Boilers & Calorifiers BOT – Blow Off Tank (for Steam Boiler) HWB – Packaged Horizontal Hot Water Boiler VWB – Packaged Vertical Hot Water Boiler VWBG – Packaged Vertical Hot Water Boiler – (Galvanized Steel Shell) VWBC – Packaged Vertical Hot Water Boiler – (Sprayed Copper Inner Shell Lining) VWBF – Packaged Vertical Hot Water Boiler – (Uncoated Steel Shell) HSB – Packaged Electric Steam Boiler – (Horizontal Shell, Horizontal Elements) VSB – Packaged Electric Steam Boiler – (Vertical) VHSB – Packaged Electric Steam Boiler – (Vertical Shell, Horizontal Elements) CX – Boiler Flange Heater (Replacement) BFP – Boiler Feed Pump (for Steam Boiler) HCG – Horizontal Calorifier – (Galvanized Steel Inner Shell) HCC – Horizontal Calorifier – (Sprayed Copper Inner Shell) HCF – Horizontal Calorifier – (Uncoated Steel Shell) VCG – Vertical Calorifier – (Galvanized Steel Inner Shell) VCC – Vertical Calorifier – (Sprayed Copper Inner Shell) VCS – Vertical Calorifier – (Stainless Steel Shell) VCF – Vertical Calorifier – (Uncoated Steel Shell) CWCB – Circulation Heater (Packaged) CRP – Condensate Receiver Package (for Steam Boiler) SF – Solenoid Feed Mechanism (for Steam Boiler)