Hi, thanks for your idea!
Firstly, I would like to express my solidarity with your passion for tea - it truly is the drink of choice for anyone with good taste.
The issue was brought to Ops and Services Advisory Forum, who regretably said that due to the risk of burning, we would be unable to provide a hot water dispenser in the Union. Some buildings have common rooms where hot water is available, and you cna also buy it (I think for 20p or so) from University catering outlets. We try to combat this by keeping our tea and coffee prices as low as possible - definitely cheaper than your high street coffee shops!
The microwaves are cleaned regularly, but if you ever see one in a less than happy state, please email email@example.com and we'll get it sorted!
Flora, Vice-President Student Communities and Deputy President