Hooverfish, interesting post. If you wouldn't mind, I am interested to know how the audit was conducted and how the audit results translate into targeted actions to reduce heat loss and improve comfort while not compromising on indoor air quality;There are currently subsidised community schemes around the country to get energy audits done on homes which will identify what you should do to improve your energy situation. We just did one - we paid €200 for it and the scheme paid €200. In our case it was interesting but not that useful because the SEAI grant schemes do not frankly cater for old houses (pre 1920, about 10% of the housing stock).
The software in use estimated that we used and paid *double* what we actually do use at present. This despite a fudge factor entered by the assessor because the standard BER calculations are wrong (overestimate the heat loss) for typical farmhouse 600mm stone walls.
However it made us think and prioritise what we will do ourselves without grants (eg replace the kerosene wick burner in our Rayburn which runs the radiators and hot water in the winter with a pressure jet burner - cost around €1650 payback approx 3 years - so it will pay for itself long before kerosene gets banned in about a decade...).
Would you consider doing one of those audits to decide the priority of actions to improve things, and also make yourself eligible for grants? I would thoroughly recommend a link posted by moderator @Leo previously - look your house-type up in this document and think about what they consider you should prioritise: https://episcope.eu/fileadmin/tabul...e/IE_TABULA_TypologyBrochure_EnergyAction.pdf
Correct @Micks'r - based on SEAI / BER system, no quantitative testing. But I have detailed energy bills going back at least 15 years. The energy use overestimate errors were thought to be due to:Is the audit based on the SEAI grant & BER system where, primarily, dimensional and building element age related data is entered into a computer program in the absence of any quantitative testing? The computer then churns out a result which very often bears no resemblance to what is actually happening in the house?
Was an air pressure test carried out on the house as part of the audit?
Any thermal imaging equipment used in conjunction with the air tightness testing?
Any internal air quality monitoring done (for example monitoring RH% over a period of time)?
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