Pipe insulation for hot water heating system
Please give me any advice!
My old house has a hot water heating system (radiators in each room; got a boiler in the basement).
The main pipe which carries hot water is located near the ceiling of the basement and subpipes are connecting that main pipe and each radiators.
That main pipe and subpipes in the basement are not insulated at all. Since there is no radiator there, these pipes keep the basement somewhat warm.
My question is this.
Can I insulate some of these pipes in the basement? The basement is only used as a storage area. I understand that it should be kept "not too cold", so other pipes in the basement won't be burst. So I should keep some pipes not insulated... How cold (what temperature?) can it be without any problem?
I live in the Midwest; it gets really really cold sometimes. And the gas cost is very high! I am looking for a way to lower my gas bill...
Any advice/suggestion will be appreciated.