Install and Improve
Heat Pump Water Heater Systems,
Minimizing Costs and Maximizing Sustainability.

Our Values

Quality
We deliver low-cost high-performance systems that
lower first costs, energy bills, and carbon footprints.

Collaboration
We embrace open-minded teamwork to
support customers and partners achieving project objectives.

Community
We share insights, lessons, and best practices to
create scalable solutions that build resilient communities.

Our Services

Leveraging extensive field experience and expertise in water heating equipment, system designs,
and control technologies, we tailor our services to meet the unique needs of every project.
We serve both commercial and residential buildings, with a special focus on central heat pump water heater systems for multi-family properties.

  • Installation: Delivery quality installation that follow design specifications.

  • Commissioning: Ensure systems to provide a dependable hot water supply and operate at high efficiency.

  • Maintenance: Perform maintenance and repairs to extend equipment life and lower utility bills

  • Electrification: Provide affordable alternatives to natural gas water heaters.

About Us

Our team has decades of experience in installing, maintaining, improving, and researching hot water systems.

Larry Weingarten brings more than 50 years of hands-on experience in installing, repairing, and servicing hot water systems with a strong focus on efficiency and longevity. As a seasoned general contractor, he has worked extensively in the field, troubleshooting and refining water heating systems to ensure top-tier performance. His deep practical knowledge extends to sustainable building practices and innovative energy solutions, making him a leader in the industry. With a passion for education, he has also shared his expertise through writing and training, helping others understand the intricacies of water heating technology. His commitment to practical, long-lasting solutions makes him a trusted professional in the field.

David Chapman has practical expertise in installing and commissioning heat pump water heaters. With a strong background in system performance assessment and troubleshooting, he ensures every installation is done with precision and efficiency. His experience spans a wide range of heat pump water heaters and system designs, where he focuses on seamless integration, advanced controls, and reliable operation. Whether diagnosing issues, improving performance, or implementing sophisticated designs, David is committed to delivering high-quality services.

Yanda Zhang is a leading expert in energy-efficient water heating systems, specializing in advanced control technologies and system optimization. He has nearly two decades of experience in multifamily applications, developing high-performance system designs and supporting Title 24 building energy efficiency standards advancement.