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    What size rad?

    I've got a two up two down end of terrance. I've got the end house so it's like a semi. The downstairs is open plan. The two rooms downstairs are linked by an opening slightly larger than a door way are about 17' x 14' each. At present each room has a rad that is 175cm long. I guess they are...
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    Ferroli Medenano pressure after bleeding rad

    I'm at a friends and she told me her bathroom rad didn't get hot. All the others in the house do. Her HW was fine as well. I bled the air out of the rad. and now there is no pressure on the bolier gauge and it won't stay alight. So no HW or CH. She said that as I bled the rad upstairs there...
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    Motorised valve different types? Edited

    The saga continues. I've had new motorised valve fitted. Since then I've had very little heat from the rads. I've checked power to the valve and have taken the cover off to see what happens. When the HW is on the valve motor operates and the rads get hot. When the CH is on it doesn't move...
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    How to test for power (voltage)

    A plumber has fitted new motorised valve to my heating system, Unfortunatly he failed to mention he couldn't wire it up. The original had three wires. Green/yellow = earth. Blue = neutral. Brown = live. The new one a Boss unit has five wires. After a lot of phone calls I got hold of the...
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    One rad at a time?

    Last winter I thought I had a problem with my 3 way valve. For an unknown reason (to me) only one or at best two rads would got hot at a time. I've got a boiler in my kitchen. Pump upstairs. Four rads in the house, two up two down. Every thing used to fine. I found if I forced the gear (not the...
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    ACL Motortrol valve replacement info?

    I had a problem with the valve on my heating system. Simply it stopped working. I could move the manual lever with alot of effort to manual so I assumed it was worn out. It is located on the exit side of my pump, one exit to the hot water tank the other the heating (rads). The cover is marked...
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