Features
Drawing and calculation
- On every device, no installation. Opens in the browser on computer, tablet and phone; not tied to a single computer.
- Calculation while you draw. No "Calculate" button to wait for; diameter, velocity and loss update with every line.
- Automatic diameter with its reason. The program picks the diameter. A "why this diameter" line names the governing limit.
- Errors shown in place, fixed in one click. The code check runs while you draw; most fixes are a single button.
- No hidden limits. Every limit is shown with the code name and page. Pick the region and that distribution company's rules apply.
Documents
- Sheets and documents ready. Calculation table, isometric, sheet PDF and DXF, bill of materials, appliance notification form and Excel.
Survey, site and customer
- From survey to quote. Guided photos and video, measuring on photos, rooms from photos to plan, survey report and quote; the customer signs the quote on the phone.
- On site. Tightness test record and declaration PDF, signed handover report, status link for the subscriber, yearly service reminders.
Approval and verification
- GazPlan Onay. Submit directly from the program. Correction notes are pinned on the sheet; resubmission is free; then appointment and site check.
- Public QR verification. An approved project is verified with its number and code at gazplan.com/dogrula; no personal data is shown.
Draw your project free now
✓No installation✓No licence fee✓No credit cardSign up in a minute and send your project for approval within minutes.
Coming soon
In development; no dates given.
- Mobile apps: iOS and Android, in store review.
- Remote survey by phone: the customer films the home via a link and a draft plan is produced; room scanning on LiDAR phones.
- Automatic piping route suggestion.
- Online credit payment: price set (1 credit 1,000 TRY + VAT), card payment opening soon.
- Mobile signature.
- Subscriber data filled in automatically: depends on agreements with distribution companies.
Guides
- How to Draw a Natural Gas Installation ProjectStep-by-step drawing order for a Turkish natural gas installation project: service box, meter, pipes, appliances, isometric, title block, checks.
- Natural Gas Pipe Sizing Calculation, Step by StepNatural gas pipe sizing for Turkish projects: appliance flow, diversity, pressure drop formula, velocity limits, ζ and height losses, worked example.
- Is a Gas Project Required for Boiler Replacement?Is a gas project required when replacing a combi boiler in Turkey? What the specifications say on alterations, plus checks for output, type and flue.
- Gas Project Approval Requirements: Sheets and DocumentsWhat a Turkish natural gas project needs for approval: sheet order, title block fields, calculation sheet, material list, documents and revisions.
- Gas Flue and Ventilation Rules: A, B and C TypeTurkish natural gas flue and ventilation rules: A/B/C appliances, 1 m³/kW room volume, 150 cm² vents, 2.5 m flue pipe, roof clearances, TS EN 13384.
- Remote Site Survey with Photos for Gas ProjectsRemote photo survey for a natural gas project: shot list, A4 sheet for scale, labelling, transfer to the plan, and why photo sizes are approximate.