Ravelli RV100C - Coaxial Pipe (outside air) will impact RDS system - opinions

[Wire12xu]

Hi again everyone,

Well, we've finally arrived at the ideal stove for our home.
A Ravelli RV100C in black.

We were going to have a double walled pipe attached, but the dealer has informed us that Ravelli has told him that using a double walled pipe could adversely affect the thermostat on the rear of stove. Leading to false temperature readings. We plan on using a remote to control heat via the thermostat. The solution being to use an Olympic single wall pipe. Should this solution not provide sufficient heat, the dealer has suggested installing a vent with a flap near an outside door, presumably to allow outside air in - I'm not sure if I'm explaining the purpose of this vent properly.

Our home is well insulated with foam, double glazed windows etc.
I've read lots of articles on this forum both for and against double/single walled pipes, plus opinions on OAK.

My question is - does anyone have experience using double walled pipes with a Ravelli?
Plus, does it make sense what Ravelli are saying about the thermostat?

Again, many thanks.....

 

[Pelleting In NJ]

You need to find another dealer/installer.....
1) All pellet stove rated flue-pipe is double-walled. Your choice is either 3 inch or 4 inch diameter, depends how restrictive (length and number of elbows). What your dealer said about the thermostat makes no sense....the stoves room temperature air probe tip should be away from the flue pipe, single or double walled, and not touching anything (like the stove cabinet, or the floor, or the wall). Maybe your dealer is talking about triple wall pipe, where the outside air inlet is integrated into one pipe. (see below). Triple wall pipe would be fine to use with your stove.
2) The "vent flap" is the Outside Air inlet, which should be used with the stove, but it is usually located next to the flue pipe exit thimble, connected to the back of the stove with a flexible metal hose.

 

[Wire12xu]

Hi Pellet NJ

Thanks for your response.
Being a total newbie I probably explained the pipe badly.
The pipe will not be one which allows air in, only exhaust for the fumes... you're right - not using a triple walled pipe.
Ravelli said that using a coaxial/triple pipe (not sure if the term is correct) would allow damp in and affect the thermostat.

 

[Pelleting In NJ]

I think your dealer is full of BS.
Ravelli has always recommended the use of an outside air intake system, that's why there is an outside air pipe on the back of the stove. I use an outside air kit with my Elena. In general, during the non-use seasons of the stove, the flue and outside air intake should be sealed, to prevent summer humidity from rusting the inside of the stove.

This is the outside air set-up I use with my Ecoteck/Ravelli stove.

http://www.efireplacestore.com/cpf-...=FeedPerfect&gclid=CIusqPebnsMCFcdj7AodkQMA0g

 

[Wire12xu]

Could I use a triple walled pipe to allow outside air in?
The position of the stove, on an inside wall, doesn't allow for a separate hole in the wall for outside air.
The pipe will vent vertically up from the stove through the ceiling/attic and roof.
Our home is very well insulated, no drafts etc.

 

[Pelleting In NJ]

Yes, I would get the triple-walled pipe with the integrated outside air connection.

Or, if you can go straight thru the wall behind the stove, use this :

http://www.northlineexpress.com/3-p...ntake-kit-with-2-flex-hose-3pvp-aik-5998.html

 

[Wire12xu]

I think my initial post was really misleading, so I'm going to change the heading.
Ravelli recommend using a double walled pipe (not coaxial) because 'The RDS system is affected by outside air.'
I do not want to run the stove in manual mode and adjust combustion fan speed manually when changing feed rates.