Small 800W max induction cooktop. Could be used as a portable device or mounted into a kitchen worktop. Two models on the product page - with buttons placed on cooktop itself or with separate wired remote (with more functions)
Interesting 2 in 1 solution - LPG cans heater with a rotatable head that could be also used as a stove. Works on LPG cans or connection to a bigger tank
Instant Tankless Hot Water Heater Boiler + Shower Head. Works on LPG and not requiring external exhaust pipe (if mounted in a ventilated area). Ideal for camping purpose