Hydronic Heating and Cooling Systems, Reliable Comfort

Improving hydronic system efficiency starts with regular maintenance and modern components. Upgrading to variable-speed pumps, condensing boilers, and high-efficiency heat exchangers can greatly reduce energy use. Integrating building automation controls can also optimize loop temperatures and equipment staging for long-term savings.

Upgrading to a condensing fire tube boiler can significantly increase system efficiency while reducing energy costs. These boilers recover heat from exhaust gases, achieving higher thermal efficiency than traditional cast iron designs. They also feature a smaller footprint, lower operating weight, and greater design flexibility — ideal for both retrofit and new construction projects.

For condensing boiler systems, stainless steel or polypropylene flue materials are typically recommended. These materials meet UL standards and are designed to resist corrosion from condensate. The best choice depends on the specific boiler application, such as emergency generators, condensing, or non-condensing systems.

Current heat exchanger designs allow for lower approach and pressure drop to increase system energy efficiency by lowering loop temperature and pump head requirements. Existing heat exchanger performance may be compromised due to fouling, dirt or debris clogging plates, or leaks. Performance can be improved by installation of a new plate pack with no piping changes and minimal downtime.

Water-cooled heat rejection using open cooling towers, closed-circuit cooling towers, or adiabatic dry coolers have lower energy consumption, smaller footprint, and lower sound levels than air-cooled systems.

Choosing the best cooling tower replacement depends on several factors, including existing steel supports, electrical service, piping layout, sound requirements, and architectural constraints. It’s also important to consider load, energy efficiency, loop temperatures, and total installed cost. Havtech can help evaluate and specify a system that fits your site conditions and performance goals.

Yes. Many existing vertical stack fan coil units can be retrofitted or upgraded without extensive infrastructure changes. Options include replacing internal components or the entire chassis while keeping the existing cabinet in place. Havtech offers low-profile, custom-sized fan coil solutions that fit within your existing space for a faster, more cost-effective upgrade.