Bigger fan options when moving to a bigger smoker?

ChrisB in Miami

New member
I'm currently using my HeaterMeter on a BGE XL with an Adapt-a-Damper and it works great. I am looking at adding a bigger, offset smoker to my repertoire and am wondering about HeaterMeter-compatible fan options on bigger smokers. I went on the BBQ Guru site and went through their "help me choose" process to get an idea what they use. I chose a 60" Lang and got this:

It indicates that they would recommend 2 of their Pit Bull fans for a smoker of this size.

Does anybody here have any thoughts around this?
  • Do the BBQ Guru fans work with the HeaterMeter?
  • That kit comes with a Fan Splitter - is it safe to assume that that would work with HeaterMeter as well?
  • Are there other large fans that anyone has experience with?
  • Any advice when thinking about using HeaterMeter on a bigger smoker in general?
Thanks for any input!
 

WBegg

TVWBB Pro
Yeah, the BBQ Guru fans will work, but you'll need some sort of adapter to go from RJ45 to the plugs they use. Fan Splitter looks like a power adapter in parallel so should work. For my Gravity Feed, I use a 15 CFM fan, and it's plenty (it usually runs around 10% max when up to temp).

Also, you may need a beefier power supply depending on what those fans draw current wise.
 

ChrisB in Miami

New member
Not being nearly as handy / resourceful as I wish I was, can you suggest where I could look for such an adapter? I did some googling and don't see anything looking like it has a barrel like theirs does. Or, if there's another / better fan option, can you point me at that? Also, you said you use a 15 CFM fan - do you have that hooked into a damper too? I'd love to get a look at that... I'm not sure how much airflow those BBQ Guru fans put out, I'll see if I can find out.
 

IdoParag

New member
Hi,
Regarding those:
  • Are there other large fans that anyone has experience with?
  • Any advice when thinking about using HeaterMeter on a bigger smoker in general?

I'm using the "38 CFM Fan/Damper " that WBegg mention above on a reverse flow smoker that is 1m in length and about 60cm tall/deep (it's hexagonal).
Using those:

The system didn't cost more than 20$ (3d printed parts not including) and works perfectly.
keeps the smoker nice and warm with very little effort. I can reach 250' deg (celcius) without any problem with the fan 100%.
 

Bryan Mayland

TVWBB Honor Circle
Something to bear in mind is that the HeaterMeter fan output circuit is designed a 1A max blower output, as both the diode and inductor are only rated for that (and actually, we're overdriving the inductor because our peak current can be up to 2A). I've run up to 3A through one before but it permanently damaged the inductor. A 1.8A blower must be a real beast!
 

ChrisB in Miami

New member
Thanks for the responses guys. I heard back from BBQ Guru - the Pit Viper is 10 CFM, the Pit Bull is 25 CFM. That 1.8A blower says 46 CFM, so almost as much as 2 Pit Bulls. I'm still thinking it through - I'll post back when and if I move forward with it. Thanks again!
 

IdoParag

New member
Something to bear in mind is that the HeaterMeter fan output circuit is designed a 1A max blower output, as both the diode and inductor are only rated for that (and actually, we're overdriving the inductor because our peak current can be up to 2A). I've run up to 3A through one before but it permanently damaged the inductor. A 1.8A blower must be a real beast!
I've been using the system for about a year. the fan rarely used in 100%.

Any way to use HeaterMeter only as PWM output (as the fan does have PWM control) and connect the blower directly to the 12V P.S.?
 

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