Solid glass or crystal doorknobs look pretty cool, but it turns out that they can literally set your house on fire if hit by direct sunlight. One family from the UK learned that the hard way last September, when one of their glass doorknobs focused the sun’s rays on nearby clothing, setting them ablaze.
Luckily for Londoner Clare Thomson and her family , who were at home at the time of the fire, a smoke alarm fitted on the property went off before the fire got out of control, and they were able to safely leave the house. “I was amazed at how intense the low September sun could be and I was amazed at how quickly a small fire could take place,” Thompson said. “I would advise people not to buy crystal doorknobs, and I would advise home stores to be aware of the fire risk when stocking. Or, at least, such doorknobs should come with a warning.”