Peer-reviewed technical guides, building physics derivations, and practical calculation methodologies for heating engineers, retrofit assessors, and building owners.
Compare ACCA Manual J residential load calculations against European BS EN 12831 and simplified steady-state building physics models. Accuracy and speed evaluated.
Master the building physics of convective heat loss, Blower Door n50 testing, natural infiltration (ACH), the stack effect, and MVHR heat recovery systems.
Learn how to calculate total building heat loss in kW and estimate annual energy consumption using Heating Degree Days (HDD). Sizing rules for heat pumps and boilers.
Master the building physics of U-values, R-values, RSI, and thermal conductivity (lambda). Learn how to calculate composite multi-layer wall, roof, and floor assemblies.
Learn how to size radiators for low-temperature heat pumps using official BS EN 442 Delta T correction formulas. Understand Type 11, 21, 22, and 33 panels.
Master the complete engineering methodology for calculating single-room heat loss. Learn fabric transmission, ventilation draughts, thermal bridging, and radiator sizing.