Introduction
The trades Heating and Sanitary form a central component of Mechanical, Electrical and Plumbing (MEP) systems and are
crucial for the energy efficiency, operational safety and economic viability of buildings. We plan heating and sanitary systems for multi-family houses, public buildings and complex construction projects – compliant with standards, economical and with focus on permanently safe operation.

Professional MEP planning is particularly important for larger residential buildings, municipal projects and demanding existing building measures crucial to minimize technical risks and ensure smooth operation

Classic Planning Services in Heating and Sanitary
This generally includes the following planning services according to HOAI:
– Service phases 1 – 9 (basic evaluation to facility monitoring)
– Heat load calculation according to DIN EN 12831
– Pipe network calculation heating and drinking water
– Drinking water calculation according to DIN 1988-300
– Dimensioning of circulation systems
– Development of economical and effective route concepts
– House connection planning
– Definition and planning supplement for interface trades
– Creation of slot and breakthrough plans
– Collision planning with all planning participants / trades
– Creation of final tender planning documents and schemes / circuit diagrams
– Creation of tenders (VOB/C)
– Participation in awarding and construction supervision
– Existing condition analyses and renovation concepts
– Variant studies and economic comparisons

Heating Planning – efficient and future-proof

Planning Priorities
Heating planning is carried out considering:
– Building Energy Act (GEG)
– Funding eligibility
– System temperatures (e.g. low temperature / heat pump)
– Hydraulic balancing and system operation
– Load profiles and real usage requirements
– Actual space and installation requirements
– Public legal requirements and restrictions
– System type considering economic viability in regular operation

Typical Systems in Project Business
– Central heat pump systems
– Hybrid systems (e.g. heat pump + peak load boiler)
– District heating supply
– CHP systems
– Process heat
– Low-temperature heating systems

What matters in practice
– correct heat load determination per usage unit and usage area
– correct definition of framework conditions for building tightness
– coordinated design with HVAC systems / air exchange rates
– economical dimensioning (avoiding oversizing)
– stable hydraulic systems even with large pipe lengths
– coordinated control technology
– consideration of operating states (partial load / peak load)

Sanitary Planning – Focus on Drinking Water Hygiene

Planning according to current standards
Planning is carried out according to:
– DIN 1988 (especially DIN 1988-300)
– DIN EN 806
– DVGW regulations
– TAB requirements
– as well as other national / EU regulations

Planning Priorities
– demand-oriented dimensioning of drinking water systems
– ensuring circulation
– avoiding stagnation
– compliance with temperature requirements
– material selection and corrosion protection
– design of risers considering simultaneity
– prevention of contamination / residue formation
– consideration of noise and fire protection requirements

Typical Systems
– Drinking water installation in multi-family houses
– Circulation systems
– Pressure boosting systems
– Wastewater systems
– Rainwater systems
– Grease and oil separator systems
– Lifting stations
– Backflow protection

Special Features in Multi-Family Houses (MFH)
Planning in multi-story residential construction has special requirements:
– simultaneity and realistic load consumption
– design of risers and distribution networks
– shaft and route planning
– integration into architecture and structural engineering
– fire protection requirements for pipe routing
– consideration of user behavior and operation

Planning in Existing Buildings during Renovations
Renovation projects require differentiated consideration:
– integration into existing systems
– system separation for old installations
– limited space conditions
– adaptation to existing pipe networks
– implementation during ongoing operation

Interfaces and Coordination
Planning is carried out in close coordination with:
– Project management
– Architecture
– Structural planning
– Electrical specialist planning
– Fire protection planning
– Outdoor facility planning
– Building physics planning
– Utility network operators
– Municipal drainage companies
– and other participants
Especially for complex construction projects, early coordination is crucial to
avoid planning conflicts, construction delays and additional costs.

Economic Efficiency and Life Cycle
In addition to investment costs, the focus is on:
– operating costs over the entire service life
– maintenance effort and accessibility
– energy efficiency
– long-term operational safety

Typical Risks without Specialist Planning
Without qualified MEP planning, the following often occur:
– oversized or inefficient systems
– inadequate drinking water hygiene
– hydraulic problems in operation
– increased energy consumption
– inadequate fire and noise protection retrofitting
– insufficient wastewater ventilation and deaeration
– inadequate system separations
– high or low flow velocities in the systems
– additional costs and planning errors in the construction phase
– up to prolonged construction stops

Why commission an MEP engineering office?
– standards-compliant and auditable planning
– secure basis for tendering and awarding
– minimization of construction and operational risks
– economically optimized systems
– relevant for larger multi-story and special buildings anyway

Are you planning a project in the MEP / heating and sanitary field?
We support you in planning and implementation – from concept development to commissioning