Feb 06, 2019 - 06:55 AM
All the Luxury Class model have only one heating element and one size water tank. This will provide you with 30 seconds of continous warm water.
The Premier Class bidets as shown at the below link have longer heating capacities. The BB-2000 is the only TRUE bidet with unlimited warm water to to having two heating elements but not a larger water tank.
BB-2000 Unlimited warm water
Source: Warm Water Reservoirs