Climate control systems engineered for fire truck driver compartments, officer positions, and rear crew areas — delivering consistent, high-performance cooling and heating throughout the cab.
Danhard designs and manufactures HVAC systems for fire truck driver compartments, officer positions, and rear crew areas. Our systems deliver consistent, high-performance climate control to every seat in the cab.
The primary system architecture for fire apparatus. Ferrara platforms typically use three 12V combination units: one for the driver position, one for the officer position, and one for the rear crew area. This configuration ensures thorough climate control coverage for every seat in the cab — driver, officer, and rear crew all benefit from the same great cooling and heating performance.
Heat comes from engine coolant tie-in. We integrate directly into the fire truck's existing coolant loop to deliver warm air throughout the cab without requiring additional electrical power.
Cooling runs on a 12V compressor circuit. The 12V architecture is essential for vehicles that must be self-sufficient on long runs, operating reliably whether the truck is at station or on scene.
Engineered by Mark Nation, our ceiling-mounted air plenums deliver equalized airflow to individual louvers positioned at each crew member's seat. This design eliminates hot and cold spots in the cab that plague standard HVAC installations.
Most HVAC systems blow cold air with uneven velocity across the cab. Our plenums use a carefully designed air distribution path that balances pressure and velocity so every louver delivers the same volume and temperature of air. Crew members at different positions experience uniform comfort.
The plenum mounts in the cab ceiling and routes individual air supply lines to each crew position. This approach eliminates the need for bulky ductwork that takes up storage space. Crew members can open or close their individual louvers without affecting others in the cab.
Some fire apparatus manufacturers, including Pierce, use 125V shoreline-powered HVAC systems for certain applications. We offer evaporator configurations for rear crew bench seating that integrate with AC shoreline power sources for vehicles that have that electrical architecture.
While 12V systems dominate the industry for their self-sufficiency, 125V shoreline systems serve a role when the fire apparatus has a dedicated AC electrical system available. We design both approaches to the manufacturer's specifications.
Danhard developed custom defrost systems specifically for Ferrara fire apparatus. This capability addresses a need that had gone unsolved for two decades. As one Ferrara executive told us: "We've been asking for this for 20 years and no one's been able to deliver."
In humid conditions, windshields fog when cold air from the HVAC system hits glass that has condensation on the exterior. Standard defrost systems are ineffective because they cannot maintain consistent temperature separation between inside and outside air.
Our defrost systems manage humidity and temperature with precision controls that prevent moisture accumulation on the windshield. Fire apparatus crews need clear visibility in all weather conditions. Our systems guarantee that.
Fire apparatus operate in extreme conditions. Equipment runs at sustained load during long responses. Vibration from engine and road surface stresses every mechanical component. Our HVAC systems are built to withstand this environment.
Every coil and condenser uses tube-and-fin core architecture. Aluminum fins bond to copper tubes under controlled temperature and pressure. This construction provides optimal heat transfer, long lifespan, and resistance to vibration damage.
We specify rotary compressors instead of reciprocating designs. Rotary compressors operate smoothly with fewer moving parts, produce less vibration, and tolerate the constant duty cycle of fire apparatus better than reciprocating compressors. The result is longer compressor life and lower warranty claims.
95% of our components come from U.S.-based vendors. We control supply chain relationships and can guarantee part availability for warranty service. Sourcing domestically also ensures compliance with Buy American requirements that some fire departments enforce.
Ferrara fire apparatus had a reputation for poor cab climate control. Crews called them "the sauna on wheels." After adopting Danhard multi-zone systems with custom air plenums, Ferrara transformed into an industry leader in crew comfort. This shift became a key selling point for the company.
A RevGroup director initially approached our systems with skepticism. After seeing them in operation across a Ferrara fleet, he became an advocate. He now recommends Danhard HVAC to other vehicle platform managers within RevGroup. His conversion from skeptic to supporter reflects the proof our systems deliver.
Our fire apparatus HVAC systems carry a warranty claim rate consistently under 1%. This metric reflects engineering quality, component selection, and manufacturing standards. Low claim rates mean fewer emergency service calls and lower total cost of ownership for the fire apparatus manufacturer.
We provide free engineering consultation to every fire apparatus manufacturer customer. Our lead engineer brings 30+ years of specialty vehicle HVAC experience. We help optimize system design for your specific platform, crew compartment layout, and electrical architecture.
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