old crane boiler draining?

[diydave5]

ive just purchased an old doctors surgery (built in 1956) and it has a old crane caviller boiler in there, same as this https://www.diynot.com/diy/media/untitled.24207/full

does anyone know how to drain the system from the boiler so i can rip it out? (there are only 3 radiators and none have run off valves so im presuming i have to drain from the boiler somehow?

thanks in advanced

 

[Madrab]

Find the lowest pipe in the system and bang in a self cutting tap if there are no drain offs

 

[Terrywookfit]

Why not ask the gasfitter when he caps the gas !!

 

[Razor900]

It'll be choc full of asbestos.....

 

[Dan Robinson]

Beautiful old boilers. Will be a shame to skip it.

@Wildcat1961 .....