Choosing the right 12 volt heater for a side by side (UTV) requires balancing heat output, size, mounting options, and electrical draw. The table below summarizes five top options suited to cab heating, defrosting, or compact installations.
| Product | Key Feature |
|---|---|
| JEGS Auxiliary UTV Heater | High BTU (28,000 BTU equiv.), 260 CFM, 3-speed fan |
| Maradyne H-400012 Santa Fe | Floor-mount design, 13,200 BTU, 200 CFM, two-speed fan |
| Saihisday 12V Underdash Heater | Compact 4-port underdash unit for defrosting and heating |
| Sallurmose Upgraded Underdash Heater | Under dash mountable with speed control, energy-saving design |
| Bestol 12V PTC Car Heater | PTC ceramic element, compact, low power draw options |
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JEGS Auxiliary UTV Heater
The JEGS Auxiliary UTV Heater is described as delivering a high heat output with an emphasis on airflow. It lists 28,000 BTU equivalent and 260 CFM airflow, designed to move warm air quickly through small cabs. The unit features a compact footprint and a three-speed motor for variable airflow.
Installation notes indicate a mountable design with a mountable switch and dual front vents, which supports directional airflow to the windshield and occupants. The product is positioned for UTVs, trucks, vans and cars where available space is limited.
Electrical and thermal characteristics suggest the unit prioritizes rapid cabin heat and strong airflow, making it suitable for side by side cabs where quick defrosting and occupant comfort are priorities.
Maradyne Santa Fe Floor Mount
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The Maradyne H-400012 Santa Fe is a floor-mount automotive heater intended for durable installations. It lists 13,200 BTU per hour and 200 CFM airflow with a long-life motor and built-in two-speed control.
This floor-mount form factor is commonly used in utility vehicles and tractors where under-seat or floor placement provides secure mounting and direct cabin airflow. The unit requires 5/8″ fittings for coolant connections and draws about 6.0 amperes at 12 volts according to the supplied specs, indicating moderate electrical demand for continuous operation.
Its design emphasizes robust construction and sustained airflow for reasonably sized cabs, offering a balance of heat output and reliability for UTV owners seeking a permanent heater mount.
Saihisday 4-Port Underdash Heater
The Saihisday 12V Car Auxiliary Heater is a compact underdash heater featuring a powerful blower motor and four vent holes. It is intended for windshield defrosting, demisting and supplemental heating.
Operational details note a 12V system with an 8A
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This type of underdash unit is useful in side by sides where dash space is available and quick windshield defrosting is needed. The multiple vents allow for distributed airflow, while the compact profile supports tight installations.
Sallurmose Under Dash Heater
The Sallurmose Upgraded Under Dash Heater is presented as an energy-saving underdash option with included mounting brackets and a speed control switch. It is listed as suitable for trucks, minivans, excavators, harvesters and similar applications.
Key design points include support for underdash installation and a focus on lower power consumption while still offering useful heat and airflow. The included speed control allows for adjustable fan output to match occupant comfort and electrical limits.
As a compact underdash unit, this heater suits side by side owners who need a straightforward installation and variable fan speeds without large floor-mount hardware.
Bestol 12V PTC Room Heater
The Bestol 12V PTC Car Heater uses a PTC ceramic element and is available in various wattage options. The listed 12V 120W configuration emphasizes thermal stability, surface insulation, and mounting holes for easy installation.
PTC heaters are known for self-regulating temperature behavior and lower electrical complexity, making them a compact, low-maintenance choice for supplemental heating or windshield defogging. This model highlights durable wiring and an insulated surface for safety.
For UTV owners with limited electrical capacity or who want a small plug-and-play-style heater, a PTC unit offers simple heating with low ongoing maintenance and safety advantages inherent to ceramic elements.
Buying Guide: Choosing The Right 12V Heater For A Side By Side
This guide outlines the main factors to evaluate when selecting a 12 volt heater for a side by side UTV. Considerations are grouped by functional need and installation reality.
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Heat Output And Airflow
- BTU/Equivalent And CFM: Higher BTU-equivalent or CFM numbers indicate faster cabin warm-up and stronger defrosting. For small UTV cabs, moderate BTU with good CFM often works best for even distribution.
- Ramp-Up Time: Consider how fast the unit brings heat to the windshield—high airflow units typically defrost faster.
Mounting Type And Space
- Underdash Units: Compact and direct for windshield defrosting; suitable where dash space exists and you want a cleaner interior look.
- Floor-Mount Units: Often more robust and provide sustained heating but require more installation space and secure mounting points.
- Portable/PTC Units: Small, flexible placement and easier install but may produce less overall heat for very cold conditions.
Electrical Draw And Vehicle Capacity
- Amps At 12V: Verify your UTV’s electrical system can handle the continuous draw without overloading alternator or battery. High-output units may need more alternator capacity or dedicated wiring.
- Fuse And Wiring: Use appropriately rated fuses and wire gauge recommended by the manufacturer to avoid voltage drop and overheating.
Defrosting vs. Cabin Comfort
- Primary Defrost Need: Choose units with directional vents and strong airflow to the windshield for visibility-focused applications.
- Occupant Comfort: If warming occupants is primary, look for units that offer focused venting and sustained heat rather than only quick defrost bursts.
Durability And Environmental Exposure
- Sealed Components: UTV environments feature dust, moisture, and vibration. Prefer heaters with rugged housings and vibration-resistant mounts.
- Coolant Connections: For water-swirl heaters or coolant-fed units, check fitting sizes (commonly 5/8″) and corrosion-resistant materials.
Controls And Features
- Fan Speeds: Variable speeds provide flexibility between rapid defrost and low-noise operation.
- Switch Placement: Mountable switches or remote/LCD controls improve usability in side by sides where reachability is limited.
- Safety Features: Overheat protection, thermal cutoffs, and proper fusing reduce risk in mobile installations.
Comparison Perspectives
- Performance-Focused: Choose higher BTU/CFM units (e.g., JEGS) for fastest warm-up and strong airflow in enclosed cabins.
- Space-Constrained: Underdash options (Saihisday, Sallurmose) provide targeted defrosting while saving floor space.
- Electrical-Limited: PTC ceramic models (Bestol) offer safe, lower-wattage heating with simpler wiring for small batteries or older alternators.
- Permanent Install & Durability: Floor-mount heaters (Maradyne) deliver robust, long-term performance when permanent installation is acceptable.
Installation Tips
- Plan wiring runs to minimize voltage drop and protect with inline fuses at the battery.
- Mount vents to direct airflow toward the windshield for defrost performance.
- Confirm hose sizes and coolant routing when choosing coolant-dependent heaters; use proper clamps and fittings.
- Test the heater at low idle and higher RPM to ensure alternator and battery maintain voltage under load.
Maintenance And Longevity
- Periodically inspect mounting hardware, wiring, and vents for debris and secure attachment.
- For coolant-fed units, check hoses and fittings for leaks and age-related degradation.
- Keep vents and fan intake clear of mud and dust; replace or clean filters where applicable.