Hootwater
Hootwater offers a smart add-on device that retrofits standard electric hot-water tanks to shift heating to off-peak, low-carbon periods while providing rapid top-ups when demand spikes. The system continuously optimizes heating cycles without user intervention, delivering 15-25% savings on annual operating costs for households on time-of-use rates. Users can select between Everyday and Saver modes, with a dashboard for monitoring tank performance.
- Clean Technology
- Energy
- Internet of Things
- Hardware
Funding
Founders
Founder details are not available yet.
Product
Problem
Water heating is the second biggest user of energy in the home, yet standard electric tanks heat at times when electricity rates are highest, grid demand is peaking, and power generation is most carbon-intensive. This inefficiency drives up household costs and contributes to unnecessary carbon emissions during peak periods.
Solution
Hootwater provides a smart add-on device that retrofits any standard electric hot-water tank to shift much of the reheating load to optimal off-peak times. The device continuously monitors usage patterns and automatically triggers rapid top-ups when hot water demand spikes, ensuring users never run out. Beyond initial setup, the system operates autonomously, adjusting to household needs without further intervention. Users can choose between Everyday and Saver modes, both of which shift electric load and reduce costs while maintaining reliable hot water supply.
Target Audience
Primary customers are homeowners with standard electric hot-water tanks who pay time-of-use electricity rates and want to reduce energy costs without replacing their existing equipment.
Features
- Retrofit device compatible with any brand or size of standard electric tank, with larger tanks enabling greater load shifting
- Automatic load shifting to off-peak periods based on time-of-use rates and real-time usage patterns
- Smart top-up functionality that detects sudden hot water demand and activates heating to prevent supply shortfalls
- Continuous self-optimization that adjusts to household usage patterns without user intervention
- Everyday and Saver modes for user-selectable balance between savings and comfort
- Web dashboard providing tank monitoring, mode selection, and heating cycle optimization insights
- UL and CSA approved device that complies with building code requirements