Heating time is influenced by four main factors listed in diminishing order of influence:
- size of engine (coolant capacity),
- outdoor temperature,
- wind and sun.
The main factors are coolant capacity and temperature:
- A typical V-8 equipped car will stay warm (72° F inside temperature) for an 1¼ hour to 1½ hour when the outside temperature is at freezing.
- A large class 7 or 8 truck with 50 to 60 quarts of coolant will stay warm for considerably longer approaching 3-4 hours.
- How does the AUTOTHERM ERS system work?
- I run overnight in a sleeper cab and stop to rest for 3 or 4 hours. Is the AUTOTHERM ERS system able to keep the sleeper warm?
- Can I install the AUTOTHERM ERS system myself?
- How long does it take to install the system on a truck?
- How much fuel can the AUTOTHERM ERS system save me?
- If the system runs such a long time, won’t this run the battery down?
- Why do you call AUTOTHERM ERS a system?
- Do I need my ignition key to run the AUTOTHERM ERS system?
- How long will AUTOTHERM ERS systems keep a stationary truck warm?
- Why is the AUTOTHERM ERS system called an energy recovery system?