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STATIC PRESSURE VACUUM GAGE, Magnehelic, CORN WOOD PELLET STOVE INSERT FURNACE

STATIC PRESSURE VACUUM GAGE, Magnehelic, CORN WOOD PELLET STOVE INSERT FURNACE
STATIC PRESSURE VACUUM GAGE, Magnehelic, CORN WOOD PELLET STOVE INSERT FURNACE
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Description
&nbspSTATIC PRESSURE and VACUUM GAGE
Table-top Model
(sits on top of table, stove, or furnace)

TWO APPLICATIONS:

(1) MEASURE STATIC PRESSURE of Room-Air Inside DUCTWORK;

(2) MEASURE VACUUM of Flue Exhaust Gases Inside COMBUSTION CHAMBER

PRESSURE Mesurement done in w.c. water column inches Negative or Positive Pressure

This MAGNEHELIC GAGE, has a 2-3/4 inch diameter Dial and is a "table-top" model. It comes mounted in a table-top right-angle bracket that will rest on the top of the stove, furnace, or table. Included is a 6 foot rubber hose 3/16 inch, a vacuum TEE to mount between the vacuum switch and combustion wall, and two brass fittings to measure static pressure. The brass fittings are: (1) for a surface wall-mount into duct and (2) for a right-angle extension extends into the duct wall cavity and points into the face of the air stream.

APPLICATION (1): Measure the Room-Air STATIC PRESSURE moving inside your DUCTWORK in a Forced-Air Heating System, and this will indicate your air-flow resistance inside your ductwork. This measurement is done in water column inches (w.c.) between 0.00 and 1.0" w.c. and will tell you the air resistance of your duct layout. Note the picture shows 0.50" w.c. but we have changed to 1.0"w.c. instead. However if you want the old 0.50" w.c. meter, then please desinate in your order or send us an Email. HVAC experts use it to size their ductwork and adjust the CFM speed of the room-air blower. By placing the brass fitting taps into the wall of the duct, you can connect the rubber hose between the wall tap and the gage tap (High or Positive) and take a reading. This tap is the bottom tap on the back of the gage. You can also take readings before and after the furnace, an add them together to get an External Static Pressure (ESP). It is also called the TESP (Total External Static Pressure). Note connection at the rear of the furnace before the filter will reveal a negative vacuum reading (because of fan motor draw) and accordingly you will have to use the LOW or NEGATIVE tap in the back of the meter or gage.

The External Static Pressure is the resistance (supply and return) the room-air must operate at to deliver air flow throughout your house. The greater the pressure the less the air flow. Uneccessary bends, too many turns, under sized ducts and long runs will increase pressure and reduce air flow. External Static Pressure should be around .50 w.c. Note that an External Static Pressure of over .70 w.c. might indicate a problem.

APPLICATION (2): Measure the VACUUM created inside the COMBUSTION CHAMBER of the stove, insert, or furnace to test for proper combustion. You can do that by running the rubber hose from the Negative or Low tap behind the gage through a louver in the side of the stove and hook the rubber end into a TEE provided. Need short hose leads for the TEE? Just cut 4-6 inch leads for the TEE from the 9 foot hose provided. You may not need the full 9 foot hose length anyway ... you may cut it to the run-length required. The branch sides of Tee ... one goes to vacuum switch and the other side of Tee to back-side of the combustion chamber. The Vacuum reading inside the combustion chamber of a NEGATIVE-DRAFT stove, insert, or furnace should be around .25 to .35 w.c. If there is a lower reading it may suggest there is improper combustion, too little air for combustion, a lazy flame, a clog in your Flue Exhaust Pipe, or too long a run for your flue exhaust motor to push the exhaust out the pipe run. A higher reading may suggest too much air for combustion, a hyper-active flame, a leaping flame with an inch blue-bottom, too strong of a flue exhaust fan, or flue pipe run is too short and does not create a proper back-pressure or draft. Most Flue Exhaust Kits are at least 5 feet long, go outside through a wall thimble, have a right-angle Tee with clean-out, and go up the side of the wall at least 3 feet with a 3 inch wall-siding spacer. Flue exhausting direct to the outside may make your stove run too fast and not create the proper vacuum and back-pressure for good combustion. If your stove runs too fast, it will use more fuel than it has to use and will be inefficient.

Note: the vacuum tap is located in the middle part of the back of the gage. Do not hookup to the bottom tap as that is used for static pressure.

Check out our other Corn Stove items listed in our Ebay Store.

PICTURES

  • MAGNEHELIC GAGE mounted in Bracket
  • MAGNEHELIC GAGE in bracket sitting on TABLE TOP
  • GAGE mounted in a right-angle bracket can rest on top of stove (or table)
  • Top View of Gage, Rubber Hose, T connector, Brass Fittings
  • Rear of GAGE, Top Tap is for Vacuum or LOW, Lower Tap is for Positive Pressure or HIGH
  • Rubber Hose connected to the Vacuum TEE
  • Closeup of Vacuum TEE

SHIPPING OR PERSONAL PICKUP

Customer may have it shipped by either by USPS, Fedex, or UPS, weight with the package included is 5 lbs.

SPECIFICATIONS

Weight 2 lbs, Dial is 2-3/4 inches in diameter, Stand is 4 inches wide by 5 inches high. The Stand can rest on the top of stove or furnace. When you make a Vacuum or Pressure readings you can run the 6 foot rubber hose 3/16 " diameter through a louver. A black Tee is provided to make the vacuum read. Just cut the 9 foot hose if you need jumper leads 4-6 inches long. The order includes two (2) bass fittings for static pressure reads inside the ductwork, mounted on the side of the duct and extending inward. The Magnehelic Gage pre-calibrated, range is 0.00 to 1.0" w.c. in water column inches. Picture shows 0.50" w.c. but we send a 1.0" w.c. instead. The back of gage has two taps, one for High or Postive Pressure located at the bottom of gage, and another for Low or Vacuum or Negative Pressure located in the middle or top of gage. Manufacturer: Corn Stoves of Iowa.

Remember to check our Ebay Store for other related items. For questions, comments, or to Buy-It-Now over Ebay, contact: Corn Stoves of Iowa, Corn and Wood Pellet Stove Dealer, 1312 1st Avenue, N.W., Cedar Rapids, IA 52405, 319-298-0500, FAX 319-298-0500, E-mail: Use the Ebay Ask-a-question system that is highlighted in blue located at the bottom of the listing in the far lower lefthand side .... .

Images copied from eBay: $T2eC16RHJI!E9qSO8mfqBR0GN144Ig~~60_3_351_2.JPG, $T2eC16FHJHgFFmDU0F7eBR0GN9ywGw~~60_3_351_3.JPG, $T2eC16RHJGkFFm5VzRCmBR0GOKhWm!~~60_3_351_4.JPG, $T2eC16VHJHwFG1Kcgw4(BR0GN7QU4g~~60_3_351_5.JPG, $(KGrHqVHJE!FGvgI)BC7BR0GO!2k)w~~60_3_351_6.JPG, $(KGrHqJHJCIFGrF3TuUCBR0GODP-og~~60_3_351_7.JPG, $T2eC16dHJGgFFm)fltUsBR0GQzVQrQ~~60_3_351_8.JPG
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