Hi everyone. I bought my first diesel, a 2004 Accord, in October. Along with the keys came a remote controller which i thought it was for an after market alarm system. To make a long story short i found out that my car is equipped with an "Eberspächer" cabin heat unit. I have googled them and came to found that many people use this solution for diesels as well to compensate for the cold starts and long warm up time. I have not tested it yet (will be in 2 hours though, it`s 0° C), but in the commercial videos i have seen that you can turn this on to heat the cabin without the engine running, but i haven`t determined yet how battery consuming that is. Moreover there are two types of units; airtronic and hydronic, which differ in their operation and heating means: airtronic heats incoming air when hydronic heats up cooling fluid. I think i will have to give the previous owner a call and ask for information. Has anyone used this before or has relative experience?