Mum suggested a panel heater as back up in our next house, so I'm interested in how well they work & price etc.
I have a split system, bottled gas heater & oil heater for the kids rooms here. If I want instant heat I turn on the gas heater, but its lucky to go on once a fortnight. Temps here get down to minus's at night I have kids who refuse to acknowledge the cold, & DD3 won't sleep with blankets on. Drives me up the wall, but I'll happily pay a higher bill to keep her warm.

Our next house will be a lot bigger, no carpet & we'll only have a fire place & the oil heater. This might be fine, but I think our little oil heater might be a bit small. It only does the kids 2 rooms now, soon there'll be 4 bedrooms surrounding it. I might just get one each for the kids rooms & have them on low over night.