Thank you. I think that is some broadly positive news. I'll stop scrolling now.

"No such thing as over-tight building (no one says cars are over-tight)."

We don't live in cars.

Many older buildings are just fine in terms of rates of air change - without first sealing them and re-engineering air change mechanisms.

...possibly.. or perhaps just have a thermostat?

Sadly, not tonight. :-(

Yes, Elmhurst does need to acknowledge its own part in the poor use of EPCs. Basically EPCs as deployed now are not very accurate - because the basic task is not very simple.

Elmhurst are obsessed with process, but the process itself has problems that Elmhurst need to address. M

I used chromatography a couple of times while I worked at NPL, and what I learned is that being even semi-quantitative is quite hard.

I've got a few more spectrometer experiments to try first, and then maybe I'll think about something more complicated!

All the best

Michael

The spectrometer is incredible. There is so much physics to do - and so little time!

I looked at that document but I need to read it again. The condensation efficiency specification makes sense, but I could not understand the energy efficiency specification at all.

It didn't seem to mention the latent heat of water anywhere? That's nuts!

I will read it again this morning

Yes. In Experiment#2 the clothes weighed 7 grams less at the end than at the beginning. I am pretty sure that was due to entrained moisture - or different levels of dryness.

That's interesting too! I may need to develop my measurement protocol!

@wiilp.bsky.social Oh! Thanks for this information. I will attempt to process it all and get back to you!

Wherever you go... there you are.