IntelliSize Water Heating Calc

With IntelliSize you can easily enter your custom specs for heating water and instantly view recommendations. You can even generate a spec-drawing for your water heater installation project.

About Intellihot

When Intellihot’s founder returned home from a 16-hour flight to find his water heater broken and his basement flooded, he didn’t just clean up the mess and call a plumber. He set out to reinvent the industry. No more tanks, no more leaks, no more wasted time and energy.

The result is the only American-built tankless water heater of its kind delivering instant, endless hot water for your home or business. It’s not just a better water heater. It’s a more efficient, intelligent water heating and delivery system. Powerful enough to handle the extreme loads of commercial and industrial applications. Precise enough to manage the unique demands of residential properties.