I have a Triangle Tube Prestige Solo 250 wall-mounted boiler for indirect hot water and baseboard heating. This is a condensing boiler and has a drain line that passes through the wall of the equipment room to the outdoors.
Today I went into my equipment room and found that the drain line was backed up and water was dripping onto the equipment room floor. The drain line was blocked with ice on the outside due to the cold snap we have had the last few days.
This doesn't seem to be fatal as it isn't a lot of water and it doesn't seem to be affecting the boiler operation, and the floor is just dirt and concrete so I am not too worried about pH issues. I'm just wondering a) is this *really* a non-issue, and b) if it is an issue, how can I remedy the drain icing in cold weather?