I would love to use our conservatory as a play room/dining room, but 75% of the year it’s just too cold. It has half height brick walls then glass at the top. We do have a radiator in there which hardly makes a difference. The floor is freezing stone tiles. We sometimes use an oil heater but I’m quite conscious that these use a lot of electric! Does anyone have any advice on how we could make it more useable with an idea of costs involved? . LO is only 7 weeks currently so I know we will need to alter the floor somehow!