Hottgenroth Software AG

Address
Hottgenroth Software AG
Von-Hünefeld-Str. 3
50829 Köln
Germany
Telephone+49 221 709930
Fax+49 221 70993301
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About us
Hottgenroth Software was founded in 1996 by Karl-Heinz Hottgenroth. In the mid-90s, "Energy Advisor" established itself as the market leader in Germany. The software for energetic building planning has become an important tool for planners, architects, energy consultants and craftsmen. In 2002, Hottgenroth took over ETU Software GmbH, which expanded the product range to include TGA as well as data acquisition software for the implementation of VDI 3805. Already since April 2015, the product range also includes the CAD software RUKON for ventilation system planning. Today, additional locations throughout Germany as well as in Austria strengthen the Cologne software house: currently, the group of companies has more than 200 employees and over 60,000 customers.
In 2021 the Hottgenroth Software GmbH & Co. KG was transformed into an AG (stock corporation) in order to accommodate the strong growth of the company. The Hottgenroth Group wants to face the future together with its customers: actively, with foresight and sustainably.
The Hottgenroth Group develops commercial, technical and CAD software as well as Internet applications on the following topics: energy efficiency, construction and administration as well as building services engineering and design.
The HottScan 3D-roomscanner broadens the Hottgenroth group´s portfolio by another ground-breaking new approach to 3D room modelling. The HottScan room scanner aquires any desired geometry with precise laser measurements.
The products are intended to planners, architects, craftsmen and trading companies.
Our product groups
Our application areas / Solutions
Downloads
Keywords
- BIM
- CAD
- Planung
- Software
- Simulation
- Gebäudeerfassung
- Energieberatung
- Heizflächenauslegung
- E-Rechnung
- KI
Our Products

ETU-Simulation
ETU Simulation stands for the simple calculation and comprehensible visualization of the building model including the building-coupled plant technology. The standard-compliant evaluation of the building and building services, validated according to ASHRAE Standard 140-2017, can be performed with worldwide climate data. The hourly calculation of heating, cooling and humidity loads enables a meaningful energetic consideration and optimization calculation for all types of buildings.
Simple and fast building simulation (validated according to ASHRAE standard 140-2017)
- Calculation of the thermal behavior (incl. humidity) of buildings in an hourly simulation based on VDI 6007.
- Evaluation of rooms, zones and buildings
- Individual adaptation of prefabricated utilization profiles and extensive building material catalogs incl. ecological factors (e.g. from ÖKOBAUDAT)
Economic efficiency
- Life cycle calculation for existing elements in the simulation
- Calculation of economic efficiency incl. mixed financing and inflation rates
- Profit calculation according to annuities, net present value and terminal value method
Documentation & Presentation
- Output of editable reports
- Flexible output of values and diagrams in image formats and Excel with period selection
- Comprehensible presentation of results for consultations and presentations
Summer thermal protection
- Derivation of summer thermal protection from VDI 6007 according to DIN 4108-2 No. 8.4
System simulation
- CHP, heat pump; heat generator with oil, gas and biomass; PV, solar thermal energy
Cooling simulation
- Calculation of cooling loads of buildings, zones or rooms according to VDI 2078
- Calculation of cooling loads and effects on buildings, zones and rooms
- Manufacturer data & climate data:
Included in delivery are selected climate data of Germany at certain
year and time points from MeteoNorm and TRY from the German weather service.
In connection with a valid software maintenance or user contract also
own climate data, which comply with the requirements, can be read in.
The calculations in the respective applications can be carried out manufacturer-specific
or manufacturer-neutral. Neutral manufacturer data sets are included.
Specific manufacturer data are only available with a valid software maintenance contract or
user contract.
Planning in 3D model
Integrated CAD software:
- Draw floor plans as drawing basis (PDF, DXF, DWG and other image formats) or draw freely
3D view for visual control after each input - Define rooms, room stamps and zones simply with a mouse click
- Flexible result output and visual preparation of building models
- IFC interface for importing architectural models

HottScan 3D-Raumscanner / HottScan 3D-roomscanner
3D room measurement in 2 minutes! A complete package of superlatives: Easy on-site building survey including software. Capture rooms, measure them with dimensionally accurate floor plans, plan them and transfer the geometries to CAD.
The laser scanner records rooms with precise laser measurements at the touch of a button. It forgets no detail and creates a complex 360° panoramic image of a room in 2 minutes. Inaccessible areas in rooms and forgotten dimensions were yesterday. The included modeling software supports you in designing - even room edges that are hidden behind components. Moreover, no dimension can get lost.
HottScan Room Modeller includes:
- Hierarchical project management
- Few buttons, fast orientation
- Easy modeling from the first person perspective
- Automatic and manual alignment of the scans (horizon)
- Printable volume evaluation
- Export of mass data in CSV format
- Geometry export DWG/DXF format with layer structure and Collada format with textures
Interfaces:
Export of mass data and quantity evaluations via CSV. Room geometries can be transferred to other CAD programs via Collada and DXF/DWG (e.g. bathroom planning, room design, building planning).

Kaufmann - The future solution
The perfect commercial solution for small and medium-sized businesses (SMEs) and craftsmen covers all operational processes from order processing to invoicing. Start your office digitization now, easily and inexpensively!
The digitization of processes in trade and planning are the key points of a contemporary commercial industry software, mobile working via cloud service a must. Beyond quotations and invoices, the tradesman software manages order processing, merchandise management, pre- and post-calculation, communication with customers and on-site work via apps. Mobile cloud solutions for time recording and customer service are an essential addition to the tradesman.
Basic functions
Sales
- Quotation management: Quotation incl. quotation tracking,pre-calculation
- Invoicing: order, delivery bill, invoice, cash sales invoice, payment on account, OP management, dunning process
Purchasing
- Purchase order system: Price inquiry, purchase order, incoming invoice, OP management
Customers, articles and personnel management
- Addresses: Customers and suppliers
- Articles: unlimited number, article sets
- Personnel: employees and wage groups, time recording
Interfaces (included in connection with valid maintenance contract Kaufmann )
- ZUGFeRD electronic invoice exchange, KFE|Connect, DATANORM 4 and 5, GAEB 90 / 2000 / XML, SHK-Connect, IDS-Connect, UGL / UGS, Mareon, DATEV / SEPA, TAPI
- Quantity takeover from HottCAD
HottM@il
- Postage-free document dispatch incl. read confirmation
Forms
- Easy adaptation to your letterhead by means of a wizard
Output
- Printouts as PDF, Excel, RTF, e-mail dispatch, etc.
Multi-client capability (can be added as an option)
- Management of multiple trades with access to common master data

PV-Planer
3D model-based simulation software for planning, consulting and design of photovoltaic systems
Basic functions
- Integrated CAD software: for planning buildings with graphical allocation of roof areas
- Quick calculation of electricity yield and profitability
- Import of PDF and DWG/DXF and IFC files
- Plant planning on 3D building model, roof plans with dimensioning and wiring diagrams
- Visual shading simulation as planning aid
- Extensive and editable module and inverter database incl. filter function
- Profitability calculation (incl. risk analysis and variable financing calculation)
- Import of load profiles with CSV files
- Calculation of the energy yield of a photovoltaic system according to DIN V 18599-9
- Manufacturer & climate data:
Included in the scope of delivery are selected climate data of Germany at certain
year and time points from MeteoNorm and TRY from the German weather service. In
In connection with a valid software maintenance or user contract, also own climate data
own climate data, which comply with the requirements, can be read in.
The calculations in the respective applications can be carried out manufacturer-specific or
manufacturer-neutral. Neutral manufacturer data sets are included. Concrete
manufacturer data are only available with a valid software maintenance contract or a user
available.
Advantages of 3D PLUS (only with current versions)
+ Incl. data exchange to further 3D PLUS modules
+ Transfer of already drawn projects
+ Uniform project management

ETU Planer
The "ETU Planner" was developed as a multi-user capable complete solution especially for the requirements of TGA planners and SHK companies and enables a multitude of technical calculations in one software: Continuous project processing, starting with the graphical capture via extensive calculations and simulations up to verifications, parts lists, tenders and execution plans. Time-saving planning is achieved by using a common data model in the individual modules. Values entered once are made available to the user across standards for a wide range of calculations, saving you as a planner multiple data entries.
Your software solution for consulting, planning and execution. The packages with integrated CAD software HottCAD are tailored to your specific needs and are suitable for:
- comprehensive consulting for building projects and renovations
- standard-compliant planning and calculation of HVAC systems as well as PV systems from the from preliminary planning to implementation planning and as-built analysis
- error-reduced execution with the help of collision checks and detailed
representations - manufacturer-independent or -specific
Scope of services:
- Integrated CAD software: HottCAD
- Heating load calculation according to DIN/TS 12831-1:2020-04
- Radiator and heating surface design
- Underfloor heating (according to EN 1264)
- Laying plan with 3D representation
- Pipe network heating with 3D representation
- Pipe network drinking water systems with 3D representation
- Hydraulic balancing of new / existing buildings
- Planning of residential ventilation systems
- Quotation system incl. interfaces UGL and GAEB
- U-value calculation
- GEG calculations for residential and non-residential buildings
- Cooling load calculation according to VDI 2078
- Solar thermal energy
- PV simulation
- Wall and ceiling heating in 3D model
- Pipe network waste water with 3D model
- Bid soliciting
- Ventilation concepts for non-residential buildings
- Sound insulation calculation according to DIN 4109
- Construction supervision
- Building simulation according to VDI 6007
- Summer thermal insulation
- System simulation (e.g. CHP and heat pumps)
- Incl. implementation planning for ventilation systems (RUKON)
- Visual collision tests with breakthrough planning
- Calculation of pressure loss, temperature & acoustics
- Detailed mass excerpts & assembly plans