Coldmaster Universal 12v Heater for Car Under-Dash CM-432B-H 13,700 BTU 359 CFM Automobile Interior with Blower Speed Switch - Ideal Cars Heaters for Vehicle Regular & Small Size Car & Truck

The Coldmaster CM-432B-H is a 12V auxiliary car heater designed to integrate into a complete vehicle HVAC system for reliable cabin heat in classic and custom applications. This unit must be connected to the full system, including coolant lines, compressor, condenser, refrigerant hoses, and related components, in order to function properly. It is not intended for standalone operation. This heater connects directly to the vehicle’s engine coolant lines to generate heat, making it a dependable solution for vintage vehicles where factory heating systems are limited or no longer present. It is specifically suited for cars and vehicles manufactured between 1920 and 1990, supporting classic restorations, hot rods, and custom builds. For vehicles using electric compressor kits, a 100-amp or higher alternator and a battery rated at 100 amps or more are required to support proper operation. Electrical capacity must be verified before installation to ensure system performance and safety. Housed in durable high-impact plastic, the CM-432B-H is built for long-term use while maintaining a compact footprint. The unit measures 14 1/2" L x 11 1/4" W x 6 1/4" H, allowing for under-dash or custom mounting configurations depending on vehicle layout. Black louvers provide a clean, understated appearance suitable for classic interiors. Installation requires careful measurement and adherence to the included instructions. Vehicle-specific modifications may be necessary depending on application. Professional installation is strongly recommended to ensure proper fitment, system integration, and safe operation. Always review specifications and confirm compatibility prior to purchase.

• 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝗛𝗲𝗮𝘁𝗶𝗻𝗴 𝗨𝗻𝗶𝘁: This heater is designed to operate only when fully connected to a complete vehicle HVAC system, including coolant lines, refrigerant hoses, compressor, condenser, and related components. It will not function as a standalone unit. System Connection Required
• 𝗘𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗮𝗹 𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗺𝗲𝗻𝘁𝘀 𝗳𝗼𝗿 𝗘𝗹𝗲𝗰𝘁𝗿𝗶𝗰 𝗖𝗼𝗺𝗽𝗿𝗲𝘀𝘀𝗼𝗿 𝗞𝗶𝘁𝘀: Electric compressor applications require an alternator rated at 100 amps or higher and a battery of 100 amps or more to ensure proper performance and system reliability.
• 𝗖𝗼𝗼𝗹𝗮𝗻𝘁 𝗟𝗶𝗻𝗲 𝗛𝗼𝗼𝗸𝘂𝗽 𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗱: This heater must be connected to the vehicle’s engine coolant lines to produce heat. Proper routing and secure connections are essential for correct operation.
• 𝗖𝗹𝗮𝘀𝘀𝗶𝗰 𝗩𝗲𝗵𝗶𝗰𝗹𝗲 𝗙𝗶𝘁𝗺𝗲𝗻𝘁 (𝟭𝟵𝟮𝟬–𝟭𝟵𝟱𝟬): Designed for installation in cars and vehicles manufactured from 1920 through 1950, making it an ideal heating solution for classic, vintage, and restoration projects.
• 𝗙𝗼𝗹𝗹𝗼𝘄 𝗜𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻𝘀 & 𝗩𝗲𝗿𝗶𝗳𝘆 𝗠𝗲𝗮𝘀𝘂𝗿𝗲𝗺𝗲𝗻𝘁𝘀: All included installation instructions must be followed carefully. Check measurements prior to purchase to confirm proper fitment. Professional installation is recommended for best results.
• 𝗧𝗿𝘂𝘀𝘁𝗲𝗱 𝗕𝗿𝗮𝗻𝗱 𝘄𝗶𝘁𝗵 𝟯𝟬+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗔/𝗖 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Coldmaster is your go-to for specialized A/C systems. We don’t just sell - we engineer. Whether it’s a 12v car air conditioner or a full electric ac kit for a car, you get expert support, proven reliability, and unmatched quality every time.