Advice on air vent.

Advice on air vent.

PostBy: Dave 1234 On: Tue Sep 24, 2013 8:57 pm

Veteran plumbers,
I should have an 18'' run of pipe before my spirol air scoop. But ......can the air be extracted with a shorter run of pipe leading to the vent ?
System is one mono loop of 1 1/4 and one loop of 1''.
The spirol vent worked great before but now I need to do a little change and if it will work with a shorter lead it is way neater to plumb in .

Thanks, Dave.
Dave 1234
 
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Re: Advice on air vent.

PostBy: Rob R. On: Tue Sep 24, 2013 9:17 pm

My Spirovent instructions say that it must be mounted in a horizontal pipe, but that a minimum amount prior to the unit is not required.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: Advice on air vent.

PostBy: blrman07 On: Wed Sep 25, 2013 8:56 am

The question to be considered is the flow rate. The faster the flow rate the longer it will take for it to scoop the air from the water. Length of pipe doesn't matter. Flow rate matters. If it was working before it's a good bet that your flow rate through the system is just fine.

Rev. Larry
blrman07
 
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Baseburners & Antiques: rebuilding a 1906 March Brownback Double Heater, reblacking a UMCO 1920's Pot Belly
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.


Re: Advice on air vent.

PostBy: mikeandgerry On: Wed Sep 25, 2013 2:27 pm

I have a vertical pipe mounted Spirovent. It's just configured with a lateral arm to mount in a vertical pipe stack. The lateral arm of it is only about 5-6" long.
mikeandgerry
 
Stoker Coal Boiler: Axeman-Anderson Anthratube 130-M

Re: Advice on air vent.

PostBy: Dave 1234 On: Fri Sep 27, 2013 4:41 pm

Thanks for the advice and in-put. :) Looks like this will be an easy swap.

Dave
Dave 1234
 
Stove/Furnace Make: EFM
Stove/Furnace Model: 520