Question Using Coolant?

[Texas Clodhopper]

Most likely a defective HX in your Oasis. I assume you could replace only the HX. Brazed plate HXs sometimes fail this way.

I talked to Brian at ITR, and he said it's cheaper to replace the unit because the labor to repair the HX is a killer.

 

[osuallen]

I talked to Brian at ITR, and he said it's cheaper to replace the unit because the labor to repair the HX is a killer.

I wondered if that would be the case. Do you have the Chinook or the CH50 and DM 12

 

[turbopilot]

The oasis uses a 3 layer flat plate heat exchanger (HX). There are several sets of the 3 layers stacked (6 if I recall correctly) . The HX contains independent passsages for engine coolant, Oasis fluid, and domestic water. If driving in the winter and you turn on the oasis burner, the engine will furnish most/all the heat via the engine coolant running through the HX and heat transferring to the oasis fluid across the plates. If you install an optional pump, you can have engine preheat from the oasis via the same but reversed process.

Interesting. I my three years owning a Class A Newmar I was not aware engine coolant made a pass through the HX too. What a complex system. What could go wrong?

 

[Texas Clodhopper]

I wondered if that would be the case. Do you have the Chinook or the CH50 and DM 12

CH50 and DM12