Best Overall
Nature’s Head Self-Contained Composting Toilet
Runner-Up
Sun-Mar Excel Electric Waterless Composting Toilet
Best Bang for the Buck
Sun-Mar GTG Electric Composting Toilet
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For folks with mobile homes or bantam houses that lack the plumbing system to support a traditional flushing commode , a compost potty could be the root . This strange kind of toilet apply aerophilous bacterium to break down human thriftlessness and stows it in a neat , easy - to - remove package .
Thistype of toiletseparates liquids from solids , breaking down the solid waste andtoilet paperwith organic cloth and bacteria to become manure . While these sept can toss away of the waste material in a trash bag if local regulations allow , it can also be used in a garden — if they should take . This guide propose shopping point and evaluates the best compost commode picks below . Our top pick is theNature ’s Head Self - Contained Composting Toiletthanks to its lightweight and portable build as well as its impressive public discussion .
Our Top Picks
The following are some of the best composting toilets ( or alternatives to composting potty ) on the market . Be sure to review each and then check out the top shopping considerations heel below .
When it come to a durable , easy - to - use compost toilet , it ’s tough to beat this Nature ’s Head modelling . It diverts water into an well removed tankful and boast a side - rise “ wanderer ” handgrip for churning the solid waste inside the armoured combat vehicle . The waste tank is large enough for two adult to use full - time , which will need emptying every 4 to 6 week .
The Nature ’s Head compost toilet practice an galvanising fan to attract unfermented air in and push odors out , helping to keep smells at bay . While the fan uses 12 - V office , it can commute to 110 V with a kit purchased straightaway from Nature ’s Head .
Get the Nature ’s Head compost lav atAmazon .
The Sun - Mar Excel compost toilet is worth looking into when shopping for an eco - favorable model . This composting lav uses an galvanising fan to dry liquids , but it also draws air into the tank and pushes waste gas out of the vent to purge scent . The self - contained tankful is large enough for three adult .
Even with the Sun - Mar Excel ’s tumid electrical capacity , it weigh just 60 pounds , and installing should be fairly easy . It may , however , require an additional electric kit to electrify it for 12 - V office in a gravy holder or camper .
Get the Sun - Mar Excel composting john atThe Home Depot .
The Sun - Mar GTG compost commode is worth a look when searching for a succinct , portable design that also composts . Unlike other travel good example that still need empty into a sewer , the ego - control GTG produces the same eccentric of compost as other much large toilette . And its waterless design allows you to save on your H2O bill .
The GTG is a waterless toilet with a 12 - volt - powered rooter . It separates solid and liquid wastefulness , dividing them into two promiscuous - to - remove containers . It librate just 25 British pound sterling — a addition for portability — and measures 19.8 inches high by 15.75 inches wide 24 inches deep , so it will equip in most bathrooms of tiny homes , RVs , and campers without issue .
Photo: istockphoto.com
Get the Sun - Mar GTG composting sewer atThe Home Depot .
Best for Odor Control
OGO Compost Toilet
sept who have a go at it the mind of a composting toilet but not necessarily the odors they can give out should deliberate OGO ’s compost lav . This streamlined motorcar features a small lover that pulls smoke and excess wet away from the waste , pushing it outside through a ventilation organization . This prevents odors from escaping and permeating the living space . The sports fan draw on 12 - V business leader , so it ’s suitable for RVs and most diminutive homes , though a convertor may be necessary for received voltage .
This unit separates solid state from liquids . The liquidity end up in the 2.4 - gallon feeding bottle in the front of the can while the waste heads to the strong binful . This allows for 25 to 30 uses before requiring emptying . The untarnished sword world power agitator check that bacterium and enzyme can access all of the waste for well composting as well . It may be slightly small for some , measuring just under 18.5 column inch tall by 16 in full by 15 inches deep .
Get the OGO composting gutter atAmazon , Camping World , orOGO Toilet .
Photo: amazon.com
Best Portable
Boxio Portable Composting Camping Toilet
What it does n’t have in fancy rooter , fomenter , and ventilation the Boxio toilet makes up for in portability . Weighing just 8.3 pounds , this charge card milk - crate - size of it composter can go just about anywhere you need to , well , go . It separates swimming from solid , and this helps prevent odor even without a power source or sports fan .
The Boxio ’s main solid compartment has a capacity of 1.3 gallon and a separate nursing bottle for liquid . This allow for up to 10 toilet slip before command empty . For folks who do n’t need to hold onto that alimental - copious waste matter , Boxio ’s Bio Bags arebiodegradableand therefore disposable , making cleanup easy , mess - free , and environmentally friendly . This recycled - plastic throne measures 11 inches mellow by 11.81 inches full by 14.75 inch cryptic . return its size , however , it might not be the most comfortable compost toilet to sit down on .
Get the Boxio compost toilet atAmazonorBoxio .
Photo: Amazon.com
Best Compact
Separett Villa 9215 AC/DC Composting Toilet
For an all - around stocky composting bathroom , check out the Separett Villa 9215 . This waterless self - carry composting toilet has an galvanising fan to exchange gas , function on both 110 volts in a house or on a 12 - V system in a boat or motor home . It ’s lightweight at 30 pounds and on the small side , so it ’s quite portable .
The kit provide the toilet , adapter for both 110 - V and 12 - volt power , and all the function for direct discharge and for tying the fluid drain into a gray water supply system . The tank is bombastic enough for around 3 weeks of purpose by an modal - size of it family . If there ’s a downside , it ’s that the venting system was originally designed for European plumbing . Although it ’s been vamp for the U.S. market , there are several adapters to use to pair it with 3 - inch agenda 40 pipe .
Get the Separett composting toilet atAmazon .
Photo: homedepot.com
Best High-Capacity
Sun-Mar Centrex 3000 High-Capacity Composting Toilet
A composting toilet that sees even use must be able-bodied to handle a lot of waste , and this eminent - content compost toilet system from Sun - Mar does . This model , which work with a 1 - pint flush toilet or arid gutter ( sell separately ) , is capable of handling five adult or a family of seven for day-after-day residential use or up to eight adult for seasonal use .
Once the waste is flushed from the toilet , it travels through a drain pipe to the Centrex 3000 , which uses a biodrum to deform the human waste into fertilizer that can be recycled into the dirt . Since the Centrex 3000 requires no electrical energy , it ’s idealistic for use as an off - grid living composting bathroom or in bantam house with no consistent electrical connexion . Just keep in mind that at 30.25 inches in high spirits by 71 inches wide by 27.5 inches mysterious and 110 pound sign , this compost john system does take up a fair amount of space .
Get the Sun - Mar Centrex compost toilet atThe Home Depot .
Photo: homedepot.com
Also Consider
Saniflo SaniPLUS Macerating Upflush Toilet Kit
Many folks who plan to install a commode below their sewer line believe that composters are the only option , but that ’s not the typeface . With a macerate upflush crapper outfit like this model from Saniflo , DIYers and pros can set up a lavatory up to 15 feet below their sewer logical argument . The whole outfit remove up roughly the same amount of space as a received john , and it requires a 110 - V power source and H2O supply .
This outfit features a relatively standard - looking lav and a macerating storage tank and heart . The unstained steel macerating blades break the barren down into a slurry while the 10 - pounds - per - satisfying - in ( psi ) pump pushes that slurry out of the tank and into the sewer system . This tank can also care the wastewater from a sump and exhibitioner , allow for a complete bath installation below the sewer lines . However , folks look for a traditional composting toilet will have to look elsewhere as this kit is design to get rid of the waste , not set aside it to offend down into alimentary - rich filth .
Get the Saniflo composting toilet atAmazon .
Photo: amazon.com
Jump to Our Top Picks
How We Chose the Best Composting Toilets
We considered a variety of factor when lay down our selections of top compost toilets . Since capacitance is all important , we only chose composting toilets that could capably handle multiple adult or integral family . Odor controller is absolutely vital for a compost toilet to be efficient , so we select models with well - designed ventilation systems that prevent odors from overtaking the orbit around the toilet .
And , since a composting toilet for RV , tiny rest home , or gravy boat manipulation should be able to fit in a small space , we chose heavyset models while still keeping in mind that the toilet ’s behind should be tumid enough to fit an grownup comfortably . While cost was not a major divisor , we did favor compost toilets that offer the best bang for the sawbuck .
What to Consider When Choosing a Composting Toilet
Keep the following considerateness in mind to make the right choice of compost privy for any given app .
Types of Composting Toilets
Before purchasing a compost toilet , be sure that it will work in a feed location . There are two types — self - contained and split / central arrangement — and while they both break down waste , they work out a bit differently and have dissimilar requisite .
A self - contained compost toilet organization consists of a lowly toilet with a detachable tank and a liquid drain for removing waste . Some self - contain systems are portable , which work for bivouacking trips or boat rides and can be specify up in a space where plumbing wo n’t pass , like a workshop or garage .
The total composting process occurs within the can , hence the name . When full , hit the tank and empty the manure . These systems sometimes have freshwater tanks or supply melody as well to flush waste into the sleeping accommodation below .
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compost toilet that work with split or central system are similar to a traditional toilet . They connect to a organization of piping that take the waste to a central biodrum , hopper , or tank , which is where compost takes place . The hopper churns the waste , allowing it to bust down while also venting the odorless gun . When the tank car fills , empty it just like a self - contained toilet .
A stock split compost pot system is much more expensive than ego - contained composters , as they require a hopper , usually installed below the toilet . The hoppers are a benefit because they importantly increase the amount of compost they can hold . They can be an attractive result for lasting off - grid or eco - conscious menage , but the setup makes these composting throne a poor pick for portability .
Available Space
Composting toilets take up a bit more base infinite than a traditional toilet , and they do n’t have an extra have got tank car to contend with . For atiny homeor gravy boat , expect for a summary compost toilette with a smaller waste tankful .
If distance for a split system is available , it might be deserving the investment to get the increased belongings capacity . Areas like garage and cabins sometimes have the tractableness for adding a hopper . In strong climates , installing the tank outdoors is an choice .
Portable vs. Composting
A portable toilet and a composting one may seem like , but there are some very meaning differences . Composting sewer use bacteria to bring out down human waste . They separate solid and melted barren , allowing the bacterium to feed upon the organic compounds in each . After the composting operation , the humanure can fortify a lawn or garden . The byproduct of the composting process fertilize the soil and brings nutrients to flora .
A portable crapper does nothing of the sort . With portable toilets , everything goes into one permissive waste storage tank where liquidness are not separated from solids . Even after pouring enzymes and deodorizers down into the tank to break solids down and offset odor , the end mathematical product still needs to find its way into a sewer or infected system . So while a portable toilet can be ready to hand for encampment and boat trip-up , it may not be the best option for lasting residences like peregrine home and midget abode .
Tank Capacity
When search for the best composting toilet , the bit of mass who will be using it should determine how big of a tank is required . manufacturer often break out this down by family size of it and appropriate use of goods and services . For instance , a split scheme with a high - capacity tank might treat waste from three adults or a family of five , while a self - contained composting commode with a 5 - gallon tank would be more than enough for one adult . The idea here is that by sizing the tank right , waste will have enough clock time to break down into manure before the cooler fill .
Utility Usage
Some composting lavatory apply electricity to power a sports fan that draws line into the army tank and across the wasteland . The melodic phrase is rich in atomic number 8 to feed the aerobic bacteria break down the thriftlessness . This also substitute the carbon dioxide produce by the bacteria , venting it into the air travel . Many solve with a domicile ’s 110 - V organization , while some work with both 110 - V AC and 12 - volt DC from a car or RV battery .
A composting stool may also need a pee argumentation . While this seems counterintuitive , the compost stool that practice water consume very little with each affluent — far less than a standard residential toilet . Waterless and nonelectric models are uncommitted too , so count the utility frame-up and family budget when choosing a toilet that will exercise best .
Odor Removal
The gas created by a composting bathroom ’s bacterium take to be give vent . Otherwise , odour could build up , or the bacterium ’s performance could suffer from a lack of fresh oxygen . The devotee some models use to draw airwave into the tank also forces the gases out through the vent , blackball unpleasant smells . bring organic materials like sawdust on top of the wasteland after each use can block the olfactory perception while still allowing the bacteria to break down the solidness .
FAQs
Still not feel flush with cognition about these potty ? Here are the solvent to some important frequently asked questions . If you need more info , contact your toilet ’s manufacturer .
Q. How do composting toilets work?
compost privy hold waste in a tank and allow aerobic bacteria to break it down to a material standardized to rich , moist grime .
Q. How do you install a composting toilet?
Installing a ego - arrest nonelectric waterless whole is straightforward . The only vexation is venting it outside . The directions that come with the toilet will have suggestions for venthole - pipe sizes and heights .
Q. Do you put toilet paper in a composting toilet?
restrained amount oftoilet papershould be fine . individual - ply is probably effective , but most compost lavatory wo n’t have an exit since toilet paper is biodegradable .
Q. Can you use a composting toilet as a real toilet?
Yes . The manure you end up with after the composting process is feces — just broken - down faeces .
Q. How long does a composting toilet take to work?
This count on how often you ’re supplying the john with fresh waste material . The bacteria in your composting toilet will start breaking down waste immediately , and it should take a few weeks to fulfill with humanure .
Q. Where should I empty a composting toilet?
If you do n’t need to use your compost for your lawn and garden , check with your local code enforcement about disposal . Some legal power let you to bulge it up and throw it in your garbage .
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