Fueling around

Webastos are set up as slave units and controlled though climate control system. The exception is with Cat engines. The engine can command for heat as well.

We use Thermo xxx or Proheat Mxxx.

My Espar problem is either a thermosensor system or the plumbing. Too cold to work on truck these days. I miss the timer mode, but can work around it. I leave for lunch every day so the truck warms again.

If you have an alarm or auto start with an extra channel that can control the Espar. Tap into pin 7 on the control pad and trigger a start with a ground pulse.

Dr. Evil

Thats not true at all. If you are going to have an ESPAR, you MUST have good batteries. If its really cold, you dont have to run it for the full 2 hours. The only time my truck didnt start, was when it was -43, and the heater ran for 2 hours. And that was with suspect batteries.

Just my experience with it.

Erska

Well, in here, the Eberspächer manual says that 30mins should be enough to warm the engine coolant to 50(120F) celcius degrees, and it is if the heater has enough power.

Fueling around

Just started a build for Denver Airport. CNG coaches with Webasto. Hope these are programmed correctly.

Fueling around

On extra cold and windy days 30 minutes was not enough. I preferred to get an hour or 90 minutes. On a regular cold day less than an hour was fine.
No matter the temperature, I noticed 30 minutes was about the minimum to help with starting.

The other trick is to watch your driving time after running the Espar. If I didn't run the truck for an hour then a evening on the battery charger was insurance to keep the batteries topped.

Starting a cold truck at -30°F after a full 2 hours of Espar let me know if the batteries were fully charged.

Tate

Just wondering, whats your regular cold day? 30 minutes in 0C weather is enough to get the grid heaters to stay off. Still took a while to get heat from regular driving, so I just left the heater on. I've been running it for 90 minutes as of late, and gets the cab plenty warm, and registers on the gauge. Haven't had any issues of being hard to start due to low batteries, but I haven't needed to run it lately when its been -20C yet.

Fueling around

Extra cold is -30°C (-22°F) and that annoying 25 kph (15 mph) wind that blows down from Alberta.
Regular cold is -20°C (-4°F) and that annoying 15 kph (10 mph) wind from Alberta.
Sunday was a balmy day at -5°C (23°F) and a very annoying 35 kph (22mph) wind. I plugged in the block heater for about the equivalent of 30 minutes with Espar. Grid heaters still cycled for many seconds.

Results may vary if you don't have a pesky wind and can actually keep more heat in the engine and under the hood.