Proper Boiler Standby Storage Is

1. Proper Boiler Standby Storage Is • Essential for the Longevity of the Boiler • Prevention of Corrosion during offline periods • Preventative Maintenance, but Low Maintenance • On going during standby

2. Proper Boiler Standby Storage Is NOT • Shutting off the boiler at the end of winter • Draining the boiler • Something that is forgotten once started • Costly or Time Consuming

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

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

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