V3000 heats up garage

[Elaine Fraser]

Hello,

i have the Oneida V3000 dust collector in a single car garage. After using it for a while, the garage gets really warm. I have 6” pvc pipe and use only a small amount of flex hose. I don't open the doors often since we have neighbours close by. Is this normal? Is there anything I should change? I’ve had the collector about 2.5 years.

thanks for any insight,
Elaine

[Wes Grass]

It's rated at 13 amps at 230 volts. Even at 8 amps it's almost 1800 watts of heater, basically. The power has to be going somewhere.

[Elaine Fraser]

It's rated at 13 amps at 230 volts. Even at 8 amps it's almost 1800 watts of heater, basically. The power has to be going somewhere.

ok that makes sense. Thanks for your reply.

[Stephen Bandirola]

The calculations here are wrong, they are assuming 0% efficiency ( that means no work gets done, but we know the fans are moving air).
The power that goes directly to heat is the amount left over after the work (sucking dust) is done.

[Bill Dufour]

I will grant that the dust ending up in a bin is work and stored energy but, All the air flow continues through the filter and slowly comes to a stop as friction slows it down. I wonder how much useful work a tablesaw yields vs waste heat? Isn't thermodynamics fun.
Bill D

[Bill Dufour]

I assume while the dc is dumping heat into the shop another motor is also running a power tool and dumping even more heat into the shop.
Bill D

[Bill Dufour]

An electric motor is roughly 50% efficient so a 750 watt one hp motor uses about 1500 watts of input energy. The extra 750 watts goes to heat. The 750 watts goes into entrophy and thus heat.
Bill D

[Frank Pratt]

An electric motor is roughly 50% efficient so a 750 watt one hp motor uses about 1500 watts of input energy. The extra 750 watts goes to heat. The 750 watts goes into entrophy and thus heat.
Bill D

I'll qualify that. The average universal motor (the kind with brushes) is in the neighborhood of 50% efficiency. Induction motors are much better, probably about 90% for a good 3 HP motor. Large induction motors are around 95% efficient.

Steve's point about stirring up the hot air at the ceiling no doubt adds to the effect, at least in the summer. And any other motor that is running also adds heat. Assuming no exchange of outside air, 100% of the power consumed by any motor & lighting loads in the shop will be transformed into thermal energy, or heat.

If I forget to turn off the lights in my shop overnight, it can raise the temperature by about 4*C by morning. That experiment has been foolishly repeated several times

[Jamie Buxton]

Yeah, dust collectors generate heat. A V3000 has a 3 hp motor. It draws 13 A at 230 volts, which is about 2 kilowatts. Y'know the electric space heaters that plug in an ordinary outlet? They come in various sizes, but many put out 1000 watts of heat. So your V3000 is putting out as much heat as two of those.

[Elaine Fraser]

No wonder it gets so warm. Thanks for your reply. I wanted to make sure I didn’t have anything wrong. Cheers

[Bill Dufour]

Entropy, the entire universe is going to hell.
Bill D

[Chris Fairbanks]

My CV max is 5HP and it’s using a little over 3k watts. I can really feel it in my 3 car garage.

[glenn bradley]

Run your shop vac for a few minutes. Put your hand at the exhaust port. Back when we took care of houses I would use a shop vac exhaust stream to hurry along a defrosting freezer. Moving air makes friction, friction makes static and heat. After running my 2HP cyclone for quite awhile the motor is not noticeably 'hot' but, the moving air is nice and warm.

[Bruce Wrenn]

Compressing air heats it up, which is what the blower does.

[Prashun Patel]

This is an opportunity to consider venting it outside. I have done that, and it is AWESOME in terms of space saving, noise reduction, cleanliness. Mine vents zero heavies outside - just noise.