"Burning them hot for a few minutes before shutting them down" smacks of running an engine hard after hours of underloading. Good practice IMO if better methods are not employed. My Wabasto always runs plenty hot as it's an on and off heater. I remember shopping for the heater and the Wallas having a "throttle" to enable it to run on low flame I considered an advantage. But maybe the Wabasto is not hot enough as my supplier advised me to use kerosene after 800hrs running dirty diesel. But the Wallace and Wabasto are very different. At night my wife would probably prefer the Wallace as it's quieter.
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Eric
North Western Washington State USA
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