- STACK OUTLET: 20″ OD
- STEAM OUTLET: 6″ X 300#
- FLANGED
- HHW SUPPLY/RETURN: 6″ X 300#
- FLANGED
- NATURAL GAS: 2-1/2″ 150# FLANGED
- FUEL OIL SUPPLY/RETURN: 3/4″ NPT
- BLOWDOWN DRAIN: 4″ 150# FLANGED
- SYSTEM DRAIN: 1-1/2″ NPT
- ELECTRICAL: 2″ NPT
- CITY WATER SUPPLY: 2″ NPT

