VZT Montér: HVAC ductwork

VZT Montér is a calculator for the guys on the tools who build ductwork by hand. Nothing extra: put in what you measured with a tape, get out what you write on the duct. FREE - Planar offset on spiral duct: filler length, diagonal, centre distance. The elbow radius is taken from the diameter automatically. - Rectangular duct: offsets for radiused, mitred and vaned mitred elbows. - Conversions: round to rectangular, flow, room flow requirement. - Calculation history: tap an old calculation and carry straight on with it. - Work log: one tap to log the hours for a day, set your rate and see the month's earnings. First 14 days free. - Backup to a file. Everything works offline, no sign-up. PRO (one-time purchase, no subscription) - Rolling offset and offset around an obstacle. - Miter cuts and sheet development with a 1:1 print template. - Route design and pressure losses. - Custom elbow angles. - PDF without a watermark, unlimited jobs. - Unlimited work log, site photos and a PDF hours report for the foreman. Day mode is deliberately black and white so you can read it in the sun. Night mode for the plant room. Big buttons so it works with gloves on. Built with installers, the way installers work. If something does not fit, write to info@deriverge.com and we will fix it.