Add floors, then add appliances to each floor. Set the CFH demand and EL distance (feet from meter, including fittings) for each appliance.
Step 2 — Meters & Circuits
One meter per unit or zone. Each circuit is one continuous pipe run from the meter. Assign appliances from Step 1. Use ↑↓ to order circuits — order affects trunk accumulation. All meters feed a single gas service entry.
Step 3 — Sizing Results
Complete Steps 1 and 2 to see results
Riser Diagram
Assign fixtures to circuits to generate diagram
Text Output
COMPLETE STEPS 1 AND 2 TO GENERATE OUTPUT
Preliminary design only. Verify with a licensed engineer or plumbing contractor before construction or permit submission. EL including fitting allowances is the designer’s responsibility. CFH = nameplate input BTU/HR ÷ 1,000 — not efficiency-adjusted output. Sizing per IFGC 2021 §402.4.1 Longest Length Method / NJ UCC Fuel Gas Subcode 2021. Natural gas: 1,000 BTU/CF at standard conditions (SG 0.60). CSST per Table 402.4(15); includes 4 × 90° bends and 2 end fittings. Green Stories LLC is not a licensed engineering firm.