Sun-Mar Sun-Mar Compact Composting Toilet
Sun-Mar Sun-Mar Compact Composting Toilet CSEM-01400B
Sun-Mar Sun-Mar Compact Composting Toilet
Sun-Mar Sun-Mar Compact Composting Toilet
Sun-Mar Sun-Mar Compact Composting Toilet CSEM-01400W

Sun-Mar Compact Composting Toilet

Sun-Mar Compact Composting Toilet

Regular price $2,060.00
  • FREE Shipping and No Tax (It's On Us!)
  • Ships in 7 - 10 Days
  • 30 Day Hassle-Free Returns
  • 30 Day Price Match Guarantee
  • In stock, ready to ship
  • Backordered, shipping soon

Sun-Mar Compact Composting Toilet

The Sun-Mar Compact Composting Toilet is ideal for cabanas, cabins, guest houses, light cottage use or any remote place where there is an electrical connection but no plumbing. Completely self-contained, the Compact is a simple solution.

A compost toilet is a great way to save thousands of gallons of water each year and dramatically reduce your foot print on the environment.

Not only will this unit save you thousands on septic installation and maintenance, you are also helping the environment, saving water, and living green!

Sun-Mar Compact Full Time and Part Time User Capacities

Sun-Mar Compact What's Included

  • Compact Toilet
  • Owner's Manual
  • Warranty Card
  • Bowl Liner
  • Footrest
  • Rake
  • 2" ABS Vent Pipe 30"L (Qty:4)
  • 4" Diffuser
  • Hardware Kit
  • 2" Pipe Insulation
  • Compost Sure Green (1 Bag)

Sun-Mar Compact Dimensions

  • Height Width Depth: 28.5" x 21.5" x 33"
  • Depth Required to Remove Drawer: 45"
  • Weight: 50Lbs

Sun-Mar Compact Electrical

  • Max Amps: 2
  • Fan Watts: 35
  • Heater Watts: 200
  • Ave Power Use in Watts: 125 

 Sun-Mar Compact User and Installation Manual

Compact Composting Toilet User Manual

Want To Learn More About Compost Toilets?

The Ultimate Composting Toilet GuideBe sure to check out our book! Just released, The Ultimate Composting Toilet Guide - Everything You Need to Know About Composting Toilets.

Watch The Sun-Mar Compact Video!

Why use a Sun-Mar composting toilet?

General Benefits:

  • no plumbing
  • no water
  • odor-free
  • inexpensive solution

Environmental Benefits:

  • no pollution
  • saves water
  • recycles nutrients
  • little or no liquid output

To install, simply plug into a regular 110V outlet and connect the supplied 2 inch vent stack. Seasonal capacity: 3 adults or families of 4. Residential use: 1 adult or family of 2

Free Shipping Promotion:

Shipping costs for our business are typically around $10 for accessories can range and up to $450 for larger items.  However, for a limited time only, we are offering free shipping on all products to the lower 48 states in the U.S.. No minimum order required!

If you would like an order shipped to anywhere else in the world, please email us at, and we will gladly work something out with you! reserves the right to cancel this offer at anytime

Order Confirmation:

After you place your order, you will receive a confirmation email.  This means that we have received your order in our system.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and ready for shipment.  If your item happens to be on backorder, or is otherwise unavailable, we will let you know via email.  Once your item(s) are available for immediate shipment, we will ship the order.

Order Shipment:

Your order will ship within the lead time we have posted on the product page.  We will email you tracking information within 24 hours of your order leaving the warehouse.  If you do not receive tracking information from us by 3 days after the lead time posed on the product page has elapsed, feel free to follow up with us at

Most orders will be shipped by FedEx or UPS. Small items may be delivered by the US Postal Service or by the US Postal Service via FedEx Smartpost or UPS Surepost. Larger items may be delivered via FedEx Ground, FedEx Home Delivery, UPS Ground, or Truck Freight. Items shipping via Truck Freight are clearly marked on our website and catalog. Some special orders may require 2 to 6 weeks depending on the item.

Some large or heavy items require additional shipping and handling charges due to the bulky nature of these products. If an item requires additional shipping and handling charges we will clearly mark this requirement on our website and in our catalog. In most cases, we charge a "flat" rate to ship these items.

Free shipping applies to orders totaling over $99 shipped to a final destination within the contiguous 48 states of the United States. Certain items do not qualify for free shipping regardless of order total. Items that do not qualify for free shipping will be clearly marked on our website. reserves the right to cancel this offer at anytime. Delivery to rural or extended areas, special order, & Truck Freight shipments may take extra days to arrive. Please call (888) 467-5447 for details.

International Orders:

International Orders (except Canada) require special processing. When you are entering an International Order, please complete all the necessary information. We will get a shipping quote from one of our International shippers. We will contact you with the final charges for approval. The order will not be shipped or charged unless it is confirmed by you. Please note: You will be responsible for any applicable taxes and/or duties that will need to be paid upon delivery.

Canadian Orders: We do not ship directly to Canada, however, we will ship to a US-based freight forwarder of your choice! We recommend you first contact the desired freight forwarder to obtain their shipping and receiving processes. You will be responsible for all duties and tariffs on Canadian shipments, along with coordinating with the freight forwarder for delivery to final destination. Please call (888) 467-5447 for assistance, otherwise enter the shipping address provided by your US-based freight forwarder.


ALL SHIPMENT SHOULD BE INSPECTED AT THE TIME OF DELIVERY. DAMAGED PACKAGES SHOULD BE REFUSED. If you notice any damage, you should note it on the freight bill when signing for delivery.  If your product is defective or sustains damage during shipping, please contact us at right away. Remember to keep all the original packaging for any items that need to be returned. All returns need to be authorized by our customer service department prior to being processed.

If delivered by Truck Freight, please contact the freight carrier at the phone number on the carrier’s bill. After contacting the carrier, please call Customer Service at (888) 467-5447 for further assistance with the damaged shipment. Please note, signing for your delivery without noting any damages or inability to inspect the delivery on the relevant paperwork legally states that you have received your freight in good condition and cannot be held liable for any damages, missing pieces, etc. that may be incurred as a result of this decision. Leaving a note or instructions for the driver is considered to be the same as signing for your products in good condition. If you authorize the freight company to leave freight without a signature, cannot be held liable for any damages, missing pieces, etc. that may be incurred as a result of this decision. If you choose to sign for a visibly damaged please note on the relevant paperwork that you are signing for a damaged package; however, cannot be held liable for any damages or missing pieces for accepted via signature delivery.

Cancellations & Refunds:

To cancel an order, reply to the confirmation email you received when you placed your order online. Just tell us why you need to cancel and we will process it as soon as we can.  All orders canceled after 48 hours are subject to a $50 administration fee, regardless of whether your order has shipped.  If you order has shipped, you will also be responsible for return shipping charges. Refunds will be issued to the credit card that you used when placing your order minus a 10% restocking fee.*

How do I return a product?

If you want to return an item, please send an email to

Returns will only be accepted within 30 days** of the receipt of your product.  The product must be returned unused in the original packaging.

We do not accept returns of used products.  You should also provide us with a receipt of your purchase and a reason for returning the item.

Please note that you cannot return an item without a valid return authorization number.

You (the customer) are responsible for return shipping to the address given at the time you receive your RMA. In addition, there will be a 10% restocking fee on all returned products.

Upon receiving and inspecting the returned product, will issue a refund for the full amount (minus restocking fees) to the credit card used for the purchase only.

Custom Orders

Unfortunately, we are unable to accept returns for custom ordered products (made through a custom invoice) due to the nature of these specially ordered products. 

 * A 20% re-stocking fee will be applied for all Aqua2Use and Dry Flush products

** For all Emergency Water Well products, the item must be returned within 10 days for receiving the product. All other conditions above apply. 

Questions & Answers

Have a Question?

Ask a Question
  • Can I use toilet paper with this compact composting unit?

    Yes you can use regular toilet paper with this composting toilet.

  • Can you tell me if there is a warranty on the Sunmar composting toilet?

    There is a warranty on the Sun-Mar composting toilet. It is three years on any part that fails and five years on the fiberglass tank, provided that our inspection shows that such failure is due to defective
    material or workmanship.

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Customer Reviews

Based on 4 reviews
Cindy Brown

The product is exactly as I wanted functionally, but the finish on it is bubbling.

Barbara K.
wrong selection, my bad

the sunmar composting toilet that i ordered was not the right choice for my needs. unfortunately i had to find this information out by opening the carton and reading the manual. although perfectly suited for personal use, i had chosen it for a guest studio in my barn. the necessary maintenance required more intimacy with effluence than i would want for my guests. returning it will cost me both shipping and a 20% restocking fee. none of this is the fault of tiny houses.

Randy H.
thumbs up

We just added this composting toilet to the bathroom in our tiny house on our horse ranch. It really is odorless and works very well. It was the easiest part of the remodel!

Its only for occasional use, but it works well

I've owned my Compact for a few years now and have learned how to maintain it without much effort at all. It was a little bit of a pita at first. The bathroom never has any odor due to the fan. I did install the factory supplied rheostat to reduce fan speed and it helped to reduce noise but it is still apparent. Urine has been a non-issue for us. I did pipe the overflow hose to a small eco-sump outside, located in a small plastic tank (filled with sand and other materials according to internet specs). My Compact is in a barn not in our house to avoid installing a second septic tank. For my house I would install the type that has remote composting tank, but this is much larger than the Compact. The Compact is a nice looking toilet. It is a little higher than standard toilets. We have had no issues with hardware, defects, or any kind of failures. I would recommend this unit as long as you are committed to learning how to use it according to instructions and are not too put off by doo-doo,

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