Cala Systems

Cala’s predictive intelligence optimizes water heating using flow sensors, a variable-speed compressor, and solar integration.

Cala synchronizes water heating with solar production and household hot water usage patterns to reduce energy costs.

Cala learns when a family needs hot water and optimizes heating to use energy when it makes sense. It integrates into the home and is described as offering comfort, lower energy use, and savings.

Cala’s heat pump water heater integrates with recirculation pumps to reduce wait times and improve efficiency.

The company provides an annual checklist for maintaining a heat pump water heater, including cleaning the air filter and inspecting the condensate line.

The Cala heat pump water heater integrates with Home Assistant for local MQTT control, solar and battery integration, real-time monitoring, and Boost Mode.

One year after launch: Cala's fleet runs on the heat pump for over 90% of its energy, holds target temperature 99.7% of the time, and has passed 400 units sold.

The page covers Cala’s first deliveries, pilot installations, product testing, manufacturing in Massachusetts, certifications, and installer network growth.

Meet SumZero Energy Systems, a Cala Pro contractor in Massachusetts, and learn why expert installation matters for high-performance heat pump water heaters.

The page compares Cala’s heat pump water heater to a user’s current system and its impact on energy costs.

Dustin, Cala’s Southeast Territory Manager, helps contractors grow their businesses and promotes intelligent heat pump water heaters in the Southeast.

The company lists Cala Pro installers by location to help users check availability and pricing.

Cala is the intelligent heat pump water heater that customizes water heating for each home, each day — reliable hot water and lower energy costs.

Cala is a heat pump water heater that customizes heating to users' lifestyles. The page says it offers easy installation and can reduce costs and carbon footprints.

Two Massachusetts-based startups embrace high-pressure product testing under real-world conditions. One company subjects new sectional sofas to Super Bowl Sunday gatherings, while another evaluates grills during Fourth of July celebrations. The approach ensures durability and performance are validated through extreme consumer use.

Oct 2026massliveNews article

Cala develops smart, heat-pump water heaters that store and release energy to balance electricity demand on the grid. The company integrates these systems with software to optimize energy use during peak and off-peak hours. Early adopters include residential customers and utilities testing demand-response programs. Cala aims to leverage water heaters as distributed energy assets to support renewable integration.

May 2026Heatmap NewsNews article

A new startup is launching a smart heat pump water heater (HPWH) into a growing market. The sector now includes 13 brands of tanked HPWHs, up from just a few manufacturers at the start of the decade. The Advanced Water Heating Initiative, a nonprofit, supports manufacturers by showcasing their innovations to the industry.

Apr 2026CleanTechnicaNews article

Greentown Labs highlights recent achievements by its 200+ climatetech startups. The members demonstrate progress in scaling innovative solutions addressing climate challenges. Specific milestones include advancements in sustainable technologies and operational growth.

Aug 2024greentown.orgNews article