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Commercial Waste Oil Heaters / Re: heat exchanger rust
« on: September 25, 2017, 04:40:19 am »
The Clean Burn has been very reliable. Wish there was some way to recondition the heat exchanger to stop the surface rust. Thinking of a high temperature coating but that might not hold up either. The waste oil is free so I did to pay for propane. Thanks for all the input.