Knowledge Base
Blog & Professional Articles
MEP, BIM and energy topics — from a practical engineering perspective.
Why Does Hot Water Smell Bad? – The Hidden Electrochemical and Biological Trap in DHW Tanks
Rotten-egg-smelling hot water is rarely the water utility's fault. We explain the biological-electrochemical process at work inside DHW tanks, and the permanent engineering fix.
Heat Demand from an Energy Certificate – Why It Can't Replace Proper MEP Design
An energy performance certificate measures in kWh; MEP heat demand is measured in kW. We show how to extract reliable baseline data from a certificate for heat pump sizing.
What Does the EU Actually Fund — and What Not? The Legal Pitfalls of Heat Pump Investments
Hungarian decree 55/2016 (NFM) ties eligibility to water as the heat-transfer medium — which is why split A/C units, hydronic hubs, VRF and rooftop systems fall outside EU funding.
When There's Too Much Fresh Air – Why Demand-Controlled Ventilation Matters
Continuous, high-airflow mechanical ventilation dries out a home in winter. We explain the underlying physics and how demand-controlled ventilation solves it.
Plate Heat Exchangers – Application, Connection and Sizing Principles
A plate heat exchanger has no fixed output of its own. We cover when it's mandatory, what connection rules must be followed, and the trap hiding in sizing it.
How Big a Buffer Tank Does a Heat Pump System Actually Need?
The role of buffer tank sizing, the failure modes of tanks that are too small or too large, manufacturer rules of thumb, and the control-engineering sizing formula.
Why You Can't Pipe a Heat Pump the Same Way You'd Pipe a Gas Boiler
Gas boilers and heat pumps have fundamentally different hydraulic sizing needs. We cover the physics of the temperature differential, the classic pipe-sizing mistake, and the correct engineering solution.
When the Designer Isn't Called Back for Construction – Why Professional Oversight Matters
Why there is no such thing as a 100% complete design, what risks unapproved on-site changes carry, and why design supervision is cheaper than tearing out finished work.
Heat Pump System Optimization in a Hotel – The Economic Upside of Precise Design
A bivalent heat pump system for a 25-room hotel: a 60% cut in utility costs, and how a detailed construction design eliminated wildly inconsistent contractor quotes.
The Energy Efficiency Challenges of a Shopping Center – Why Insulation Isn't Always the Best Fix
Based on an energy audit of a 15,000 m² shopping center, we show why upgrading MEP systems — not adding thermal insulation — delivers the biggest return.
MEP Consulting for Wellness Facilities – Energy Optimization in Pool Engineering
Why pool water doesn't need 60–65 °C heating water to reach 28 °C, and how structured consulting can cut energy consumption in wellness and pool engineering.
The Role and Value of MEP Design in Modern Buildings
Why professional MEP (building services) design is indispensable for comfort, energy efficiency, sustainability and operational safety.
Is the Plant Room Really Too Small? – The Real Value of 3D Modeling and BIM
Using a cramped plant room in a 3-unit apartment building as our example, we show how 3D (BIM) modeling prevents expensive surprises during construction.
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