Be aware of the defaults
You are absolutely correct, the default internal wall/ceiling assumptions are for no insulation, but they take no account at all of them being inside a building. So an internal ceiling is treated by the calculator as though it is an un-insulated roof with sky above. Same for internal walls. So I have a 80s small unit with external walls at R1.5 and then an internal wall is R0.4. This raised the results by about 0.5Kw. I think it is quite justified to edit the default to at least the external wall R value.
Another default error. If you specify 1978-2000 building it uses a default of R1.0 when the legal minimum for this period was R1.5. Go figure... and edit the default.
Originally posted by Don't believe the Hype
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Another default error. If you specify 1978-2000 building it uses a default of R1.0 when the legal minimum for this period was R1.5. Go figure... and edit the default.
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