Boiler System Diagram
Clean feedwater flowing back to a steam boiler is what keeps a building warm or a production line running through winter. Trace that loop from raw water to deaerator to boiler and back with ArcSite's boiler system diagram.
Key Features
This boiler system diagram includes:
- Raw water feeding the pretreatment equipment
- Makeup water line into the deaerator
- Feedwater pump between the deaerator and the boiler
- Boiler with upper and lower drums
- Steam line out to the load and condensate line back
- Blowdown valve off the upper drum
- Steam and condensate losses marked at the load
Condensate and makeup water both land in the deaerator, so the drawing shows the one spot where fresh water replaces what the load loses.
Fully customizable
Industry specific
Professional & accurate designs
Frequently asked questions
Is this diagram for a hot water boiler?
No. It shows a steam boiler with a deaerator and condensate return. For a hydronic hot water system, redraw the loop in ArcSite with supply and return piping to each zone.
Can I add more loads to the steam line?
Absolutely. Branch the steam line to more loads in ArcSite and route each condensate return back to the deaerator.
Can I use ArcSite for commercial mechanical jobs?
Absolutely! Mechanical shops map boiler rooms during a walkthrough, then price from that same sketch.











