Instructables

How to bleed and restart your oil heating.

Picture of How to bleed and restart your oil heating.
A guide to restarting oil heating boilers after they've been off for a while or the oil has run out.

Yeah, I've been getting to do plenty of this lately.

A lot of people don't know how to do this when they first move out or in to a house with oil heating after they've used gas or electric all their lives...
 
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Step 1: To the boiler...

Go to the oil tank and make sure there's oil in it, or you'll be wasting your time...

You'll need either a small spanner or Allen key, in my case it's an Allen key.

There'll be a red button, often lit up on the front. Make sure the heating system is in the "on" cycle and press the button, the boiler will start doing things and trying to fire up.

Don't be too disappointed, it's very rare for you to get lucky but it has happened to me and it seems to help get the fuel moving a little bit.

Step 2: Bleed the line.

You'll need to find the bleed nut/plug, it's on the front of the boiler but may not be too obvious, it'll usually be a rubbery plug, once you've located it you'll need to unscrew it.

Fuel will begin to dribble out along with air, let it dribble until it's at a steady rate of flow.

Screw the plug back in but not completely tight, just in until it stops dripping, press the button and cross your fingers.

It didn't fire? No worries repeat the bleeding process again, it can take up to ten goes. If you do find it always takes a huge number of turns to start again you may need to replace the in line filter.

fwjs285 years ago
at first, wheni read the title, i thought it said how to bleed.....lol....pretty good 'ible
killerjackalope (author)  fwjs285 years ago
Ha, do you want one on how to bleed
Yes...it will be very short- "allow yourself to be distracted while manipulating machine with edges, great mass or momentum..." LOL!
Yes...it will be very short- "allow yourself to be distracted while manipulating machine with edges, great mass or momentum..." LOL!
SURE!!!! :P
the basics...awesome! This 'ible epitomizes 'Instructables'...how to manipulate everyday machines! Thank you for sharing.
the basics...awesome! This 'ible epitomizes 'Instructables'...how to manipulate everyday machines! Thank you for sharing.
Goodhart5 years ago
Wow, does this bring back really bad memories :-) At one apartment I lived at with my first wife, I had to do this, and prime the oil pump every fall after it got cold.
killerjackalope (author)  Goodhart5 years ago
Oh joy, had one that had a little pump to prime it because the line would empty completely and the oil wouldn't flow under gravity but not that actual boiler...