Name: BioLet 55
Brand: BioLet
Price: 2255.00 USD

For grid-powered cabins and cottages that want a hands-off composting toilet: automatic mixing and evaporation with no urine bottle, at a high price.

Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Cons

Needs a 120 V outlet for its fan and heater, which rules out most van and small solar setups
Rated for 3 to 4 part-time users, so it is sized for cabins rather than full-time homes
The maker publishes no power draw, so sizing an off-grid system is guesswork
No NSF/ANSI 41 certification is stated

The BioLet family

Every BioLet model we rank, smallest first. Ratings compare each against its own type.

Model	Capacity	Rating	Price
BioLet 55 (this one)	-	3.1/5	$2,255
BioLet 65	4 people	2.8/5	$2,970

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

For off-grid cabins that need a certified toilet with no power; plan for a drain line and a tall vent.

$1,825

For cabins and homes on grid power that need a certified toilet for a full time household; its power draw rules out vans and small solar systems.

$2,040

For a small cabin bathroom on grid power with one full time user or occasional guests, where a certified toilet is required.

$1,935