I know you can get replacement whistles for kettles that have removable ones. Le Creuset, Alessi, etc. Maybe one of them would fit your kettle? Because it's not going to work if it doesn't fit right.

The MichaelGraves Alessi bird or reptilian is 19mm interior dimensions of the spout. It has grip springs to hold it snug. Amazon has them.

Did your whistle break or just not have one? (hate to think what could happen without a whistle...mine sounds like an air-raid siren)

I do have the Breville elec kettle. One flaw is that it hits a rapid boil and holds it for near 15 seconds before shutting itself off. Soaking the underside of my cabinets and fogging up my kitchen clerestory window. Yes it is fast to boil. Dislike all that steam!

I prefer my stovetop kettle. I could probably list 4 dozen electric appliances that have bit the dust over the years. 2 of those elec kettles. A friend that works from home is a tea drinker and elec kettle lover...seems to always have a new one as they burn themselves out. I also do not like all the plastic in contact with boiling water. So many reviews about the horrid smells of the water from most kettles that have plastic or silicone or some type of rubber sealant connecting the parts.

sleevendog, like you I prefer the stovetop kettle, although Elery likes the electric one. We're on our third one in 5 years, they just don't last when they are used daily, I guess. The microwave is definitely the slowest method.

The other issue is storage space, I've got more darned gadgets that don't see regular use, from the rice cooker to the panini press. I never have used the rice cooker, although Elery does occasionally. I find it easier to drag out a couple of cast iron skillets than go into my back room and find the panini press, but The Princess loves to use it. So, if your space is limited, adding a gadget/appliance probably isn't an option.

I've never had to replace a whistle in a stove top kettle, so I'm no help there, but good luck.

Annie

The only other trick is to drill out a cork that fits your opening and put a cylindrical whistle in that drilled hole. Seems a bit diy-ish but when my whistle broke i searched high and low. Mine died when DH took the pups for a walk and left the spout in the opened position and it melted from the steam escaping. That kettle is no longer made but by some miracle he was checking ebay daily have felt so bad and one came up from an estate sale.

How many crap coffee pots have we had, lol. At least a dozen and now use chemex. So simple and fantastic coffee.

I picked up a mixed bag of corks somewhere of many sizes. Amazing how handy that pack has been, Both coolers lost their attached plugs and the smaller size corks fit perfectly.

Well, I hate to admit it, but it's a Hario gooseneck. I do Japanese pourover, and I love it. But I've had a couple incidents lately when I go off to another room and forget the boiling kettle. Thank you all for your input. The cork idea is brilliant. I'm going to see if I can make that work.