Rent Oil filled radiator 2.5kW in London (rent for £6.00 / day, £5.00 / week)
1.5kw Oil Filled Radiator with Timer CR15T - 9to5 Supplies
VonHaus Oil Filled Radiator 9 Fin, Electric Radiator Thermostatically Controlled, 1.5kw Oil Heater for Home, Office & More | DIY at B&Q
Duronic Heater Oil Free Electric HV101, Mica Panels 2.5kW, Radiant and Convection Convector Heating with Thermostat, Heats up in 1 minute - black : Amazon.co.uk: Home & Kitchen