Recent content by Mountskip

You are probably drawing air into the system, which is replacing water. Air is much 'thinner' than water and can be drawn in through rad valve seals, although there need not be any water, as such, leaking out. Look for where the water is going, limey deposits around valve stems, plugs etc can...

Back to the beginning! I have, in fact, settled on the Atag. The pros & cons discussed above seem to have been mainly in respect of the various combi offerings, whereas my need was for a system boiler. I settled on the Atag as this was the best solution for my situation, which is that the...

Does anyone have the connection data for an ACL Clockwatcher, dating from the 1980's. This delays the system start up, progressively from winter to summer, as the outside temperature increases. Simple efficient and reliable. Terminals only numbered from 1 to 10. Label inside cover says '...

I know and trust my installer, who has fitted a number of Kestons without any bad feedback, but he does not do much service work and so may not be aware of ongoing problems. I do think he may have an above average task in cleaning our system though.

(Many thanks to Agile & Absolute for taking an interest) I have to assume he isn't, otherwise why would he have originally quoted for a Keston.

I accept that the in the ideal circumstances, the system will end up properly cleaned; however given that if not, I won't know until something possibly goes faulty, does the Intergas heat exchanger offer a clearer path than the others, such that it's a better choice despite it's lesser...

My installer has quoted for a Keston 40 system boiler, but have read too many adverse comments on this site to accept that make. My research seems to show that the choice is between the Weismann Vitodens 200W (or 100W?), the Intergas SB 30 (or OV30), or the ATAG A320S. My current boiler...