TK-D20-LP (Liquid Propane) uses a "Direct Vent System.”  With a three-inch round combustible air intake vent and four-inch round exhaust power vent.  FLASH T-KD20-LP is designed to work when indoor combustion air is not available - making it the perfect system for climate -controlled environments such as colder areas.  If you are unsure which application of indoor venting you are going to use, this is the perfect choice because all of your air options are covered.

Specifications

• Liquid Propane Input (max) - 175,000 Btu
• Liquid Propane Input (min) - 19,000 Btu
• Gas Connection - 3/4" NPT
• Water Connection - 3/4" NPT
• Water Pressure (min) - 15 psi
• Water Pressure (max) – 150 psi
• LP Gas Pressure Inlet (min) – 11” WC
• LP Gas Pressure Inlet (max) – 14” WC
• Manifold Pressure 2.3” WC
• Weight – 60 lbs.
• Dimensions - 24.5" x 16.5" x 8.3"
• Ignition - Electronic
• Electrical Supply - AC 120 V