Its to stop POC's going up chimney
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Do i replace my old Baxi Bermuda boiler
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Eee i shoulda said liner.....my baddddd
C
Cis4cookie
cheers guys, on another note what would the cost be of changing to a fully pumped system, sure I have seen them sold as a kit for everything needed
Materials i have no idea but as for labour that can very on the set up.
when you do it you will need new zones valves, tank stat, pump and programmer.
new wiring centre and thermostat if you feel like it too.
it really isn't somthing that you want to attempt yourself as there will be issues with pump over and such if you don't know what you're doing.
i do this as a job and i learned that the hard way first time round!
The chimney opening shall have only two openings: The front of the builders opening and the opening in the flue liner. All other openings including the annular space between the chimney and liner must be sealed, this includes the sides of the chimney opening where the water and gas pipes pass through. This prevents risk of additional air movements which could induce POC to spill from the back boiler/fire and pass up the outside of the flue liner or up the pipe duct into your airing cupboard.
Either leave it alone or get a combi fitted trying to upgrade it is going to be a waste of money personally id be inclined to stay with the baxi for as long as possible and put the money in premium bonds you might get lucky
If you are carrying out a refurb and are concerned with the upheaval at a later date now is the time to fit a new boiler and upgrade the system. Some have said keep it, i agree they were well made and good in their day and might outlast a new boiler but they are really considered to be at the end of their life. I have seen quite a few with perforated metal work of the combined flue and the flue liners don't last forever. If you decide to keep it i strongly suggest you have it serviced and inspected regularly (at least annually), not being a room sealed boiler makes this an absolute necessity.
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