I use a product called a Hot Shot by Sunbeam. It holds 16 oz of water and boils it very quickly. I had one last over ten years before the drain seal went out. I bought a whole new one for $20 or less. I love it. BTW...120V, unknown amperage.

Standard Disclaimer.

I have installed one in the last three houses we have lived in.

They are great and become indispensable after using one a few months.

I hate to wait (even 2 minutes in microwave) for my tea too. So I've got a Hot Water Dispenser like this one. Unlike office type dispensers (for bottled water) these are really boiling water (100C). What's crucial for real tea lovers.

Extremely convenient and relatively inexpensive. 3.6 liters model is perfect for a couple of days or more (2 adults). Just add water once in a while (before bed is the best), it will reboil automatically. Plain cylindrical stainless steel pot inside is very easy to clean. I believe they are quite efficient. The consumption measurements over a week of use shows the same figures (in kWh) as our halogen torchlight w/200 Watt Bulb over the same period (in September).

It's died after 2 years of 24/7 use. But I just had to re-solder the burnt out wire inside to make it work as new again. Zojirushi (Japan) is the best in the world (IMHO) brand for these and also for thermoses (mine is some cheaper IKEDA noname).