The WaHa Vaporator® Engine
Humid air carries water and energy. We keep both.
Most systems pull one value out of humid air and discard the other. The WaHa Vaporator® recovers the energy that other systems throw away and uses it to do the work again. One energy input. Two outputs: pure water and inexpensive dry air.
The problem
The old way leaves half the value in the air.
Humid air holds two things worth having: water vapor, and the thermal energy bound up with it. A dehumidifier keeps the dry air and dumps the water. An atmospheric water generator keeps the water and vents the heat. Each one keeps half and pays full price for it.
The cost of either machine is mostly energy, spent driving that heat in one direction and then letting it go. Recover the heat instead of releasing it, and the economics change.
The engine
A closed loop that pays itself back.
At the center of every WaHa Vaporator® is a sealed, closed-loop heat pump driving a desiccant wheel. The wheel captures water vapor from the air. The heat pump then releases that water, and as the water condenses back to liquid it gives off latent heat. The engine recovers that heat and feeds it straight into the next release. The energy does not leave the loop. It is used, recovered, and used again.
That recovery is the unlock, and it is protected WaHa intellectual property. It is the reason one energy input produces two finished outputs, and the reason the energy cost stays roughly flat as the air gets drier, rather than climbing the way it does when a system has to chill air all the way to its dew point.
One input, two outputs
The same engine, run two ways.
Drinking water from air alone
Distilled-grade water with no PFAS, microplastics, or heavy metals, meeting EPA, GSO 149, and UAE.S 149. Produced wherever there is air and power, with no source water to draw on and no waste brine to dispose of.
Dry air at a fraction of the energy
Dry air down to a low dew point, produced with 70 to 90 percent less energy than conventional desiccant dehumidifiers that rely on silica gel. The same engine, set to keep the air instead of the water.
Energy
Runs on whatever power the site has.
Reaches its rated output on ordinary grid power, with no precondition and no co-located heat source required.
Runs on solar or wind with battery storage, for fully off-grid and low-carbon deployment.
Takes low-grade waste heat where a site has it, and uses it in place of part of the electrical input.
The engine is built to accept energy from any of these. None of them is required, and the rated output does not depend on which one is available.
Operating envelope
Built for the conditions where water is actually scarce.
The WaHa Vaporator® holds its rated output from −20°C to 55°C and down to 7 percent relative humidity, a mixing ratio of 1.5 to 2 grams of water per kilogram of air. These are the hot, cold, and dry conditions where systems that work by chilling air to its dew point lose output or stop. Because the engine does not depend on the air being near saturation, it keeps producing where the need is greatest.
Proven, not promised
Field results, then patents to protect them.
The platform has run across seven pilot deployments with 99.999 percent uptime, in conditions ranging from desert heat to Nordic cold. It is protected by 39 granted patents across 13 countries, with about 50 more pending. The chemistry is shared across the field. The engine that recovers the heat is ours.
Pure Water. Inexpensive Dry Air. Anywhere.
One engine. Two outputs. Any energy source.