Optional External Exhaust Blower for Wood Pellet Stove - Benefits?

[Don2222]

Hello

I just noticed that Enviro sells an External Exhaust blower for an outside vertical rise venting installation.
The stove exhaust blower is removed from the stove and put into this outside box to blow up the vent.

What is the advantage of this? Is it worth the extra expense and installation? What is the purpose?
How much does it cost?

See
http://www.enviro.com/images/manuals-brochures/pellet-tech/C-10746 Instruction Exterior Exhaust Kit.pdf

Also diagram below.
Click to enlarge

 

[SmokeyTheBear]

It gets the noise of the combustion blower out of the house.

 

[Don2222]

It gets the noise of the combustion blower out of the house.

That is True! Also some stoves do not recommend outside vertical rise venting in colder climates because the cold temps will contribute to clogging the venting much more often. Therefore this outside blower may solve this issue. Also when you clean your outside vent you can clean your blower! That may make it more difficult though?

 

[DBCOOPER]

I think that is a great Idea. Thought about trying to do that myself on my CB1200i. Remoting the convection fan was another thought I had.

 

[DexterDay]

That is True! Also some stoves do not recommend outside vertical rise venting in colder climates because the cold temps will contribute to clogging the venting much more often. Therefore this outside blower may solve this issue. Also when you clean your outside vent you can clean your blower! That may make it more difficult though?

I don't thinl that moving the blower outside will keeps the temps in the vent any higher?

Its a great idea to reduce that noisy component. But the airflow will likely be the same. The EVL would still be the same. Even if you moved the blower to the mid-point of the system, it still has to "pull" it through the 1st half.

Other than noise. Another added benefit, would be that it would make the snout on the stove and the joints of Pellet Vent inside the house, a negative pressure environment. So it wouldn't leak. I would still High Temp RTV the Adapter, but all other joints wouldn't need any RTV or Tape.

 

[SmokeyTheBear]

I don't thinl that moving the blower outside will keeps the temps in the vent any higher?

Its a great idea to reduce that noisy component. But the airflow will likely be the same. The EVL would still be the same. Even if you moved the blower to the mid-point of the system, it still has to "pull" it through the 1st half.

Other than noise. Another added benefit, would be that it would make the snout on the stove and the joints of Pellet Vent inside the house, a negative pressure environment. So it wouldn't leak. I would still High Temp RTV the Adapter, but all other joints wouldn't need any RTV or Tape.

Sorry, I draw the line on the non sealing of venting in the house. You are assuming that there would be no other source of suction that would cause those possible leaks to spill smoke, etc.... this is not reasonable. Seal all interior vent joints period, and even then you have those pesky air washes etc.. to possibly deal with.

It is sort of like having skylights in your roof, you are asking for trouble. The fewer possible trouble spots the better.

 

[DexterDay]

Sorry, I draw the line on the non sealing of venting in the house. You are assuming that there would be no other source of suction that would cause those possible leaks to spill smoke, etc.... this is not reasonable. Seal all interior vent joints period, and even then you have those pesky air washes etc.. to possibly deal with.

It is sort of like having skylights in your roof, you are asking for trouble. The fewer possible trouble spots the better.

I still stated that I would seal the Adapter to the stove. Maybe you didnt read that part. ??The other sections shouldnt need other sealing anyways. I have 3 systems and only my 4" has tape on all internal joints because they leaked.

The other 2 systems seal as they should and dont need sealant (again, Other than Adapter) Many others do not seal internal joints. Especially depending on the brand of venting.

Im sorry that a lot of people think they need to seal every joint. But a well built and well installed system, should not leak.

 

[smoke show]

But a well built and well installed system, should not leak.

Your gonna love that DT, when you get it.

 

[DexterDay]

Your gonna love that DT, when you get it.

Even Pellet Vent Pro has good seals within it. I think my 4" is just to big and the seals are the same size as the 3". Both 3" systems are only sealed at the adapter/snout. One Direct Vent, but has a couple connections inside and the other has several connections and 5' internal rise and 2 clean-out T's (one down low amd one up top).

The DT, if it leaked, would leak into the OAK air? Hard to tell if it leaks

 

[SmokeyTheBear]

Even Pellet Vent Pro has good seals within it. I think my 4" is just to big and the seals are the same size as the 3". Both 3" systems are only sealed at the adapter/snout. One Direct Vent, but has a couple connections inside and the other has several connections and 5' internal rise and 2 clean-out T's (one down low amd one up top).

The DT, if it leaked, would leak into the OAK air? Hard to tell if it leaks

You'll know if it leaks into your OAK air, trust me the burn will go all to hell.