Ventilation for stove with HRV

T

tipperary

Registered User
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Hi

building a house at the moment using ICF so a fairly airtight build. I will be installing a HRV system and so have no trickle vents or other ventilation opes. I hope to install a multi fuel stove with a back boiler. I am trying to find out if I need to provide additional ventilation for the stove unit or should the HRV unit be sufficient?

Any info would be greatly appreciated.
 
Not too familar with HRV. But I am certain that you will need an open vent for your stove. Any carbon based fuel that is burned produces CO2 (carbon dioxide) when there is insufficient ventilation, CO is produced (carbon monoxide) the silent killer.

Your best bet is to know the size/model of your proposed stove and then get a copy of it's installation guide. This will tell you exactly the size of the vent required and all you need to know. Always fit appliances to manufacturers instructions.
 
We are building a HRV house with a multi fuel stove and a wood burning stove in the other room. We are just connecting the pipes to the chimney, no gaps around so it is still airtight, no open holes and it is then obviously vented out the chimney! We don't have any additional ventilation for the stove. The AHU we have should be sufficient for ventilation needs. Anyway, that is roughly what we did.
 
Look for a "room sealed" stove. It will have its own air supply and not rely on taking air from the interior of your house.
 
We have a HRV system and a multifuel stove (6KW with no back boiler) in our sitting room. When I had the HRV installed I ensured that the vent was placed as close to the stove a possible to provide adequate air supply.

Have had it for about 2 years and has been grand.

Lastbuilders
 
Superman said:
Look for a "room sealed" stove. It will have its own air supply and not rely on taking air from the interior of your house.
Click to expand...

If you can get a room sealed stove this would be ideal. I find this thread very interesting and would like to know what you finally decide. whoever is installing your system should know as they have surely come up against it before.
 
Thanks for all the input. From what I can see all the room sealed stoves seem to be the more modern looking stoves. Unfortunately the only way to convince my better half not to have an open fire was to have a traditional style stove.

I think I will run a duct from outside to the side wall of the fireplace opening. Hopefully this will mean that we don't get draughts around the room from the incoming air.
 
tipperary said:
I think I will run a duct from outside to the side wall of the fireplace opening. Hopefully this will mean that we don't get draughts around the room from the incoming air.
Click to expand...

There is the possibilty of course with this option that this causes warm air to be pushed out rather than cold air drawn in. Just a theory. If the HRV outlet in this room is providing warm fresh air to that room and all the doors in the room are closed then I assume my theory could play out.

I'd go with the advice above and leave it out for now. If you find there is insufficient draft the vent you mentioned can be added in afterwards.

Room sealed stove it still a way better option. There are alot of them available now. You may find one that meets the bosses approval.
 

Hi Tipp,

I'm inexactly same position as you at the moment.
How did this work out for you, i.e. running duct outside to vent at fireplace?? I'd love to know, thanks.
 
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