An intelligent water heater adapts to usage

This heat pump water heater anticipates and adjusts its heating to individuals' needs

Spotted: Heat pumps are becoming a popular and energy-efficient alternative to traditional boilers and water heaters. While traditional water heaters convert fuel into heat, heat pump water heaters work like a refrigerator running in reverse, using electricity to move heat from the air into a water tank. Now there is an even better type of heat pump. Cala Systems has developed an efficient and intelligent heat pump that heats water based on the patterns of use in each home.

The Cala heat pump uses predictive algorithms to understand each home’s hot water usage patterns. The system combines flow sensor readings with data such as electricity pricing, CO2 emissions, and more. It then automatically controls how fast and to what temperature the water is heated. For instance, the system heats slowly when demand is low and faster when demand is high.

Based on a user’s hot water habits and preferences, Cala forecasts when to heat water, what temperature to heat to, and how to optimise the compressor’s performance. The tech continually updates its forecast, so it’s always using the most recent information.

Cala can also heat water strategically, including before peak demand periods to avoid high electricity costs, and before storms to prepare for potential outages. Plus, it can integrate with home solar systems. Together, these capabilities decrease costs and reduce CO2 emissions.

The company recently completed a $5.6 million seed funding round, led by the Massachusetts Clean Energy Center and Clean Energy Venture Group. The heat pump water heater is currently available for preorder, with initial deliveries expected in the first half of 2025. To address adoption obstacles, Cala is also establishing a network of professional plumbers, electricians, and HVAC contractors to support installation.

Written By: Lisa Magloff