<html><head></head><body><div class="yahoo-style-wrap" style="font-family:verdana, helvetica, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">I have a factory in Michigan running 24/7 and being heated continuously except for May-Sept. I am operating 5 boilers. Boiler 1 fires, then Boiler 2 to support, then Boiler 3, etc. I am running Boiler 1 to max, then Boiler 2 to supplement with Boiler 1 still at max etc.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I attach the Boiler run hours. All boilers are of different sizes.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Can anyone explain what is going on? i expect more run hours. I am matching monthly loads fairly well.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">John R Aulbach</div></div></body></html>