An intelligent heat pump water heater that thinks ahead so you don’t have to.
An intelligent heat pump water heater that thinks ahead so you don’t have to.
What is a heat pump water heater and why is it better?
Curious about water heater efficiency? Learn all about it here.
heat pump water heater
Heat pump water heaters are like a refrigerator running in reverse: they use electricity to move heat from the air into your tank. This is the most efficient way to heat your water.
Saves you money
Eligible for thousands of dollars in federal, state, and local rebates
Reduces emissions today, paving the way for zero emissions tomorrow
Free dehumidification and cooling
traditional water heater
Traditional water heaters convert fuel into heat, whether that’s electricity, natural gas, propane, or oil. This is a less efficient way to heat your water.
Saves you energy and money Eligible for over a thousand dollars in federal, state, and local rebates and tax credits for most homes Reduces emissions today, paving the way for zero emissions tomorrow
Uses more energy and costs more money
Higher greenhouse gas emissions
May impact the air quality in your home
Why Cala?
Today's heat pump water heaters are designed to heat when the water in the tank gets cold—and that's it. We've redesigned the water heater to optimize heating based on your home's unique needs and priorities.
Here's how it works:
STEP 1
Set your preferences
After installation, use the app to set your preferences. Cala will automatically tailor its heating based on what matters to you, whether that's saving money, reducing carbon emissions, synchronizing with solar, and more. And you can easily adjust your settings at any time.
Cala uses its flow sensor to learn your home's unique hot water usage patterns. As these patterns change throughout the day, week, and across seasons, Cala automatically adjusts to ensure optimal comfort and performance.
Based on your hot water habits and preferences, Cala forecasts when to heat water, what temperature to heat to, and how to optimize the compressor’s performance. Cala continually updates its forecast so it’s always using the most recent information.
Cala adjusts heating speed for optimal performance.
Cala is the first water heater that adjusts its heating speed based on future planning. Unlike other heat pump water heaters, Cala heats slowly when demand is low – improving efficiency – and faster when demand is high.
Cala delivers up to 50% more hot water by heating to a higher temperature and then mixing with colder water at the outlet to maintain a consistent delivery temperature to your home. This allows Cala to heat more water strategically—before peak demand periods, to avoid high electricity costs, when coordinating with your home solar system, and more.
Expect more from your water heater than just hot water.
Cala ensures you have ample hot water at regular times of peak usage.
Cala helps the electric grid use more intermittent renewable energy.
Cala reduces your utility bill.
Cala heats when your solar system is producing power.
Cala preheats a full tank of hot water before potential power outages.
We preheat a full tank of hot water before potential power outages.
Cala heats water when your local electricity is cleanest.
We preheat a full tank of hot water before potential power outages.
Cala avoids making noise and producing cool air at the times you decide.
We preheat a full tank of hot water before potential power outages.
FREQUENTLY ASKED QUESTIONS
What is a heat pump water heater?
What makes Cala different from other heat pump water heaters?
Does Cala save money by lowering the hot water temperature?
Does Cala require an internet connection to work?
Cala is coming fall 2025 in the Northeast.
Deliveries expand in 2026 throughout the country. Reserve your intelligent heat pump water heater today for water heating that is customized to your daily life and priorities.
