Who We Are

At Heatworks, we’re meticulous about making things better. Products that improve the comfort of our homes, the quality of our lives and preserve our Earth’s precious resources: water and energy. That’s why we reinvented the way the world heats water.

Some companies are happy to stand still. To keep things the same, just because. They think, if it ain't broke, why fix it.

We never settle.

We don't believe in waiting or wasting, especially when it comes to water. That's how we developed Ohmic Array Technology. And that's why we will continue to heat water in the simplest, purest and most efficient way.

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Our Key Milestones

2006-2014 – 50+ Patents and Global IP
2014 – Microsoft Accelerator
2014 – Kickstarter campaign for MODEL 1 raises $435,000 in pledges and pre-orders; reached initial funding goal of $125,000 in under a week.
2014 – TechCrunch Disrupt NYC Runner-up
2015 – Shipping product since Q1 2015 (Heatworks' MODEL 1, MODEL 1X)
2015 – Retail distribution >1,700 Lowe's
2015 – $1.1M Revenue
2016 – “Works with Nest” Partner
2016 – Closed $5M Series A
2017 – Moved headquarters from Charleston to Mount Pleasant, SC
2017 – Launched Kickstarter campaign for MODEL 3 Water Heater


Meet Our Team

Jerry Callahan

CEO and Founder

An inventor at heart, Jerry founded Heatworks the day he realized the water heater he needed didn’t exist. Rather than buy an inferior product, he decided to find a better way to heat water. That has been his focus for the last 12 years. Now with over 50 combined patents, Jerry leads a team of heating, technology and plumbing veterans to continue to build Heatworks' family of products.

Jerry grew up on Cape Cod, MA, and studied naval architecture at MIT and the Stevens Institute of Technology. After attaining his MBA from University of Chicago, Jerry co-founded Blue Rhino, the world’s leading propane cylinder exchange company.

Mike Wieckowski

Chief Technology Officer

Mike was born in Buffalo, NY, and tinkered with electronics and computers since he was a little kid. He received his doctorate from The University of Rochester in 2007 and then spent three years as a post-doc at the University of Michigan in Ann Arbor. Mike came to Charleston to run a research lab developing underground radar systems and work on a few startups. That all changed when Mike bumped into Heatworks' CEO Jerry at a TechCrunch event. The rest is history!

Eric Doesburg

R&D and Manufacturing

Eric hails from Atlanta, GA, and is a proud graduate of both Clemson University (Bachelor's of Science in mechanical engineering) and the University of South Carolina (master's degree in international business). He has more than 25 years of experience in global operations, engineering management, mergers and acquisitions, organizational development, project management and supply chain management with expat stints in France, Germany, Poland and India. Eighteen of those years were with Molex, a market leader in interconnect technologies. Eric moved back to Charleston in 2014, and joined Heatworks to return to early stage technology development and commercialization - with the goal of total domination of the global liquid heating technology market. His responsibilities include manufacturing, engineering, lab, quality and supply chain. Eric is terrible at being idle and keeps active with his wife and two sons traveling, building stuff, reading, kayaking and playing and coaching lacrosse.

James P. Carroll

Director of Business Development

JP started with Heatworks in December of 2016 and is focused on building and leading B2B and e-commerce sales. He has over 20 years of sales and sales management experience in the high tech industry, most recently from home automation leader, Savant. JP lives in the Charleston area with his wife and black lab, Bella. In his spare time JP likes to golf, build things out of wood, ski and cook. His two children are grown up and are almost off his payroll.

Jack Callahan

Business Development Associate

Jack has been with Heatworks since 2014 and is a part of the business development team. He has two years of experience in this area of the company after starting with Heatworks on the production and process side of the product. In his current role, Jack provides information to customers by way of technical sizing and support, as well as account management and sales generation. Local to Charleston, growing up on Sullivan’s Island, terrorizing local police with his dirt bike, he earned a bachelor's degree in economics, marketing and management at the University of South Carolina. Jack lives on the peninsula of downtown Charleston and spends his free time playing golf, guitar, cooking and enjoying his time on the water.

Hamer Darby

Business Development Associate

Hamer grew up in Mount Pleasant, SC, and graduated from the University of South Carolina in history and political science. After graduating college, he worked for a large software company for three years doing customer service and account management. Hamer joined the Heatworks team in September 2016, handling incoming customer service calls. He has since partially transitioned to the business development team. In his free time, he enjoys playing golf and spending time in the outdoors.

Natalie Sadorf

Customer Support Manager

Natalie, our Philly girl, has been with Heatworks from the start. She is the manager of the customer support team and has been providing technical assistance to our customers since 2014. Natalie has spent over 11 years managing teams, coaching staff and bringing start-ups to life. She moved to a quiet island outside of Charleston to slow down. After a cup of coffee with Jerry, Natalie’s plans changed, and she joined the Heatworks team.

Anna Taylor

Customer Service/Technical Support Associate

Anna has been with Heatworks since 2017. She hails from Alexandria, VA, and made her way south via Winthrop University, where she received her bachelor's degree in psychology. A born problem solver, she has over 10 years of customer service and training under her belt. She lives with her husband and their little zoo in Summerville.

Melissa Verzwyvelt

Marketing Manager

A Louisiana native and self-professed multi-tasking queen, Melissa has been in the marketing and PR industry for 16 years. She has worked at ad agencies in three states, handled public relations for a city and launched successful campaigns for local start-ups as well as global brands like Sherwin-Williams and Cessna Aircraft. She grew up in South Louisiana, enjoys watching videos of cute kids and puppies, can wiggle her second toe without moving the others and was her class valedictorian. When not watching football on the weekend, Melissa enjoys spending time with her boyfriend, two kids and her three-toothed Chihuahua.

Kevin Hammer

Electrical Engineer

Kevin grew up in Mt. Pocono, PA, and received his bachelor's degree in electrical engineering from Penn State University. He worked for several years developing high power electronics in Pennsylvania before moving to Charleston in 2010, where he began working with a small company that specialized in ground penetrating radar and consulting for a few local startups. A need for change and a new challenge eventually brought him to the Heatworks' engineering team. In his free time, he loves to travel, and if he’s not somewhere new, you can find him building or fixing stuff around the house.

Jesse Flynn

Mechanical Engineer

Raised on a small island in the Caribbean, Jesse developed an early appreciation of water…and rum. After obtaining a Bachelor's of Science in mechanical engineering from University of Washington, he spent close to a decade involved in the design and manufacture of mobile devices. Looking for a change of pace from the typical corporate setting and an outlet for his interests in conservation and sustainability, Jesse joined the Heatworks team in 2017. In his free time, Jesse enjoys climbing, kiteboarding and camping.

Weston Catron

Software Engineer

Weston grew up in Greenville, SC, and started programming when he was 10 - developing websites, apps and countless other projects. He went to Furman University for one year before dropping out and moving to Charleston to work on his entrepreneurial ideas full time. After gaining a lot of experience in the startup scene and completing projects for various clients, Weston joined the Heatworks team in the fall of 2016. In what free time he has, he enjoys spending time with his girlfriend, playing guitar and dabbling in the local comedy scene.

Trey Jones

Engineering Lab Technician

Trey has been with Heatworks since 2014 and works in the lab on a variety of projects. Trey holds a bachelor's degree in mechatronics, as well as an associate degree in computer science. Prior to working with Heatworks, Trey was a sergeant in the United States Army, serving multiple tours of duty in Iraq. Trey heads up the RMA Department and assists in product manufacturing and process refinement. He was born, raised and now lives in Summerville, SC, just outside of Charleston, where he enjoys working out in his yard and experiencing what the Lowcountry has to offer.

Kristie Petersen

Office Manager

A native Long Islander, Kristie joined the Heatworks team in September 2016. She provides administrative support to the team, who fondly refer to her as “Girl Friday” because of the many hats she wears. Kristie has more than 11 years' experience in human resources, merger and acquisition integration's, corporate administration and corporate compliance. As a proud US Army family, and enjoys spending time with her husband, daughter and her mush of a white boxer, Sadie, in Summerville, just outside Charleston.