On Thu, 23 Sep 2004 11:56:55 +0100, Pete C
wrote:

On Wed, 22 Sep 2004 21:27:08 +0100, gna03633
wrote:


How big can this plume be?

I live on the upper ground floor of a 4 storey town house, the boiler is on
the side wall where all the soil pipes are. Can this vent be ducted up the
side of the, there are is another building next door.

I am keen to get something that is energy efficent, but need something that
will fit into the 'tiny' space I have

Hi,

A lot of condensing boilers have a powered flue that give more choice
as where it can go.

If the boiler is run well below condensing temps I'd expect the plume
to be minimal. A boiler that can modulate it's output right down might
help and be worth a reasonable premium.

cheers,
Pete.

It's partly dependent on the power level as well as the temperature.

The greatest pluming will occur when starting from cold on a cold day
with low humidity under full power. Generally this only lasts for a
short time as the house and heating system warm up.

The design of the boiler has an influence as well, the new ones being
much better.

Most now modulate anyway so also helping


..andy

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