Work it out.
16 calculators, gathered in a single workflow: find the requirement, dimension it, and verify. Enter your own values — the result updates live.
Need a cutting pattern or development template? Go to Templates.
What do you want to find out?
DirectoryChoose question
- § 06Which DS 452 class must my installation comply with?
- § 04How thick must the insulation be to hit a specific class?
- § 01How much heat does the pipe lose per metre — and what does it cost per year?
- § 05Which class does the thickness I already have meet?
- § 03Is the surface sweating — is there a risk of condensation on a cold pipe?
- § 02What is the U-value for a duct or tank wall with several layers?
- § 07How many m² of insulation and jacketing should I order for the job?
- § 08How many m³ of insulation do I need for a square duct?
- § 09How much less may the pipe lose if I tighten the DS 452 class?
- § 10How much does the temperature drop from start to end of the pipe section?
- § 11How much does the insulation save — and how quickly is the investment paid back?
- § 12How long before the water in the pipe freezes in frost weather?
- § 13How hot is the tank after X hours — and when does it reach the required temperature?
- § 14How thick should the insulation be so the cold pipe doesn't sweat?
- § 15How thick should the insulation be so nobody burns themselves on the jacket?
- § VCan I be taken through the entire insulation specification at once?
Step V — Directory
Be guided through the entire work process all at once — from pipe to finished spec.
Step A — Find requirement
Start here: which DS 452 class must the installation meet?
Step B — Size it
How thick should the insulation be — and what does the pipe lose?
Insulation thickness
How thick should the insulation be?
Heat loss from pipes
What does the pipe lose — and what does it cost?
Material consumption
How much insulation and jacketing do I need?
Channel insulation volume
How much insulation should be in the duct?
Condensation insulation of cold pipes
Minimum thickness so the cold pipe doesn't sweat
Contact protection
Minimum thickness so the jacket doesn't burn
Step C — Check
Check an existing installation: achieved class and condensation risk.
Energy class
Which class does your installation reach?
Dew point
Is there a risk of condensation?
Heat loss class comparison
What do I save by going from class X to Y?
Temperature drop in pipe with flow
How hot is the medium when it reaches?
Energy savings & reimbursement
What does the insulation save — and when is it paid back?
Freezing time for water-filled pipe
Hours before 0 °C — and before ice
Step D — Surfaces & tanks
U-value for layered, flat constructions.
Insulation tools
Sheet, duct and pipe: unfold into cutting patterns, build the pipe route in 3D, and unfold a whole box.
- The Unfolding Library45 shapesSheet metal shapes unfolded into cutting patterns, in millimetres and with an honest quality mark.
- Pipe route builder — 3DPipes in 3DChain pipe segments into a complete pipe map — with seams, overlaps and material totals.
- 3D-workshop3D · DXFThe shapes in space — with flat development, DXF for CNC laser and a cardboard guide.
Tools that work in all subjects
Maths and templates that work in every trade — and at school. Every tool shows the formula and the working with your own numbers.
- Pythagorasa² + b² = c²Find the missing side, set out a right angle, check whether a room is square, and find the space diagonal.
- Area and perimeterm²Rectangle, triangle, trapezium, circle and composite shapes — area and perimeter.
- Volume and surface aream³ · lBox, cylinder, cone, sphere, pyramid, prism, pipe and frustum — also in litres.
- Percent%Percentage of, how many per cent, percentage change, discount and VAT.
- Scale and ratios1 : 50From drawing to reality, area and volume to scale, the rule of three and dividing in a ratio.
- Unit convertermm ↔ mFrom mm to km, Pa to bar and kB to GB — with the unit staircase.
- Time calculations and the clockt : minTime between two clock times, add time, and 1.75 h = 1 h 45 min for the timesheet.
- Slope and fall% · ° · 1:xFall from level to level, in per cent, per mille, degrees and mm per metre — and the height difference.
- Material consumption including wastem² + %Boards, paint, battens at c/c spacing and packs — for a composite surface or a whole room, with waste.