Thread subject: Homeroasters.org :: Brewer to Roaster..blower question...
Posted by oldgearhead on 05/24/2011 10:18
Love the design!
Side-by-side or in-line won't make a difference as far as heat transfer. Mine are side-by-side.
You'll need good control of air flow - what's the plan for controlling the spa blower?
Chad, thanks for that info. I plan on putting the heater inside a 1.62" id aluminum tube, and leaving room for an additional (in-line) heater.
The blower runs pretty smoothly (unloaded) down to 25 VAC on a varible auto-transformer. I may try a router controller later on in the development, or maybe a 2HP DC drive. It's a brush motor, so maybe it will run on DC? Furthermore, I have orfice control of both the air supply inlet (2.0" PVC) and the hot air exit at the top of the RC (3.0" aluminum tube).
This blower really rocks!
Edited by oldgearhead on 05/24/2011 10:26