I posted this before under the topic of heating, but I thought it should go here as well since it's a part of my van build.
A couple months ago a decided to invest in something different to heat my van. It wasn't cheap, and it's not for everyone, but after much research I decided to buy the Webasto Air Top 2000 ST B; the B stands for gasoline engines.
I came across this very same unit in the early beginning of my van build, but decided not to buy it. The unit ran on diesel. Yes I thought of installing a small diesel tank under the van, but in the end decided against it.
Now a couple years later I came to realize they also made those units for gas engines. I found a place 300 miles from where I stay that sells and installs them. 300 miles and $1600 dollars later I had my Webasto heating my van.
$1600, I know, lots of money. That's why I said it's not for everyone. But I had the opportunity to get one and couldn't pass up the chance of having thermostatic controlled heat.
The unit brings fresh air for the combustion from the outside, and the exhaust is obviously also expelled to the outside. The air for the living area is recirculated inside only. I didn't want it to come from the outside as it's much more economic to reheat the air inside than to heat frigid air.
Here's a view of the unit from the underside of the van before it was sealed and after I sealed it tight.
And if you have good wifi here's the installation videos;
Here's the unit inside the van. Not much bigger than a loaf of bread;
And here's the unit covered. The hot air comes out on the right, and the intake is on the left.
All I have to do is to turn the dial and...I have heat. I can keep the heat at 68, 70, 72, 74, or anywhere in between. Basically I just set it and forget it. No more getting up in the middle of the night to turn the heat on if I'm too cold, or to turn the heat off if I'm too hot.
Here's the control dial;
I'm still working on some issues regarding having enough power to run the heater every night, especially living on the east coast with all the clouds, rain and snow.
I suppose living in less cloudy areas of the country would allow me to run the unit every night and still recharge the batteries during day. I'm working on it. Just need money and good weather.