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Got one unit running. Indicator light in the image is the flame detector light, used to show that it's on. It really puts out some heat, smokes during startup, then no smoke.....

Hmmm...how about the valve pictured above?

Does anyone have a source for the control valves? The TM suggests to replace if gummed up, but I can't even find an NSN for them...

Worked on three units today, they all have gummed up or clogged fuel valves. The electrical works well. I'm trying to clean one, if not successful, I'll have to look for a new valve.....

You are welcome Eric. Keep us posted on any progress, I hope to fire mine up later today. You will also need the interconnecting cable with mating connectors. I will have some extras, so let me know your needs when time comes.

Eric, the control box wiring appear to be the same for the different heaters. The box shown above has extra controls for mechanical shutters to control the air flow from an external blower, which was part of the M109 system. The diagram is posted below. Note that the box is not grounded or...

Eric, the pump is called out in the parts manual and shown here. The heater is the one used in the xm757 and the NSN is 2540-00-113-4180 (model 10530A24). The blower, pump and igniter all should come on when in start mode. The pump has a built-in filter but there is also one more in the line...

Setting up to test and gain confidence in the fuel burning heater. So far I have the blower and pump under control, still need to plumb up the pump to a fuel source. I like the fact that it can be used as an independent system and produce heat without the engine running....