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 why we developed Ohmic Array Technology. And that's why we will continue to heat water in the simplest, purest and most efficient way.

Our Key Milestones

2006-2014 – 50+ Patents and Global IP

2014 – Selected as a Microsoft Accelerator participant

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 – Closes $5M Series A

2017 – Moves headquarters from Charleston to Mount Pleasant, SC

2017 – Kickstarter campaign for MODEL 3 Water Heater is successfully funded in pledges and pre-orders.

2017 – MODEL 3 Water Heater is selected as a CES 2018 Innovation Product Honoree in the Home Appliance Category

2018 – Tetra countertop dishwasher debuts at CES and is selected as an Editor's Choice Award product

2018 – MODEL 3 Water Heater is chosen for a 2018 Red Dot Product Design award

2018 – Tetra Countertop Dishwasher is selected as a CES 2019 Best of Innovation Honoree in the Home Appliance Category

2018 – Heatworks' patented Ohmic Array Technology is given the 2018 South Carolina InnoVision Technology Development Award

2018 – MODEL 3 Water Heater is chosen as a TIME Magazine’s 2018 Best Invention

2018 – MODEL 3 Water Heater is selected as a CES 2019 Climate Change Innovator Award

2019 – Heatworks wins the SC Launch Impact Award for 2019

2019 – DUO Carafe is selected as a CES 2020 Innovation Product Honoree in the Home Appliance Category

2020 – Heatworks is given the 2019 Charleston County Industry Impact Award in the Small Business Size category

Meet Our Team

Robert Brunson | Project Manager

Music has always played a major role in Robert’s life. His dad was in band and taught Robert how to sing and strum Beatles’ songs on his guitar. Thirty years later, Robert taught his own kids to play music using the Rock Band video game. But don’t challenge his family to a game; his daughter now plays seven instruments. Perhaps it was his appreciation for music that led Robert into a career of engineering and project management — in all of these situations, if one element changes, then there is an effect on other elements. Before joining Heatworks in 2019, he led the largest USAF Training System contract, valued at $179M, which included over 150 employees across 17 sites. Robert has two engineering degrees, his MBA, and PMP Certification. When not working, this “steak and potato” guy is an avid outdoorsman. He love hunting and fishing, restoring old cars (ask him about his ’67 Firebird), and spending time with his kids.

John Michael Burton | Senior Mechanical Engineer

John Michael is a Charleston local, born and bred. He grew up on Isle of Palms and Sullivan's Island before heading up north to Durham, NC, to get his engineering degree from Duke University. John Michael worked on heavy equipment and automated machinery before jumping into the startup world and falling in love with the fast-paced design. He put in a few years as a product-design consultant before joining Heatworks in 2019. John Michael and his wife live on the peninsula and spend their off-time traveling, being on the water, and reading good books.

Jack Callahan | Product Manager

Jack has been with Heatworks since 2014; first working on the production and operations side before moving to a business development role. In his current role, Jack is responsible for the strategy, roadmap, and feature definition for the MODEL 3. He also provides information to customers by way of technical sizing and support. Local to Charleston, Jack grew 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.

Jerry Callahan | Founder and CEO

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.

JP 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.

Hamer Darby | Territory Sales Manager - East

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 transitioned to the business development team. In his free time, he enjoys playing golf and spending time in the outdoors.

Dillon Jackson | Engineering Technician

A recent addition to Charleston and to Heatworks, Dillon was born in West Palm Beach, Florida, but grew up in a small village in Ohio. (Hello, cold winters!) He recently graduated from Youngstown State University with an AAS degree in electrical engineering technology. Five days after receiving his diploma, he decided to hang up his winter coat and move sunny Charleston to start his career. Dillon's goal is to obtain his BAS degree in electrical engineering locally while gaining experience working at Heatworks. In his free time, he loves to watch sports, soak up the sun, and enjoy the great food the area has to offer.

Lindsey Khuong | Customer Support Associate

Having called over 12 states home, it’s no wonder Lindsey wants to one day live in an RV and choose her destinations by closing her eyes and dropping a pin on the map. At Heatworks, she is one of the friendly folks you may speak with if you call our Customer Support Team and need help. Outside of work though, you better not mess with her — she is a doomsday prepper, enjoys archery, and honing her shooting skills at the gun range. Prior to joining our team, Lindsey provided technical support for several companies, and even managed an entire health system’s medical database. When not on the clock, you will find her cooking gourmet meals or baking for her family of four, redoing furniture (her last project was her son’s computer table), or caring for her two dogs and tortoise. 

Shafi Keisler | Director of Engineering

Overseeing the development and implementation of our patented Ohmic Array Technology, Shafi joined Heatworks as Director of Engineering in 2020. His eye for detail and impressive 27-year career in engineering, manufacturing, sales, distribution, and marketing, (including C-level positions and stents at NASA, Alcoa, and Japanese auto giant, DENSO) uniquely enables him to lead our growing team of engineers and technicians. Shafi has a B.S. in Electrical Engineering from Virginia Tech and an MBA in Finance from the College of Charleston. In 2000, he grew a company designing and manufacturing custom-engineered transmission systems from a garage operation to a multi-faceted industrial operation with 46 employees and revenue in excess of $65 million. (Ask him about his appearance on Speed Channel’s “Chop Cut Rebuild.”) After completing the MBA program in 2017, he received an Outstanding Student of the Year Award for initiating and developing the “MBA Task Force” which engaged 17 cohort members in paid consulting projects for firms including Mercedes-Benz Vans, Robert Bosch, and other local firms.

Greg Lyon | Engineering Consultant

Born with a keen interest in figuring out how things work, Greg grew up in New York tinkering with go karts, explosives, trumpets and sailboats. It's no wonder he holds a Bachelor of Science in Mechanical Engineering from Northeastern University. 40 years later, his name is on 29 patents, having spent most of his career involved in research and development for companies like GE, Leviton, Thomson Industries and American Standards Testing Bureau. In 2000, he founded a consulting firm dedicated to the development and deployment of disruptive technologies. He met Jerry in 2006 through a mutual friend and has been involved in the Heatworks technology and products since. Greg’s pastimes include music and water sports.

Chuck McCarty III | Engineering Technician

Growing up, Chuck was always fascinated with tearing apart his bicycle and reassembling it with new parts that he scavenged from his friends. Fast forward a couple of decades and with an Associate of Applied Science in Mechanical Engineering Technology degree from Youngstown State University, you will now find him in the Heatworks lab working to improve Heatworks’ products. Originally from Ohio, Chuck worked for an aftermarket engine performance product manufacturer, identifying and developing intercoolers and turbocharger system components. He then moved to a product development role on a team tasked with prototyping new exhaust systems for the Army. When not working, you will find Chuck either reading or working out at the gym.

Paul Menken | Customer Service/Technical Support Manager

They say people choose dogs that resemble themselves. It's no wonder, then, why Paul has a Greater Swiss Mountain Dog: Alert. Friendly. Bold. Hardworking. All qualities Paul, the most recent addition to the Heatworks team, has brought with him in this new role. Before joining us, he served in several customer quality assurance roles for more than 17 years with extensive experience in manufacturing, both in automotive electrical components and diesel engine cooling systems. Through originally from Illinois, Paul has enjoyed living in Charleston the last 10 years. When not walking his beautiful dog, his favorite hobbies include golf and yoga. Interestingly, he is also the head coach for the local women's roller derby team. (Go Low Country High rollers!)

Dave Modeen | General Manager

A native of Rochester, NY, Dave graduated to "empty nester" status in 2015 and jumped at the chance to move to sunny Charleston when he joined UEC Electronics. After serving as Director of Product Management, Dave was named President of UEC Electronics in December 2016. He has over 20 years of experience in new product development, operations, and engineering management in both the OEM and contract manufacturing arenas. Dave holds a BS in Mechanical Engineering from the University at Buffalo and an MBA from Rochester Institute of Technology. In his spare time, Dave enjoys playing golf, fishing, and exploring the Southeast US.

Don Spina | Lab Operations Engineer

After 20+ years in Colorado, Don and his wife decided that mountain life wasn’t the best fit for their last mile, and relocated to the South Carolina coast in 2016. Don’s experience in technology includes 13 years in technical roles at two of the top storage companies in the world, and 6 years in storage-industry startups. Don has an Associate in Specialized Technology Degree in Electronics, and brings test engineering experience to this new role here at Heatworks.

Anna Taylor | Customer 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.

Madison Traynham | Electrical Engineer

Madison is a coastal North Carolina native with a love for the outdoors and the beach. Having called Charlotte home for the past 10 years, it's no wonder that he jumped at the chance to live closer to the coast and joined the Heatworks team in Mount Pleasant, SC. In previous roles, he has worked designing embedded systems for industrial, consumer electronics, and startup environments. You can bet that Madison, his wife, and daughter will be out enjoying the water every chance they get.

Melissa Verzwyvelt | Director of Marketing

A Louisiana native and self-professed multi-tasking queen, Melissa has been in the marketing and PR industry for 20 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 two kids and her two-toothed Chihuahua.

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!

Jared Zeringue | Mechanical Engineer

Born in New Orleans and raised in Memphis, Jared has spent his life in the south surrounded by great food, friends and family. He received his degrees in mechanical engineering and business administration from the University of Memphis, and started his professional career in the oil and gas sector in Houston. In 2015, he moved to South Carolina, calling James Island home, where he worked for an international automotive manufacturer, before starting with Heatworks. In his spare time, Jared and his wife enjoy snowboarding trips out west, cooking Louisiana cuisine, and relaxing on the beach.