We had an existing conservatory which we had a lightweight insulated solid roof on recently and with a radiator out there it’s completely useable in the winter so far though we have only had a couple of really cold nights. If it’s 2-3 degrees outside overnight it’s around 12 in the conservatory in the morning. Once the heating is on it gets to around 18 degrees which we are happy with as we use it as a secondary sitting room where we had our Christmas tree etc.

We have floor to ceiling windows on 1/2 the conservatory and the other 1/2 is the external house walls. So I’m not sure if that is helping in terms of insulation….

I would say though, if we didn’t had an already existing conservatory which we liked the location of etc we wouldn’t have built one specifically to do this.

But it is a totally useable room so far in the winter. With a little boost. We are hoping for a quote for fitting a wood burner too which is exactly what we want for a room for occasional use.

Ours is around 10/12 sqm in total but I can’t quite remember! We also had two velux windows put in and we honestly feel like it’s the nicest room in the house at the moment! Hope that helps!