Proper Boiler Standby Storage Is Essential for the Longevity of the BoilerEssential for the Longevity of the Boiler Prevention of Corrosion during offline periodsPrevention of Corrosion during offline periods Preventative Maintenance, but Low MaintenancePreventative Maintenance, but Low Maintenance On going during standbyOn going during standby

Proper Boiler Standby Storage Is NOT Shutting off the boiler at the end of winterShutting off the boiler at the end of winter Draining the boilerDraining the boiler Something that is forgotten once startedSomething that is forgotten once started Costly or Time ConsumingCostly or Time Consuming

Why Wet Store Why Wet Store? Prevent Corrosion Prevent Corrosion Easier then dry method Easier then dry method Better for short storage period Better for short storage period Quicker startup Quicker startup Boiler always ready for cold snap Boiler always ready for cold snap Why Dry Store? Prevent Corrosion Prevent Corrosion More protection then wet method More protection then wet method Better for long storage period Better for long storage period No need to fire boiler during storage No need to fire boiler during storage

Reduce treatment levels and blowdown heavily 2 days prior Reduce treatment levels and blowdown heavily 2 days prior Increase bottom blowdown to remove mud Increase bottom blowdown to remove mud Cool and drain, then wash down and refill (optional) Cool and drain, then wash down and refill (optional) Fill boiler to header Fill boiler to header Add oxygen scavenger, phosphate and alkalinity booster Add oxygen scavenger, phosphate and alkalinity booster Fire boiler at low fire until steam begins to form Fire boiler at low fire until steam begins to form Close header Close header Fire boiler every 4 to 6 weeks to keep chemicals mixed and active Fire boiler every 4 to 6 weeks to keep chemicals mixed and active Wet Storage the Technique

Dry Storage the Technique Reduce treatment levels and blowdown heavily 2 days prior Reduce treatment levels and blowdown heavily 2 days prior Increase bottom blowdown to remove mud Increase bottom blowdown to remove mud Cool and drain, then wash down Cool and drain, then wash down Open all drain plugs and inspection ports Open all drain plugs and inspection ports Close heater and feedwater valves Close heater and feedwater valves Using a fan circulate air through boiler to completely dry Using a fan circulate air through boiler to completely dry Place trays of desiccate at 10# per 1000 gallons of volume Place trays of desiccate at 10# per 1000 gallons of volume Seal all drain plugs and inspection ports Seal all drain plugs and inspection ports