1.7L Electric Kettle Quiet, Double Wall Hot Water Boiler BPA-Free, Quiet Boil and Cool Touch Tea Kettle, Cordless with Auto Shut-Off & Boil Dry Protection, 1500W Fast Boiling, Green

I have only put this through the 5 heat and rinse cycles the instructions suggest. It heats/boils consistently at 7:55 seconds. Keep in mind this thing is huge and is heating about a gallon of water to a boil in less than 8 minutes.I want to mention that it is very important to use filtered water in this. All of the crusty looking, rusted photos on here in the reviews is because their water was not well filtered. I know this because I ran the first fill/heat/rinse with regular tap water because I was just going to dump it out. When I poured out the water, there was half moon shaped crusty, brown deposit on the bottom of the inside. I had to descale it with filtered water and a tiny bit of vinegar to get it out. Then I used filtered water for the next 4 times of fill/heat/rinse and it was totally fine.For filter reference, I have a Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W. It is totally worth it. Right now Amazon has it for sale for $299 and there is an $80 coupon with it right now. Clearly, this thing works well at cleaning your tap water. Mine is 4 years old (filters are new) and still cleans it well enough to notice with this boiling experiment.This did take a very long time to ship. It looked like the large version of a little travel one I already have that has worked so well, it seemed worth the wait.The outer shell is hard plastic, not the flimsy plastic that I have seen out there. The inside is stainless steel that is in one piece, without seams anywhere to get rusty. It makes it very easy to wipe out if needed.I will update this review after I’ve used this for a while.So far, so good.