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by Longbow archer
Tue Nov 27, 2007 1:34 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7017

OK, it's a month on from my last post and I thought I'd bring you up to date with the heating in my house (for the Heating Doctor and elscripto in particular, who were full of helpful advice). This weekend we drained the system, flushing out all of the radiators in the process. All of them had sludg...
by Longbow archer
Mon Oct 29, 2007 9:43 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7017

Many thanks for your suggestion elscripto. I'm looking to buy new valves for all the radiators (TRVs and new lockshields, two with drain valves for downstairs) and with help, will be draining the system down and fitting them soon. I'll try your method when the new valves are newly installed. By the ...
by Longbow archer
Thu Oct 25, 2007 9:20 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7017

Unfortunately not. All the other rads (bar one other) have spindles with dimples on the top in which the cover is attached to the spindle by a grubb screw. [/img]
by Longbow archer
Wed Oct 24, 2007 9:57 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7017

Thanks again for replying to my post. I still have the cold bedroom radiator to deal with. As mentioned before, the two valves do not have covers (they don't have grubb screws on the tops of the spindles in order to take covers that are turnable). All they have is a spindle with no dimple in the top...
by Longbow archer
Tue Oct 23, 2007 10:13 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7017

Thanks again for the advice. Due to recently paying out for my house to be re-wired, I can't afford to go at this hammer and tongs right now. I'm hoping that if I initially drain down the system, fit new valves etc. and add inhibitor to the system then that at least will afford some protection. I'd ...
by Longbow archer
Mon Oct 22, 2007 9:28 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7017

Reply to Heating Doctor's helpful tips

Heating Doctor, Many thanks for the info. As for your suggestions/questions: (1) Will do as you suggest and fit TRVs, new lockshields and drain valves where appropriate. (2) We didn't add any inhibitor to the system this time. We might as well do this when we drain the whole system down to fit the n...
by Longbow archer
Thu Oct 18, 2007 2:09 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7017

Radiator fails to warm up

Hello everyone. I know this topic is often repeated on the forum, but after viewing some of the replies, I still have questions as to why my bedroom radiator will not warm up.... Heating system = semi-gravity running off a back boiler (probably around 20 years old), large hot water cylinder, plastic...
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