draining boiler

[amstel]

Hello everybody,
I live in a bungalow on my own, and I work abroad quite a lot, usually for about 4-6 weeks alternately away then home.
Whenever Ive been before, I have allways closed the stop tap inside, as you would.
I want to go a step further next time, (mid january) and completely drain the system, there are drain taps on all rads, so nearly all the system can be dr ained easily, but....how do I drain the boiler, if flow/return go up into the loft, then drop down to rads, (no pipes going down from boiler).
Boiler is a Glow Worm 24hxi.
Ther is what looks like a small drain screw on the flow pipe behind the inner casing,but is called a vent screw in the book, can I use this to drain?
Thanks.

 

[bengasman]

Not a particularly clever thing to do, as you will either have to add inhibitor every time you fill it back up, or have the system rot away.

 

[Tibbot]

Your idea is unnecessary. Heating system should only be drained if house is to be left indefinately, eg. When empty long term (unfurnished) awaiting sale, tennants or re-furb. Even though you're away your home is still classed as inhabited and should be maintained as such.

 

[amstel]

Thanks for your advice lads.
but every time I switch on after a long lay off(about 4-6 weeks), the red warning light flashes and boiler wont fire.
Until I press the reset switch on the flow pipe,
cheers

 

[bengasman]

Thanks for your advice lads.
but every time I switch on after a long lay off(about 4-6 weeks), the red warning light flashes and boiler wont fire.
Until I press the reset switch on the flow pipe,
cheers

And?

 

[amstel]

I suppose the answer then is to leave alone ,dont drain the system.
thanks.

p.s. I think the glow worm hxi is a good boiler, had the space saver 45-60
in previous property, would love to know what you guys,..the proffesionals
think?.
























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