Hi I am getting only warm radiators yet hot water is fine.
Boiler is Thorn Apollo 15/30
I have changed the pump and the balance valve. The old one had a leak directly onto the pump so I suspected a problem there.
This didnt solve the problem.
However I noticed that when the CH is on the boiler doesnt appear to run through its cycle , in otherwords its fired up all of the time. It never overheats though, also I can hold my hand on the inlet pipe to the pump which i would assume should be mad hot. It seems to me that the flame isnt efficient enough to trip the Hi stat. Would a burner and heat exchanger and flue clean help? I cant understand why the burner should be lit constantly, yet i can hold the hot water pipe continually.
Many Tanks Tiggsy
Thanks for the reply htg engineer.
Ive had a local engineer to look at it. All he talks about is the boilers age and a new replacement, a if you buy today I can offer you a good deal scenario.
He did say that the pressure was ok. But said the system was no longer efficient I pressume by that he means it simply needs descaling and the boiler heat exchanger/burner needs cleaning.
I tried it last night with one of the larger radiators turned off and it seemed much improved. The settings is always on Hi thermostat. Up till last night I noticed that the raditors seemed to be robbing the hot water of heat. But as mentioned before after turning off the conservatory rad everything seems to be better.
So if a good clean and descale doesnt do the job then its time to bite my lip and shell out for a new boiler.
Any thoughts/ advice would be greatfully appreciated specially on system cleaning.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!