Hi,
first post here so please bear with me. I am starting to renovate my Girlfriends house, built sometime 1870's. At some point in the 40s/50s/60s the house has been fitted with central heating (of a sort).
This consists of a large bore pipe (od 2", so can't work out standard size... perhaps 1 1/2" BSP??) which runs as a ring main right round the house in one big circuit loop on the inside of the outer wall (yes its a bungalow) there are about 20 rooms in this, pipe going through every wall and dives into the floor only when an external door is encountered to stop the trip hazard.
This is heated by an oil boiler and a circulating pump. it has stand off radiators in each room. As you can imagine though it is highly inefficent as even if you turn the rad off (if the valves are free) you cannot stop a massive bore pipe pumping its own heat out.
I have three rooms at each end of the house that are not needed at all, (whilst being worked on over the next year or two) and need to economise by not heating them. Eventually all the heating will be swapped out for UFH, as i dig the floor up in each room.
I have two questions:
1) the pipe is 6.25 circumference, hence 2" od, can anyone identify this?
2) I want to 'chop out' or shorten the loop, i was thinking of undoing two joints (after drain down) and putting in a 1 1/2" to 1/2" BSP reducer and then using 1/2" BSP galv pipe, or some plastic 25mm to connect the two reducers. What problems might this create?
first post here so please bear with me. I am starting to renovate my Girlfriends house, built sometime 1870's. At some point in the 40s/50s/60s the house has been fitted with central heating (of a sort).
This consists of a large bore pipe (od 2", so can't work out standard size... perhaps 1 1/2" BSP??) which runs as a ring main right round the house in one big circuit loop on the inside of the outer wall (yes its a bungalow) there are about 20 rooms in this, pipe going through every wall and dives into the floor only when an external door is encountered to stop the trip hazard.
This is heated by an oil boiler and a circulating pump. it has stand off radiators in each room. As you can imagine though it is highly inefficent as even if you turn the rad off (if the valves are free) you cannot stop a massive bore pipe pumping its own heat out.
I have three rooms at each end of the house that are not needed at all, (whilst being worked on over the next year or two) and need to economise by not heating them. Eventually all the heating will be swapped out for UFH, as i dig the floor up in each room.
I have two questions:
1) the pipe is 6.25 circumference, hence 2" od, can anyone identify this?
2) I want to 'chop out' or shorten the loop, i was thinking of undoing two joints (after drain down) and putting in a 1 1/2" to 1/2" BSP reducer and then using 1/2" BSP galv pipe, or some plastic 25mm to connect the two reducers. What problems might this create?
