winter shutdown

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winter shutdown

Post  mick 100 on Sun 18 Oct 2015, 4:07 am

my workshop gets very cold and frosty somebody said that you can put antifreeze in the boiler water and fill it up as antifreeze takes the oxygen out of the water and helps to stop corrosion . or is it best to leave the boiler as dry as possible with all the plugs out . this is our first winter at shutting down our engine and we are trying to get as much information as we can .many thanks mick and Claire.

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Re: winter shutdown

Post  lynnr on Sun 18 Oct 2015, 6:29 am

Hi

I lightly steam Crystal to 60psi.
Fire burnt out but left in the grate.
Blow down fully.
Immediately remove all plugs and piston and valve covers.
Leave until next day. Boiler inside should be completely dry by now. I borascope the boiler to check.
Dry any lingering condensate.
Refit all boiler bungs.
Oil up the valve timing chests and cylinder bores as far as possible and replace covers.
Brush tubes with the stainless steel brush.
Remove grate and wire brush down the firebox.
Wire brush front tube plate and smokebox and as much of chimney.
Suck all tubes and smokebox with ash vac. Ash if damp can become corrosive.
Lightly oil both firebox and smokebox.
Motion left oily from last steaming or cleaned and re oiled.
Pressure gauge removed and stored in house against frost damage.
Mechanical water pump glands cracked open and drained.
Clack valves opened, dried out, put back together.
Steam injector all pipework loosened off and dried out.
Tender and Belly tank drained and wicks installed to get the last dregs out.
60w 12" bar heater in firebox with grate and ashpan installed. Damper closed.
Rag over the chimney top to reduce drafting.
2 x 60w 48" bar heaters under the engine on theromostats. One at 1degC the other at 4degC.
Cover with canvas engine cover.
Cover with old bed sheets as dust cover.

Night Night. No problem for the last 4 North Scotland winters.

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winter shutdown

Post  mick 100 on Mon 19 Oct 2015, 11:59 am

Hi thank you for your reply it seems most people leave there engines dry so we think that's the way to go once again many thanks .
mick and Claire.

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Re: winter shutdown

Post  IanL on Wed 21 Oct 2015, 6:14 am

The Paplewick pumping station in Nottingham keep all their boilers brimmed when not in steam. This stops oxygen getting to the boiler and rusting it, as it is likely even when empty to have a high moisture content. they claim there has been very little corrosion after more than a 100 years of using this method.

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winter shutdown

Post  mick 100 on Sat 24 Oct 2015, 9:32 am

I would like to leave water in our boiler but my workshop is very big and gets very cold and frosty how do they stop the water from freezing . I cannot keep the engine warm .

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Re: winter shutdown

Post  mikero on Sat 24 Oct 2015, 5:50 pm

A single light bulb in the firebox would be enough, an old sleeping bag over the top would help as well. Greenhouse heaters are good as well as they can be set to come on when the air gets down to +2 or 3 degrees C.

Mikero

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Re: winter shutdown

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