We did have over night storage heaters before. Had those taken out and three new Fischer heaters put in last April. Not really needed them till this week. Turned them on and within half an hour the house was lovely and warm. The thermostat controls are easy to use, ours are on the Auto setting at the moment given me warmth in the morning when we get up, then in the evening til we go to bed. But if we need to top up the heat in the house during the day we just put the thermostat on to the Sun setting. once again within minutes the temperature is up to the setting we?ve set. So yes I?m well happy with the heats. Money well spend.