How long to install an unvented hot water tank ?

[garygtd]

I have a conventional gravity fed copper cylinder which is about 30 years old and planning to change to a direct mains fed hot water tank. Boiler is Gas and new (2-3 years old). I understand directed feed tanks need a drain outlet and a 22mm mains feed so that will add to the time but how long should I expect to be without hot water heating etc ?:disappointed:

 

[SafeGasInstall]

Min 1 day for plumber & apprentice

 

[PlumbBobBob]

i agree with stan, min of 1 day possibly going into a second

 

[AWheating]

2 days min imo. new controls and wiring, discharge, cold main, balanced cold, heating sealed, commission etc.........

 

[tamz]

Half an hour :wink:

 

[AWheating]

Half an hour :wink:

jobs yours

 

[tamz]

jobs yours

Don't want it the times are rubbish :smile:

 

[gasmanrob]

I'd say 2 days but I would only expect to leave the house with no hat water for the duration of the 2nd. The first day would be getting the main up in front of the airing and the discharge down and out have an early finish the next day is hard graft. Doing all the changeover that's where you'd be without heat and hot water

 

[townfanjon]

yep 2 days min on my own, but would also make sure any work booked in on day 3 was move-able 'just in case'

 

[lame plumber]

depends on whether you have easy access to ext walls floorboards or mdf panels, easy access to cupboard or does whole frame have to come off to get new cyl in , state of current heating pipework to name but a few issues.