubborn waste material.

You get a Cefiontect coating that keeps the inside of the toilet bowl cleaner for longer, and you also get an automatic seat opener. Like the Woodbridge bidet option, you get a heated seat, a warm air dryer, and a deodorizer.

This is a universal height toilet, so it complies with the ADA specifications, and because it uses just 1.28 gallons of water per flush, it also complies with the WaterSense program.

However, we need to talk about the price. This model is double the cost of the Woodbridge, and we thought that one was expensive.

Okay, so we’ve covered your RV and your tent, but what about your boat? This Jabsco is the perfect marine toilet. It’s made from vitreous china and has corrosion-resistant parts to handle the harsh marine environment.

It comes in 4 varieties ranging from the compact bowl model to the one with a regular bowl and soft close seat. This is a twist and lock toilet, meaning that you have to pump the handle and then twist it 90 degrees, and the water flushes the waste away.

It can be fitted so the waste flushes overboard or to a holding tank, and it is reversible, so the pump can be mounted on either side. Another thing to love about this toilet is the price. It costs a fraction of the others featured.

Thanks to the corrosion-resistant materials, it can use salt and freshwater, plus the pump is so powerful, you can install it below the waterline.

The main disadvantage with this toilet is it is only suitable for boats, and because it is manually operated, you need to use a bit of elbow grease to get it to work.

We had to feature a wall-hung toilet. It’s a classic tankless style. This Swiss Madison is ultra-sleek, with cool lines and modern styling.

Plus, if you are looking for a toilet that uses the smallest amount of water, this model has a dual-flush facility, so it uses 0.8 gallons on the light setting and 1.28 gallons on the heavy flush. It is space-saving, has a soft-close seat with quick-release hinges, and is competitively priced.

It is a one-piece toilet constructed from porcelain, which is easy to clean and extremely robust. All the bolts and screws are supplied so you can mount this toilet. The only downside is you have to buy the tank separately, and fitting it is a challenge if you have limited building and plumbing skills.

However, because this is a wall-mounted toilet, you can choose the height you want the seat, so you could go for a standard seat height or please the elderly relatives and fit it at comfort height.