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Empire GWT35 Gravity-Vented Wall Furnace - Natural Gas

Empire GWT35 Gravity-Vented Wall Furnace - Natural Gas
   
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Item #: CUI-GWT35NAT
725.40
Regular Price: $892.99
Sale Price: $725.40 Free Shipping
You Save: $167.59 (19%)
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Are you out of space, but need to install a home heater fast? It's time to take a look at the GWT35 Gravity-Vented Wall Furnace from Empire. This superb space saving heater efficiently generates up to 35,000 BTUs of heat. It requires no electricity, easily retrofits, and can be recessed into a wall or mounted flush with a separately purchased kit. Best of all, it measures only 66 1/8" high x 16" W x 6" D. With the proper clearances, this heater is a phenomenal space-saving solution for your heating needs.

Features

  • Efficiently generates 35,000 BTUs of heat
  • Requires no electricity
  • Easily retrofits
  • Can be recessed into wall or mounted flush with a separately purchased Out-of-Wall Installation Kit
  • Millivolt controls
  • Built-in automatic safety shut-off
  • Natural gas and propane models available
  • 10-year warranty for combustion chamber and 1-year limited warranty for parts
  • Dimensions: 66 1/8" H x 16" W x 6" D
  • Minimum Clearances:
    • 12" from top
    • 4" from each side
    • 1 1/2" from the bottom of the unit to floor covering
Manufacturer: Empire
Part Number: GWT35NAT
UPC: 720968283139
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By Robert Gordon from albuquerque NM on November 15, 2011
installed 35,000 btu single wall furnace. Works fine, except the pilot goes out after about 24 hours of operation.
Vented directly up through flat roof with 9 feet of double wall vent pipe that is used directly from the furnace. Typical rain cap installed.
No CO and furnace seems to operate normally except when the pilot goes out.

Do you know what the problem is? The venting diagram shows insulated section of vent on roof, and transition to larger pipe. I did not do this. Is this a problem with venting, causing the pilot to go out? The voltage measurements are excellent showing the thermopile is working.
By Collin C. - NFI Master Hearth Professional on November 15, 2011

Answer:
Most commonly, a misadjusted thermopile is what causes the pilot to extinguish. As you mention, the voltage reading are within specification, so this would not be the issue.

Improper venting can cause this issue, but it is usually not a routine occurrence. The pilot will usually go out at random and not at regular intervals. Please advise if it is going out at exactly 24 hours or if there is a little more variance, say by a couple hours.

By brad hoffman from las vegas on November 15, 2011
Do you sell the vent to this? It's the type b vent system.
By Collin C. - NFI Master Hearth Professional on November 15, 2011

Answer:
We do indeed carry the type b venting for this unit and can assemble a quote for the needed pipe if you like. The unit also requires a type bw adapter to pass the pipe from the stud cavity the unit is mounted into, through the wall header and into the attic.

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