TiSoft Heating Design

TiSoft Heating Design is a professional HVAC heating design program used by mechanical engineers for comprehensive heating system design – from heat loss calculations (per room and whole building) to radiator and underfloor heating design, pipe network sizing and layout, and support for boilers, heat pumps, fan coils, and domestic hot water systems. Version v26.0 continues TiSoft’s legacy of engineering excellence, offering fully automatic calculations based on European standards (EN 12831, DIN 4701) and intuitive CAD-based layout tools. Whether designing a simple residential boiler system or a complex commercial heating network with multiple zones and heat emitters, TiSoft Heating Design delivers the accuracy, efficiency, and documentation that modern HVAC engineering demands.

???? Primary Users

This professional HVAC design software is designed for:

  • Mechanical Engineers & HVAC Designers designing heating systems for residential, commercial, and industrial buildings.

  • MEP Consultants & Engineering Firms performing heat loss calculations, radiator/underfloor heating design, and pipe network sizing.

  • Contractors & Installers optimizing system layouts and generating material take-offs.

  • Energy Auditors & Building Performance Specialists assessing heating loads for energy efficiency retrofits.

  • Architects & Building Designers integrating heating system requirements into building design.

⚡ Key Features & Capabilities

???? Heat Loss Calculations

Room-by-Room & Whole Building:

  • Transmission heat losses (walls, windows, roof, floor)

  • Ventilation/infiltration heat losses (air exchange rate)

  • Heating load (kW) per room for emitter sizing

  • Compliance with EN 12831 and DIN 4701 (automatic, no manual table look-up)

Input Data:

  • Building envelope geometry (U-values by construction, area)

  • Indoor design temperature (by room use: living, bath, office, etc.)

  • Outdoor design temperature (location-based or user-defined)

????️ Heat Emitter Design (Radiator & Underfloor)

Radiator Sizing:

  • Select from manufacturer radiator database (panel, convector, column, fan coil)

  • Corrected heat output (ΔT mean, flow rate, connection arrangement)

  • Automatic radiator selection (based on calculated load)

Underfloor Heating (UFH):

  • Pipe spacing, loop length, and circuit assignment

  • Floor construction (screed, tile, wood) – heat output per m² (W/m²)

  • Manifold and zone valve placement

???? Pipe Network Sizing & Layout

Pipe Sizing:

  • Flow rate per circuit (l/h, l/s)

  • Pressure drop (friction + fittings) per pipe segment

  • Pipe material library (copper, steel, PEX, MLCP)

  • Automatic balancing (pre-set valves) or variable speed pump selection

CAD-Based Layout:

  • Draw pipe network on imported floor plan (DXF / DWG)

  • Automatic riser, branch, drop layout

???? Heat Source Selection

Boilers:

  • Gas, oil, biomass, electric – capacity (kW), efficiency, domestic hot water priority

Heat Pumps:

  • Air‑to‑water, ground‑source (brine‑to‑water) – bivalent point, supplementary heater

Solar Thermal:

  • Collector array area, storage tank volume

Fan Coils:

  • Chilled water / hot water – heating capacity at specified flow/return temp

???? Domestic Hot Water (DHW)

  • Daily draw profile (residential, hotel, gym, office)

  • Storage tank sizing (liters) and recovery rate (kW)

  • Circulation line heat loss & pump sizing

???? Reports & Material Take-Off

  • Heat Load Summary: Room-by-room + whole building

  • Radiator / UFH Schedule: Type, dimensions, output, location

  • Pipe Sizing & Pressure Drop: Critical path, pump head required

  • Bill of Materials (BOM): Pipe, fittings, valves, insulation, emitters

  • Export to PDF, Excel

???? What’s New in Version v26.0

  • EN 12831‑1:2024 (European Heating Load Standard) – Fully implemented with latest room‑by‑room method

  • Heat Pump Integration – Bivalence point & supplemental heater sizing

  • E‑CAD Live Link – Update pipe network when floor plan changes in AutoCAD/BricsCAD

  • Cloud Manufacturer Libraries – Pull radiator, boiler, heat pump data from major brands

  • LEED / BREEAM Reporting – Heating system energy input & efficiency (for green building certification)