Trade pack Coming soon

Heating

Heating zones, pipes and heat output: your own tools for heating installations, practised on a simulated greenhouse complex with a boiler, combined heat and power, pipe-rail heating and grow pipes.

Who it is for

Drafters, modellers and engineers who draw or calculate heating installations in Revit, in greenhouse horticulture or elsewhere.

Tools you build

Pipe length per system and per zone, as a list or a CSV for Excel
Find open ends: pipes that are not connected to anything
Check velocity and diameter against your design rule
Find a wrong piping system type
Flow and heat output per zone at a glance

The final list comes with the lessons.

An example

Which pipes run faster than 1.0 m/s? On the simulated greenhouse complex this script finds exactly the zone where a header pipe was drawn too small.

VelocityCheck.pushbutton/script.py

from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Plumbing import Pipe

doc = __revit__.ActiveUIDocument.Document
MAX_VELOCITY = 1.0  # m/s, design rule for steel pipes

for pipe in FilteredElementCollector(doc).OfClass(Pipe):
    v = pipe.get_Parameter(
        BuiltInParameter.RBS_PIPE_VELOCITY_PARAM).AsDouble()
    v = UnitUtils.ConvertFromInternalUnits(v, UnitTypeId.MetersPerSecond)
    if v > MAX_VELOCITY:
        zone = pipe.LookupParameter("Groep").AsString()
        dn = pipe.get_Parameter(
            BuiltInParameter.RBS_PIPE_DIAMETER_PARAM).AsValueString()
        print("{}: {:.2f} m/s at diameter {}".format(zone, v, dn))

Output on the simulated model

Afd 2 - Groep 3: 2.09 m/s at diameter 25 mm

"Groep" (zone) is a project parameter of the practice model, which uses Dutch names. Checked against the Revit API 2025 documentation; not yet run in a real Revit.