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Plumbing / Re: Plate exchanger
« on: March 06, 2014, 06:41:41 PM »
Pumping vinegar through usually works fairly well. If you are going to try just soaking the plate exchanger, a stronger acid such as an acid rinse product for dairy milking systems seems to do the job. I have not personally ever used CLR.
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Portage & Main / Re: p and m chip burner
« on: March 06, 2014, 06:25:16 PM »
Long haired,bearded,LIBERTARIAN and Proud of it
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Portage & Main / Re: p and m chip burner
« on: February 23, 2014, 04:20:20 PM »
My calculation shows a 25 ton load of 40% moisture hardwood chips at 80% efficiency (83% for the boiler -3% losses throughout the rest of the system) would be equivalent to 1560 gal of #2 oil in an 85% efficient oil boiler system. $900 a load isn't too bad. I burn a yard and 1/2 / day of mostly softwood chips in my P&M Enviro-500, heating 3000 sq ft house, 4800 sq ft shop, 300 sq ft office, + 4000 bd ft kiln in upstate NY. Since I have a sawmill, my fuel cost is about 4 hours of my time and about 5 gallons of diesel fuel (3 point hitch mounted Valby 260 chipper on 86 hp farm tractor) every other week all winter. I could sell these chips for 8-10 $/yd or the slabs for less $$ so there is lost revenue "cost" as well.Last year I estimated I offset over 3000 gallons of oil for about 100 hours labor and $300. of diesel; this winter,so far, I've already matched last year. 
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