Hydronic Heating & Chilled Water

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  • States: NC, SC, VA
  • Summary: Amtrol hydronic and chilled water products are designed to increase efficiency of non-potable, closed HVAC systems.
  • Details
  • Industry / Applications
  • Steam Services Offered
Extrol hydronic expansion tanks effectively maintain positive pressure in closed hydronic heating systems. These tanks range in size from 8 to 3963 gallons, and up to 300 PSIG ASME certified.Air separators separate and remove entrained air from fluids by creating a low velocity vortex.Air & dirt separators remove both entrained air and dirt particles from fluids in closed loop, heating and chilled water systems.Buffer tanks add capacity to improve temperature control for chilled or hot water applications, reduce cycling, and provide consistent operation.Compression tanks offer maximum pressures of 125 and 150 PSIG and maximum operating temperatures of 450 degrees Fahrenheit.


In a closed loop heating system or cool water HVAC system, expansion tanks limit pressure by absorbing fluid as it expands. By using compressed air, an expansion tank maintains system pressures, accepting and expelling the changing volume of water as it cools and heats. Proper sizing ensures that the system will not exceed critical pressure limits.
Commercial Plumbing
Carotek offers a variety of Steam System Services to ensure your Thermal Systems (Steam/Hot Water) are operating at peak performance.  These services help reach your goals of maximizing energy efficiency, process efficiency, safety, and reliability.

Whether it is for Industrial heating or cooling, Commercial HVAC, Domestic Hot Water, Humidification, Equipment Washdown, or Water Pressure Boosting, Carotek offers the expertise, products, and services to assess your needs and provide cost effective solutions.  We have partnered with industry leading manufacturers such as Armstrong International, Grundfos, Shannon Global Energy, Intellihot, and others to bring you the best product and service results.

We offer

  • Decarbonization Roadmaps
  • Energy Audits
  • Thermal Utility Assessments
  • Detailed Thermal Design Engineering
  • Steam Trap Surveys
  • Steam Trap & Hot Water Monitoring
  • Steam System Management (Steam as a Service)
  • Thermal System Training - both online and in person

Review these services and contact us for more information.