Booster Coils
Booster coils are compact and efficient, the perfect combination for duct-mounted installations.Coil Replacement Company most commonly provides booster coils for comfort heating applications, as well as industrial settings that require precise temperature control. Designed for convenient installation, booster hot water reheat coils are available with a variety of casing configurations, including fully flanged, slip & drive and side/end plates. Also referred to as reheat coils, these compact hot water units are engineered to "boost" or reheat air after it passes through a primary cooling or heating coil, helping HVAC systems maintain precise, comfortable temperatures in tight duct spaces where a full-size coil won't fit.
CRC assigns a dedicated engineer to review, visit, measure, or consult (virtually) by analyzing your exact requirements. CRC then generates drawings, performance evaluations, and quotations – while taking responsibility for your booster coil and/or product solution. We deliver unparalleled service, allowing the mechanical contractor and end-customer to focus on their core assets and property management responsibilities.
Booster Coil Product Details
Booster and reheat coils are typically built as low-profile, 1- or 2-row designs, allowing them to be installed directly in ductwork without the space demands of a full air-handler coil. CRC's booster coils are custom-engineered around your exact face dimensions, GPM/flow requirements, and casing style (fully flanged, slip & drive, or side/end plates), with copper tube and aluminum fin construction available to match your existing OEM specifications. Because every unit is built to order, CRC can match or improve upon the performance of the original coil being replaced — please confirm exact specifications with your CRC engineer during the quote process.
Booster Coils Across Industries
Because booster/reheat coils solve a very specific problem — adding precise heat back into ductwork after air has already been conditioned — they show up across nearly every industry CRC serves:
- Commercial Properties and Mechanical Contractors — reheat applications in VAV (variable air volume) systems to maintain tenant comfort zone-by-zone.
- Education, Government & Municipality — classroom and public-building comfort heating where duct space is limited.
- Manufacturing & Equipment and Food & Beverage — precise temperature control in process areas and environments with strict humidity/temperature tolerances.
- Medical & Pharmaceutical — tight temperature control for cleanrooms and patient-care environments.
- Electrical, Gas & Nuclear Energy — facility comfort and process heating in energy production environments.
Not sure which configuration fits your facility? See how CRC supports your industry →
Ensure Long-Lasting Performance
To ensure long-lasting performance while increasing the lifespan of your hot water booster coils, CRC offers many different coating options that provide an additional level of protection against corrosive environments including, but not limited to, automotive paint houses, chlorinated pool facilities, coastal sea areas, industrial manufacturing plants, locations with high sun exposure, medical/pharmaceutical environments, and restaurant kitchens.
Contact us for assistance in selecting from our available coatings, including ElectroFin® E-coat, Endura® Coatings (750+ Technologies), Infinigard, phenolic, and UV Topcoat.
Why not give CRC a call now … and let’s work together to find the customized solution that is right for you!
Frequently Asked Questions About Booster Coils
A booster coil is a small, low-profile hot water coil installed in ductwork to add precise, supplemental heat after air passes through a primary coil. Typically built as a 1- or 2-row unit, booster coils are ideal for comfort heating and industrial applications requiring tight temperature control in limited duct space.
"Booster coil" and "reheat coil" are largely interchangeable terms in HVAC. Both describe compact, duct-mounted hot water coils that reheat conditioned air to maintain precise zone temperatures, most commonly used in VAV (variable air volume) systems and comfort heating applications across commercial and industrial facilities.
Booster coils are installed directly in ductwork, usually downstream of a heating coil in VAV terminal units, air handlers, or standalone duct sections. Their compact, low-profile design makes them ideal for tight mechanical spaces where a full-size heating coil won't fit but precise temperature control is still required.
Booster coils are available in several casing configurations, including fully flanged, slip & drive, and side/end plate designs. Each configuration determines how the coil mounts into existing ductwork, allowing custom and OEM-replacement booster coils to fit a wide range of installation requirements without major duct modification.
Protective coatings like ElectroFin® E-Coat, Endura®, Infinigard, phenolic, Insitu®, and UV coatings shield booster coil tubes and fins from corrosive environments such as coastal air, chlorinated pool facilities, and industrial or medical settings. Coatings extend coil lifespan significantly versus uncoated coils exposed to the same conditions.