Zojirushi CV-DSC40 VE Hybrid Water Boiler & Warmer (Stainless Steel) for $131.99 shipped.  Here is a screenshot for your reference.  This water boiler and warmer features a 4-liter capacity, vacuum-insulation to keep water warm, various temperature settings, auto shut-off, and more.  Most places have this water boiler and warmer for about $174.