Hmm, I grew up in a house without heating either. I shared a room with my sisters until I was 9 and my mum got this huge council house for us all (6 of us) which meant I had the little boxroom. It had a bed in it and not much else! My clothes were stored in drawers in the hall.
Our clothes were all from jumble sales and never fitted properly.
Now my kids live in a house with heating, although we don't turn it on very often, therefore we have a mildew problem that the letting agents refuse to sort out because it's our problem.
They wear second-hand clothes, but good quality ones from Ebay.
They play out a lot, I make sure of that. And we do a lot of walking as a family. We walk to school and back every day and we go for a walk every weekend.
They are richer in terms of attention. We get involved in their school work, we take them on family days out, they've eaten in restaurants.
So financially I'd say we're about even, but in other ways they are having a much better childhood.