draft inducer

[SnaykeByte]

New to the forum, been lurking for a while, lots of good info here. Just put in a Clayton wood furnace and I think I'm gonna build a boiler similar to a Garn. I've heated with wood for twenty years and was in the HVAC bidness for years, but I've been out of it for so long I no longer have any hookups on equipment. I'm need to find a draft inducer for a boiler with around a 1/2 to 3/4 hp motor and a 4-6" inlet. Anyone have any ideas?

 

[Eric Johnson]

I don't, offhand, SnaykeByte, but welcome to the Boiler Room. I'm sure somebody will have a good suggestion.

It's always nice to have another pro around here to keep the rest of us line (more or less).

 

[wdc1160]

link
I had to think way back on this.
I have only have personal experience with their wood inline inducers. And, then we used it for a corn setup, but I can say it worked well. And, has worked well for almost 3 years.

Much luck

 

[SnaykeByte]

I appreciate the welcome and info, maybe someone will have some info for me.

 

[ericjeeper]

Mercy sakes why such a large blower? I am using a pair of 12 cfm blowers to induce my firebox.Before that I had a double squirrel cages and had 90 % of it blocked off.. These 2 ,12 cfm blowers do a great job of roaring my fire up.
I built my own boiler. Feel free to come look it over,You are less than 30 minutes from me.

 

[wdc1160]

I think the blower we used was 1/8 of a HP; And, it was a 20' air line to the boiler. Snake I think jeeper is right on this.

 

[SnaykeByte]

Wait a minute guys, I posted the first question wrong, I want to pull the draft, not push it. That's why I need a drafter and not a fan so it will stand up to the potential heat of flue gases.

 

[SnaykeByte]

BTW Jeeper, I appreciate the invite, I just might take you up on that.

 

[brad068]

I made my own inducer. It is a 3/4 hp 3450 rpm motor, 9" 8 radial blade fan wheel out of stainless. I couldn't find one either.

 

[SnaykeByte]

I'm thinking about doing the same thiong if I can figure out how to balance it.

 

[SnaykeByte]

Anybody else have any ideas?

 

[hkobus]

It installs "in" the stove pipe? Anyone know how? This looks like what I'm looking for, but would like to know how it installs and if it works well enough.

 

[SnaykeByte]

You cut a rectangular hole of a specific size in the side of the pipe. I think these are rated for about 5-600 degrees.

 

[heaterman]

I don't know for sure because I've never checked but Tjernlund makes lot's of draft inducers for oil and gas fired equipment. Google them and see what pops up.

 

[brad068]

When I was looking for a fan wheel for my boiler I was going to try a dust collector for a sawdust/ wood chip system. The fans I acquired are 1/2hp with a 8" 6 blade aluminum fan wheel. I don't know how much heat a aluminum wheel will take so I built my own fan wheel out of 12ga. s.s. A draft inducer fan wheel needs to be of a radial blade design to handle the particles in the air stream to keep the blades clean and keep the vacuum constant.