A Better Approach to Central Hot Water Systems
Traditional domestic heat pump hot water systems are often built in the field—introducing variability, risk, and long-term performance challenges. WaterDrop takes a different approach: engineered, factory-built systems designed for consistency, clarity, and control.
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.
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 CO₂ Heat Pumps
Using CO₂ 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 CO₂ 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.
Two System Configurations.
One Engineered Approach
System Technology
More Than Equipment: Tools That Support Better System Performance
Skid Systems
Fully Integrated central plant
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All components in one system
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Factory-built and tested
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Rapid installation
Droplet Systems
Modular Heat Pump Arrays
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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.
