Interpet Deltatherm Aquarium Fish Tank Heater, adjustable, for Tropical and Marine, 200 W, for aquariums up to 180 litres, Black : Amazon.co.uk: Pet Supplies
My Heat 200-Watt Electric Portable Personal Space Heater, White -New
200W DC 12V Electric PTC Heater Thermostatic Insulated Ceramic Air Heater High Power PTC Heating Element : Amazon.co.uk: Home & Kitchen
Cole-Parmer EH-200-2-L 2-Well Macro-Kjeldahl Extraction Heater, 800 mL, UK; 230 VAC from Cole-Parmer United Kingdom