I spent some time in the garage this Fall installing a Propex heater in SilVan. I used the smaller size, HS2000, so it would fit behind the passenger rear wheel well. This is the only spot where it would be out of the way of other storage, and have room under the van for the inlet and exhaust tubing.
The HS2000 is rated 6500 BTU/hr output, 60 CFM air flow, and 1.4 amp draw.
Van Specialties had installed a bare cabinet for the heater. The cabinet also holds up one side of the rear bed extension.
First item was to relocate the wiring location - a small error in communication with Van Specialties
I added a shelf for the heater, a cut-out to access the inlet and exhuast tubing, and a jack compartment. I varnished the interior and used left over CLD and MLV for soundproofing.
Ready to go back in the van
Almost done with the easy part
Routing the propane piping and inlet/exhaust tubing was the most difficult part of the job.
Here's all the plumbing under the van. I also added a mud flap to try to keep stuff off the plumbing.
The inlet tube is routed over the spare tire to keep it away from the vehicle exhaust and the heater exhaust.
All buttoned up and ready for the heat duct.
The ducting provided is pretty flimsy. I debated trying to protect it, but couldn't come up with a simple lightweight way to do it. The sofa bed is removable and I didn't want to build something in too much.
And finally, I found a spot for the lug wrench.
And the finishing touch - the supply vent. It can be swivelled to direct the air flow.
Overall we are pleased with the Propex HS2000. We have camped 3 nights with it, down to about 32 degrees. It is MUCH quieter than the direct-discharge Suburban we had in the past. It uses fuel at a very low rate. However, it remains to be seen how warm we'll be for really cold snow camping. It seemed to run a lot even at 32 degrees, and it didn't seem to heat up the air in the van as quickly as the old Suburban did. The Suburban was rated at 9000 BTH/hr output.