When is a flue damper necesaary

mima

Greetings all you lovely, helpful people. :wave:

I'm planning to install a Herald 8 Multifuel stove but notice that the flue damper is listed as an optional item.
My question is, in what situation is there a need or requirement to have a flue dumper installed?

amd

As far as I know, you'd install one of these where there is little or no control over the air input into your stove. It's for shutting the stove down a bit further than the stove's own controls on very windy days when the draught up the flue would make your fire burn too fast. We had one many years ago on a Hunter stove which had an automatic (thermostatically controlled) air intake flap. Maybe if you live in a particularly windy situation it would be advisable. Otherwise the stove controls should suffice.

mima

Thanks for taking time to reply, amd.

You confirm what I more or less assumed but since this stove already has, what appears to be a comprehensive air intake control, I wondered if it may be something to do with the type of flue (flexible liner etc) or a type of fuel (wood or solid fuel).

However, your idea about extra control in extreme conditions does make more sens.

mirabelle

mima wrote: »

Greetings all you lovely, helpful people. :wave:

I'm planning to install a Herald 8 Multifuel stove but notice that the flue damper is listed as an optional item.
My question is, in what situation is there a need or requirement to have a flue dumper installed?

I've had a Hunter Herald 8 for two years now and live in a very windy location (by the sea) and have not got a Damper fitted. My installation and instruction booklet supplied with the stove says:

Damper Assembly (Optional)
"When burning wood, the flue damper assembly may be fitted. When the damper is set in the open position the chimney draws at full draught, increasing the volume of airflow through the stove and flue. Shutting the damper restricts the flow, slowing the rate of burning.

Warning ! The flue damper must not be fitted when burning solid mineral
fuel".

Hunter Stoves are in Devon and their phone number is 01392 841744. If you ask for Technical they will answer any questions you may have.

Hope this helps.

mazpope

we have a woodburning stove and use our dampner although we have 4 air wash controls to restrict air intake on the front of the stove we also use the dampner to restrict the draw up our huge chimney and find this allows our wood burning stove to go all night of just a few blocks and still be going well enough to just bung a few blocks on the following morning withought having to re light it .hope this helps

mima

I've contacted Hunter and this is the reply: 
"A Flue Damper is normally used to control a flue with excessive draught.
You Installation Engineer can advise you when he surveys the proposed installation."

Thanks to all

mima

Hi again,

I'm now, at last, in the process of installing a multi fuel Herald 8 stove with a clip in boiler.

In the "Instalation and Operating Instructions" they refer to "Tertiary Air", a term I'm not very familiar with and since it appears to be a semi-permanent setting, I'm wondering when and how should this option be set/used for the maximum benefit.
Or are there circumstances when it should not be used at all?



Thanks in advance.

si-mate

My parents have a hunter herald (not sure which model) and it would burn out in a couple of hours before the damper was fitted. It can't be much more on top of the price of the stove so I would get it and have it fitted - you don't need to use it if you don't need it then.