Convert vented oil heating to unvented

[Twobins]

Hi
I want to get rid of the cold water storage tank in the loft, move the HW cylinder from upstairs bathroom to downstairs in the garage in order to give more space in the bathroom.

Does anyone know any good books or references re changing a vented system to unvented? Its an oil fired central heating system. I've done quite a few vented systems in the past but this would be my first attempt at a sealed system.

Thanks

 

[snb]

get hold of a copy of you boiler instructions. It will have most of the info for you.

 

[kevplumb]

re changing a vented system to unvented?

dhw or heating or both

unvented usually refers to dhw

sealed usually refers to the boiler side

 

[Twobins]

Thanks for the replies - I'd like both the heating and hot water to be pressurised. The oil boiler is just conventional.

 

[Paul Barker]

Boiler needs to have an overheat stat and manufactureurs instructions specify that it can be used in a sealed system.

For unvented hot water need good water supply.

 

[kevplumb]

and don't forget filling loop prv expansion vessel and press gauge

depending on the age you might get the odd weeping valve as well

 

[Agile]

You mention "moving the cylinder".

I hope you realise that you will have to REPLACE it with a Megaflow type which cost around £800 ?

Tony

 

[Twobins]

Yes I realise a Megaflow type cylinder is required.