You are here: Home › Literature & Tools | Monitoring |New builts / residential buildings |Co-Heating report 2016

Determination of the heat loss coefficient (HLC) of a Passive House – report June 2016

Authors:: Dr. Oliver Ottinger, Dr. Jürgen Schnieders, Dipl.-Ing. Wolfgang Hasper, Dipl.-Ing. (FH) Søren Peper (Passivhaus Institut)
Prof. Dr. Wolfgang Feist
, Institut für Konstruktion und Materialwissenschaften der Universität Innsbruck

The building envelope is, beside the building services, the key to reach the Passive House Standard and its high efficiency. As part of the international research project IEA EBC Annex 58 the Passive House institute has examined experimentally the thermal quality of two Passive House buildings. The goal was to show that the planned quality is in concordance with the realized built quality of the thermal envelope of certified Passive Houses.

The thermal quality of a building is mainly determined by the installed insulation, the air tightness and avoiding thermal bridges. The three are some of the Passive House principles.

The Passive House institute has heated both buildings in winter to a constant raised internal temperature electrically (Co-Heating). From the measured electricity consumption the heat loss coefficient [W/K] can be determined. The heat loss coefficient is an important measure that is calculated in the energy balance calculation with the Passive House Planning Package (PHPP). A low value is in concordance with low energy demands for heating.
Results from the Annex 58 project are: The planning is in very good concordance with measured results for the heat loss coefficient for both Passive Houses. The used Co-Heating method is a very good possibility to examine the thermal quality of the building envelope also for highly insulated buildings as Passive Houses excluding the influence of building services and users.

Download ( pdf 4,6 MB) (see pages 140 ff)

 

Next Courses

PHPP Expert
Passive House Designer / Consultant
Construction Verifier
Site Supervisor
read more

e-learning

Events

iPHA Webinar "Project Spotlight: China's first certified Passive House Premium office building" | December 4, 2024
read more

Passive House Open Days |
7 - 9 November 2025

read more

Component Database

Passive House
Component Database
read more


Projects

read more

New developments

designPH
read more

NEW: PHPP 10 (2021)
read more

Seals for Certified Passive House Components
read more


Passive House Classes,
Classic, Plus, Premium
read more


EnerPHit -
PHI certification for retrofits
read more


Wall plaque
for certified Passive Houses
read more

 

Press releases

Latest press releases

Research & Literature

Passive Houses for different climate zones
more

Retrofits with Passive House components -
EnerPHit Planner Handbook
(in German)

 

Passive House Retail Stores now out
Overview of contents
(in German)



PHI Literature

© copyright Passive House Institute 2024