We'll be in touch soon. Air intake noise suppression add-on. Combustion air noise suppression add-on. Fuel line tap add-on for Transit vans. Full details in the description below. Email me when available. Add to wishlist. Share this product. Description Additional information. Heater unit SmarTemp digital controller with remote temp sensor built-in Universal medium-duty fuel tank standpipe Fuel pump with wiring harness Fuel line with required fittings and fuel filter Mounting plate with foam gasket and bolts Wiring harness 1.
Unboxing Video of an EVO 40 heater only - add-ons not shown in this video. Fuel Line Tap Add-On. Additional information SKU Related products. Close this module. Vented Heater. Heating greatly lowers the relative humidity RH in the van. There is no risk for carbon monoxide poisoning. Vented heater Webasto, Espar, Propex, etc. Non-Vented Heater. Heating greatly increases the relative humidity RH in the van water vapor is a product of propane combustion! There is a high risk for carbon monoxide poisoning a window or fan MUST be opened to vent the carbon monoxide.
Non-vented heater Mr. Buddy and such. Condensation and Moisture in a Van. Why it happens and how to control it. Read More.
Van Size. Van Selection. Insulation Type. Insulation Guide. Carbon Buildup Prevention. Insulated Window Covers. Winter Vanlife. Interior Layout. Van Tour. Espar M2-B4L. Espar S2-D2L. Espar M2-D4L. Webasto Air Top Dimensions. Dimensions in mm. Click to enlarge. Espar S2-D2L Dimensions.
Forward, under the passenger seat. Take our van tour. Centered or at the back. Combustion Pipes Length. More length increases air restriction, which can result in carbon buildup issues. The manual mentions 5m without silencer, 2m with exhaust silencer.
However, Tech Webasto still recommended we keep it below 2m, silencer or not. Combustion Pipes Bending. Each bend increases air restriction, so does a sharp bend.
In other words, a straight line is better! Exhaust silencer. A silencer adds quite a lot of air restriction. Personally, we decided not to install an exhaust silencer. But many people have them and they're fine Exhaust Dumping. Exhaust must not be dumped under the vehicle; the exhaust pipe must end outside the vehicle edge. Carbon monoxide is lighter than air and will pool under the floor, eventually making its way inside the van.
Exhaust constant downward slope. Try to route the exhaust in a constant downward slope. Otherwise it creates low points where water can accumulate and increase air restriction. Water vapor is a product of combustion see next requirement. Exhaust drain hole s. Try to avoid low points. Otherwise water will accumulate in each low point and increase air restriction.
Water vapor is a product of combustion! Not convinced? Without drain holes, all this water would clog the pipe. Fuel Pump Location. Install the fuel pump as close as possible to the fuel tank. To ensure the pump can prime the line and operate as it should. Fuel Pump Orientation. Install the fuel pump oriented per owner's manual. The following picture is an extract of the Webasto manual, consult the Espar manual if applicable.
Clamps for fuel line. Use fuel hose clamps only. Worm gear clamps do not provide uniform sealing pressure, and as a result air bubbles might form on the low-pressure side between the fuel tank and the pump. We personally tried that and didn't notice much difference. This noise is heard mostly outside, not inside. NOTE: A exhaust silencer adds air restriction. Because we initially had carbon buildup issues, we removed the silencer, and we have not re-installed it to this day.
That being said, we know plenty of people with a silencer that don't have any issues. It also acts as an air filter. NOTE: The intake silencer doesn't add much air restriction, and we personally have it installed in our Webasto system. NOTE: The cabin fan noise is constant white noise and even if it's quite loud, we honestly don't really mind it.
Lean Burn. A lean combustion not enough fuel in the air-fuel mix happens when the heater is used at a lower altitude than it is programmed for. According to Tech Webasto , a lean combustion does not damage the heater , but it results in slightly less heat.
A lean burn is kind of hard to identify actually, it's similar to a clean burn. Clean Burn. A clean combustion perfect mix of air VS fuel happens when the heater is used at the altitude it is programmed for. A clean burn is the best compromise between the amount of heat produced and the pollutants soot generated.
A heater that burns cleanly requires less maintenance. A clean burn produces a minimal amount of white fumes coming out of the exhaust. Rich Burn. A rich combustion too much fuel in the air-fuel mix happens when the heater is used at a higher altitude than it is programmed for.
It can also happen when there is too much air restriction in the exhaust exhaust too long, no drain holes, too many bends, silencer, etc. A rich combustion produces soot. The soot deposits in the combustion chamber and in the exhaust and can become extremely hard a. A rich burn produces dense, darker fumes coming out of the exhaust. A very rich burn condition will sometimes produce small explosions that's the extra, unburned fuel suddenly igniting. Exhaust too long. No drain holes on low point.
Sharp bend or too many bends. No constant downward slope. Heater fired up for less than minutes. Heater running on "Low" for too long. Before shut down, "boost" it for 10 minutes. Adjust your heater for high altitude and leave it there at all time.
If your heater has automatic altitude compensation, you have no adjustment to perform. At very high altitude let's say 7,ft and up , try not to let your heater run on "low" even if it's adjusted for high altitude.
In most cases, carbon buildup issues could have been prevented. Santuario El Rosario, Mexico. We had to start the heater that night Automatic Altitude Adjustment. Manual Altitude Adjustment. Webasto Rheostat. Buy on Amazon. At this point, your heater should be connected electrical, fuel, etc.
The rheostat should be connected to the pigtail labeled as "User Potentiometer" ours was located near the heater itself. If you're using the MultiControl HD, disconnect it. OK let's do this! Using any electrical wire, connect the CO2 calibration wire to your system ground. This can be, for example, your negative bus bar. It should be located near the extremity of the harness far from the heater unit itself. Or turn it up to for very high altitude around 10,ft.
This will fire up the heater. Wait a few minutes. The LED on the rheostat will eventually begin to flash. Go to the next step. Or for very high altitude adjustment around 10,ft. Keep the heater running for 3 minutes. The procedure is over! Let the heater run for an extra 10 minutes this is just so it reaches a high temperature and stays clean then turn it off.
At this point, a Webasto dealer would analyze the exhaust gas to make sure the air-fuel ratio adjustment is correct In our case, there is no way to tell if the procedure was successful or not.
Gotta have faith! Time will tell! According to Tech Webasto , a lean combustion does not damage the heater, so there is no need to change the adjustment back to sea level.
We made the high altitude adjustment in , and since then we have been running our heater adjusted for high altitude at all times even at sea level. We didn't notice the reduced output, and we believe that a leaner combustion actually helps prevent carbon buildup as discussed with Tech Webasto. It means that if the Webasto is unplugged, or if the main power is turned off, the high altitude adjustment is not lost. The high altitude adjustment remains until it is manually adjusted back to sea level altitude.
Connect the CO2 calibration wire to ground. Turn the heater control knob to When the LED on the rheostat begins to flash, turn the control to , and keep the heater running for 3 minutes. While the heater is running, remove the CO2 calibration wire from ground.
For example, we set a timer so the heater stops an hour after we go to bed, then runs for an hour in the middle of the night, and then starts again an hour before we wake up.
This minimizes the cycling and the duration that the heater spends on LOW. Remember that higher elevation makes the carbon buildup problem worse. Do not use your heater for less than minutes. This is to let the heater reach a high temperature and clean itself.
Temperature sensors are best located at shoulder height in a central location:. Buy on eBay. The controller includes an integrated room temperature sensor. Use a small flat bit to pry the back of the MultiControl HD away pry all around. The MultiControl HD will reboot. Don't let go! You have to keep the connection until the end of the procedure or you'll have to start over that's the hardest part!
Don't be shy, select all 21 of them! Note: The "Service" menu also has a bunch of other options. So be careful not to mess with them unless you know what you are doing! Change heater Adjust min-max duration Permanent mode Cancel ventilation Temperature range Show room temperature a cool feature Unibox set Undervoltage shutdown Unlock heater careful with that one Base configuration.
Thanks to Marc B. The procedure will be slightly different if you've got a different van Sprinter, ProMaster, etc or a different heater Espar , of course, but the general principles remain the same. Time Spent. Electrical System. Remove the 2 screws in the front:. Remove the 2 screws in the back:. Good to know. Mount Plate. Looking on top:. We made our own mount plate, but it can be purchased.
See "Material" section. This is an "after" photo. If we had to start over. Install the heater on the mount plate exhaust, intake, fuel line and bolts. Rust Prevention. Installation Requirements. You made it! Ready to fire up! Not so fast… we emptied the fuel tank in order to lower it, right?
There is no need to manually fill the fuel line. However, expect around 2 to 4 false starts before the fuel line is primed before the fuel reaches the Webasto heater. The longer the fuel run between the fuel tank and the Webasto, the longer it takes for priming. It takes about 2 minutes for the abort sequence to kick in. Once it kicks in, the heater stops pumping fuel, and the combustion fan goes full speed to evacuate the excess unburnt gas from the combustion chamber.
Let it do its thing. After a false start, the controller flashes to indicate an error; it has to be reset before it can be fired up again.
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