Hi All
Our central heating system runs from 8mm microbore pipes, fed from two manifolds upstairs in the cupboard where the hot water tank sits.
We have, in the kitchen, two spare (capped) 8mm pipes from this system which come through the ceiling near the wall (ie: they are not coming from ground floor level, but first floor level instead)
The plan is to put a radiator in the currently very cold utility room, which is next to the kitchen conveniently very near the pipes.
We have purchased 10mm microbore pipe, as 8mm & fittings just didn't seem available anywhere - maybe I looked in the wrong places - and the radiator valves are also 10mm entry, as are the copper push-fit elbows etc I'll use.
I have managed to find 2x 8mm to 10mm reducers, compression joint.
I just wondered if the following sounded OK:
Drill hole/holes for 10mm pipes through to utility room.
Pass pipes through, sort out bends etc using copper push-fit, and finally attach pipes to radiator valves - put radiator on wall etc.
Drain system enough so water won't spurt out when I cut the caps off the 8mm pipes, clean the paint etc off the pipes with wire wool.
Fit 8mm to 10mm compression reducer and attach 10mm pipe.
Check all joints are secure - fill system - bleed radiators.
System details:
Boiler - Ideal "elan 2"
Pump (think its a Grundfos) is near boiler.
Two taps near the boiler, one of which connects to cold water pipe - the other to the feed or return (not sure which)
System type is sealed, with expansion vessel near boiler and single cold water tank in loft which feeds the hot water tank.
Hot water tank in cupboard in bathroom, along with valve & CH manifolds.
Electrically powered valve on hotwater tank I think is the triple kind (HW/CH or HW & CH)
Manifolds have 8 pipes coming of them each (8 'feed', 8 'return')
Timer is fairly usual Honeywell.
Thermostat is radio-controlled (i recently replaced the old wall thermostat
which was in an upstairs bedroom)
Questions:
Should I need to drain whole system, or just the upstairs radiators (so to speak) considering the pipes I'll use currently terminate at ceiling height downstairs?
Could I switch off the system (so the pump won't run) and cut those pipes anyway, one at a time, with just the water in the pipes draining out - or would it start to empty the upstairs radiators?
I think that's about it - and thanks in advance for any help/advice on this!
I have provided pictures of the system for anyone who wants to cast an expert eye. They're quite hi-res at 1.2MB each
Thanks again,
Ashley
http://www.achinton.co.uk/plumb/DSCF0014.JPG 8mm pipes
http://www.achinton.co.uk/plumb/DSCF0004.JPG manifolds
http://www.achinton.co.uk/plumb/DSCF0008.JPG hot water tank (also shows power shower pump)
http://www.achinton.co.uk/plumb/DSCF0010.JPG pump etc near boiler
http://www.achinton.co.uk/plumb/DSCF0011.JPG filler taps
http://www.achinton.co.uk/plumb/DSCF0012.JPG pressure vessel
Our central heating system runs from 8mm microbore pipes, fed from two manifolds upstairs in the cupboard where the hot water tank sits.
We have, in the kitchen, two spare (capped) 8mm pipes from this system which come through the ceiling near the wall (ie: they are not coming from ground floor level, but first floor level instead)
The plan is to put a radiator in the currently very cold utility room, which is next to the kitchen conveniently very near the pipes.
We have purchased 10mm microbore pipe, as 8mm & fittings just didn't seem available anywhere - maybe I looked in the wrong places - and the radiator valves are also 10mm entry, as are the copper push-fit elbows etc I'll use.
I have managed to find 2x 8mm to 10mm reducers, compression joint.
I just wondered if the following sounded OK:
Drill hole/holes for 10mm pipes through to utility room.
Pass pipes through, sort out bends etc using copper push-fit, and finally attach pipes to radiator valves - put radiator on wall etc.
Drain system enough so water won't spurt out when I cut the caps off the 8mm pipes, clean the paint etc off the pipes with wire wool.
Fit 8mm to 10mm compression reducer and attach 10mm pipe.
Check all joints are secure - fill system - bleed radiators.
System details:
Boiler - Ideal "elan 2"
Pump (think its a Grundfos) is near boiler.
Two taps near the boiler, one of which connects to cold water pipe - the other to the feed or return (not sure which)
System type is sealed, with expansion vessel near boiler and single cold water tank in loft which feeds the hot water tank.
Hot water tank in cupboard in bathroom, along with valve & CH manifolds.
Electrically powered valve on hotwater tank I think is the triple kind (HW/CH or HW & CH)
Manifolds have 8 pipes coming of them each (8 'feed', 8 'return')
Timer is fairly usual Honeywell.
Thermostat is radio-controlled (i recently replaced the old wall thermostat
which was in an upstairs bedroom)
Questions:
Should I need to drain whole system, or just the upstairs radiators (so to speak) considering the pipes I'll use currently terminate at ceiling height downstairs?
Could I switch off the system (so the pump won't run) and cut those pipes anyway, one at a time, with just the water in the pipes draining out - or would it start to empty the upstairs radiators?
I think that's about it - and thanks in advance for any help/advice on this!
I have provided pictures of the system for anyone who wants to cast an expert eye. They're quite hi-res at 1.2MB each
Thanks again,
Ashley
http://www.achinton.co.uk/plumb/DSCF0014.JPG 8mm pipes
http://www.achinton.co.uk/plumb/DSCF0004.JPG manifolds
http://www.achinton.co.uk/plumb/DSCF0008.JPG hot water tank (also shows power shower pump)
http://www.achinton.co.uk/plumb/DSCF0010.JPG pump etc near boiler
http://www.achinton.co.uk/plumb/DSCF0011.JPG filler taps
http://www.achinton.co.uk/plumb/DSCF0012.JPG pressure vessel
