An elderly neighbour has just bought a cheap store-branded electrical convector heater. Basically it's a mains power switch, a mechanical thermostat switch, and a resistive heater element in series. (There isn't a fan, it relies on natural convection). The thermostat contacts are producing some impressive looking flashes when it switches, I guess it isn't going to have a very long life. I wonder it it's worth wiring a suppressor across the switch, e.g. this http://www.maplin.co.uk/contact-suppressor-498 which appears to be a 0.1uF X-rated capacitor in series with a 100 ohm resistor. A bit of research on the web suggests these work best for fairly low currents (< 2A) whereas the heater has a maximum power of 2 kW, i.e. about 8.5A at 230V (UK mains supply). Any advice?