HVAC · ventilation & heating

Ventilation and heating,
drawn in 3D and calculated.

Route supply and extract ductwork with real fittings, place air terminals, AHUs and fans, connect radiators, lay floor heating loops — then calculate flows, pressure drops and balancing, and size the whole network in one step.

Download the 7-day free trial Sample project

The ventilation of a two-storey office in realistic 3D: air-handling unit, supply and extract mains, branches with fire dampers, diffusers and grilles, the roof fan — Supply (red) and extract (blue) ductwork of both floors from one air-handling unit — VM V&P tab

Fittings as you draw

Bends, tees, reducers, shoes and transitions appear while you click, in true size, on standard round and rectangular series.

Calculated, not just drawn

Flows from the terminals, pressure drops, the critical path, fan pressure, damper presets and one-click sizing.

Floor heating after EN 1264

Zones laid with meander, double meander or spiral loops at the spacing the demand needs, with manifold presets.

Ductwork of a whole floor

The first floor's corridor mains with their branches to every office, the toilets' extract and the roof fan — each part a real 3D body with its system, size, flow and velocity.

First-floor ductwork in realistic 3D: supply and extract mains along the corridor, branches to diffusers and grilles — The first floor: corridor mains and branches

Ground-floor ventilation plan: ducts drawn with their outlines over the floor plan, with diffusers in every room — The same ductwork in plan, over the architecture

The plant room

The air-handling unit with its outdoor-air and exhaust ducts through the wall, silencers on the supply and extract, risers to the first floor and the heating pipes — detailed products with VMDETAIL High.

Plant room in realistic 3D: air-handling unit, silencers, supply and extract ducts, outdoor-air and exhaust ducts through the wall, heating pipes — Air-handling unit, silencers and risers

The calculation window over the ductwork: each system's flows, pressure drops and critical path — VMCALC: flows, pressure drops, critical path, balancing

Floor heating and radiators

Three manifolds feed the ground floor's offices and open offices; VMFHCALC checks each loop's output, floor temperature, length and pressure drop and gives the valve presets. Upstairs, radiators are joined to their mains automatically.

Floor heating loops of the ground floor in 3D, with the manifolds and the heating mains from the boiler — Floor heating loops, manifolds and mains

The floor heating calculation window: each loop's area, spacing, heat flux, output, floor temperature, length, pressure drop and preset — VMFHCALC: every loop checked after EN 1264

What it does

Ductwork

Round and rectangular ductwork (EN 1506 / EN 1505)
Automatic bends, tees, reducers, shoes and conical branches
Crossings, multi-crossings, Smart Move, Copy Branch (mirrored or turned)
Insulation, cleaning covers, flexible connections

Products

Air terminals, VAV terminals, dampers, fire dampers, silencers
Air-handling units, roof fans, boilers, pumps, valves
Device Connection: terminals joined to a duct in one pass
Any block turned into equipment with connection points

Heating

Flow / return pipes in one pass, at a set spacing
Radiators connected to their mains automatically
Floor heating zones, loops and manifolds (EN 1264)
Design flow temperature, downward losses, presets

Calculation & output

Flows, pressure drops, critical path, fan and pump pressure
Balancing presets, sizing with reducers, sound on 8 octave bands
Labels, flow arrows, legends, bill of materials
Openings, clash detection, IFC4 export

The commands

1VMDUCT
Draw the route; fittings appear as you click, in 3D.
2VMINSTALL
Place terminals, dampers, silencers, AHUs and fans from the product library.
3VMDEVCONNECT
Join the terminals to their duct, flexible at the end if wanted.
4VMFHZONE · VMFHCALC
Lay floor heating loops and check every loop after EN 1264.
5VMCALC · VMSIZE
Calculate the networks and apply the recommended sizes.

Free trial · 7 days

Try everything for 7 days, free.

Download VectorCAD, start it and choose “Start 7-day trial”. You get the whole program — 2D, 3D, LISP, PDF and the complete VectorMEP module for HVAC, plumbing and electrical — with no card and no account. When the week is over, enter a license key and carry on with the same drawings.

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An internet connection once to start the trial; then it works offline
Your drawings stay ordinary DWG files whatever you decide

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Ventilation and heating,drawn in 3D and calculated.