Centralized Heat Pump Hot Water Systems for High-Performance Buildings
WaterDrop Systems deliver fully integrated, all-electric domestic hot water solutions that reduce operating costs, eliminate on-site combustion, and improve building performance across multi-family, hospitality, dormitory and mixed-use buildings.
A Better Approach to Domestic Hot Water
Designed to improve performance, reduce operating costs, and eliminate the risks associated with site-built systems.
Lower Operating Costs
High-efficiency COâ‚‚ heat pump systems significantly reduce energy consumption and improve long-term building economics.
Electrification Ready
All-electric architecture eliminates on-site combustion and supports decarbonization goals, ESG targets, and evolving building codes.
More Usable Space
Centralized systems eliminate in-unit water heaters, freeing up valuable interior square footage and simplifying building layouts.
Reduced Design & Installation Risk
Factory-engineered systems reduce coordination challenges across trades and minimize the risk of field-built errors.
Single-Source Accountability
One integrated system with one point of responsibility for performance, warranty, and long-term reliability.
Factory-Built Advantage
Reduce installation uncertainty and improve system reliability with controlled manufacturing and pre-engineered integration.
Avoid oversizing and inefficiencies with data-driven design tools that reflect actual building demand—not assumptions.
Operational Visibility
Monitor performance, track system health, and respond proactively with integrated controls and cloud-connected insights.
How WaterDrop Systems Work
Generate
WaterDrop uses high-efficiency CO2 heat pumps to generate thermal energy.
Store
Thermal storage tanks store hot water for peak demand use by building occupants.
Deliver
Hot water is supplied when the building needs it, reducing energy use while maintaining consistent performance.
Manage
Integrated controls ensure the system responds to real building demand - not assumptions.
Designed Around Real Building Demand
WaterDrop systems store energy ahead of peak demand and recover over time - allowing system to meet building load without oversizing equipment.
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Storage sized for peak demand
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Continuous high-efficiency operation
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Recovery over time (4-8 hours)
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Reduced oversizing
What Makes WaterDrop Different
Complete Drop-In
Plug & Play Solutions
WaterDrop systems are designed and fabricated off-site, then delivered when needed. After the skid is physically secured on-site, the only connections required are mains power, and the water connections: cold water in, hot supply water, and recirculation.
Highly Efficient COâ‚‚ Heat Pumps
Using COâ‚‚ refrigerant technology, our heat pumps have the highest COP of any hot water system, reaching up to a coefficient of 5.5. This is because COâ‚‚ refrigerant reaches a trans-critical state not achieved by other refrigerants, increasing the energy output of the system..
Factory Assembled for Your Project's Needs
WaterDrop® systems are designed specifically for your project by our engineers.
WaterDrop® systems are assembled in our manufacturing plant in Tumwater, Washington and delivered to your site.
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Flexible System Configurations.
Centralized and modular solutions designed to meet a wide range of building types and project requirements.
System Technology
More Than Equipment: Tools That Support Better System Performance
Centralized Skids
Factory-assembled systems that deliver high capacity, simplified installation, and centralized maintenance - ideal for projects seeking a single location solution.
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All components in one system
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Factory-built and tested
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Rapid installation
Modular Droplets
Distributed systems designed for flexibility, scalability, and reduced infrastructure requirements - ideal for projects with space constraints or phased construction.
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Separate heat + storage
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Scalable design
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Flexible layou
Energy-Saving Hot Water Solutions
Load Shifting & Grid Responsiveness
Heat and store water when energy is inexpensive
Deliver hot water
when demand is highest
Designed for
High-Demand Buildings
Mulifamily
Hospitality
Student Housing
Mixed Use
See What Makes Waterdrop Different
In September 2023, Washington Governor Jay Inslee visited our Tumwater WA production facility to see what WaterDrop is doing to change the future of Domestic Water Heating.
Governor Inslee got a preview of WaterDrop's next big idea to revolutionize hot water storage using Phase Change Material.
