COSORI Electric Kettle Glass Hot Water Boiler & Tea Heater with LED Indicator Inner Lid & Bottom, Hamilton Beach Electric Tea Kettle, Water Boiler & Heater, 1 L, Cordless, Auto-Shutoff & Boil-Dry PrHamilton Beach Electric Tea Kettle, Water Boiler & Heater, 1.7 L, Cordless, Auto-Shutoff and Boil-DrHamilton Beach Electric Tea Kettle, Glass, Water Boiler & Heater, Cordless, LED Indicator Built-In MElectric Boiler Costs - 2020 Buying Guide - ModernizeThe average costs of an electric boiler installation can range between $1,000 to $5,880 in total price. An electric boiler relies on electricity to generate heat, and they can be highly effective at warming a home or a homes water supply. An electric boiler tends to be less expensive than gas boilers, but you must do your research on local costs to run an electric boiler in comparison to a gas boiler.Best Electric Boilers 2021 Prices & ReviewsMay 11, 2017 · Electric boilers tend to be less powerful than gas and oil boilers making them suitable for smaller homes and flats. An average gas boiler has a kW size of anywhere between 24-35 kW compared to 15 kW or less for an electric boiler. There is an electric boiler sizing rule of thumb which suggests that you need 1.5 kW for each radiator in your home.