What Is the 2026 DOE High Efficiency Water Heater Rule?

The DOE’s 2026 high efficiency water heater rule—sometimes called the “gas water heater ban”—is coming fast. Learn how Intellihot’s tankless, commercial-grade water heating solutions already meet the new standards.
The Cost of a Legionella Crisis

A healthcare facility lost close to $400,000 due to a Legionella-prone system. The case study offers several takeaways.
Low Loss Header Design

An engineer explains the difference between operational efficiency and thermal efficiency in the context of tanks and tankless water heaters.
Theory of Diversity

An engineer explains the difference between operational efficiency and thermal efficiency in the context of tanks and tankless water heaters.
What is a Thermal Battery?

Thermal batteries are heat-storage devices. They can convert electricity to heat energy, and store it for later use.
Operational Efficiency: Tank vs Tankless

An engineer explains the difference between operational efficiency and thermal efficiency in the context of tanks and tankless water heaters.
Testing Intellihot’s Delivery Rate Claims

A 97-room hotel in Miramar, FL put Intellihot’s tank-competitive delivery rate claims to test. Here’s what they found.
Forever Chemicals in Heat Pumps. What You Should Know:

Some heat pump water heaters have been found to have PFAS or forever chemicals. Here’s everything you need to know about the risks.
Heat Pump Water Heating is a Big Part of DOE’s Plan to Decarbonize.

Heat Pump Water Heating in DOE’s plan to decarbonize
This Columbus Hotel is Projected to Save $31K With One Simple Swap.

Columbus Hotel is Projected to Save $31K with One Swap.