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  1. Gas furnace....need advice
  2. Mystery lines into furnace plenum
  3. Age of condensing unit
  4. Surface rust on water heater flue???
  5. Capacity help
  6. Benjamin Boiler OB1000 (Oil)
  7. Understanding Central air distribution systems
  8. Corrosion on Air Handler?
  9. Infrared Room Heaters
  10. Anyone familiar with this type of furnace Carrier?
  11. Age of A/C unit
  12. When did they come out with B-Vent?
  13. Is this likely an underground storage tank?
  14. HVAC component needs ID
  15. Geothermal Inspection?
  16. Is this type of gas line ok, for gas log fireplace..
  17. Clay flue, oil furnace
  18. Help with Haier AC
  19. Bathroom exhaust
  20. Fireplace duct
  21. Is this Gas line Safe?
  22. Help With Amana 90% Furnace
  23. Unknown Manufacture
  24. Start-up sequence
  25. Help with Trane XE 90 furnace
  26. Heat pump repair story
  27. Hiding sloppy work
  28. Short Cycling Honeywell Thermostat?
  29. AirTemp Furnace age
  30. Duct repair
  31. Identifying a heat pump
  32. Humidificadores centrales.
  33. Clearance ?
  34. A/C Age
  35. Range hood vent pipe material
  36. Furnace mounted humidifier
  37. Condensation drain line
  38. Furnace age?
  39. Return Air and Fireplace too close
  40. AC Question
  41. Asbestos?
  42. Safety: what dangers do inspectors face inspecting oil-fired combustion appliances?
  43. Copper tubing
  44. XXth Century Zeph-air Furnace Age
  45. First 10 to reply win How to Inspecting HVAC Systems book. Merry Christmas.
  46. Exhaust Venting (help)
  47. HE intake & Exhaust
  48. Rust on Liquid Line
  49. HVAC return air and condensate line questions
  50. Cold air return
  51. What is it and what does it do???
  52. Wording for not testing AC in cold temperatures
  53. Heat Pump not performing like it should
  54. AC, onsite disconnect question
  55. Is this rust?
  56. Heater duct insulation ...question
  57. The Problem With Flexible B-Vents
  58. Condensate drain line
  59. Furnace Date Codes
  60. Heat Pump System Air Filter Returns
  61. Brine Stains on th
  62. AC condenser fan ran when thermostat was in heat mode on "fan" setting
  63. Armstrong Furnace Age?
  64. Appliance Connector Label Photo?
  65. Boiler explosion in Mass.
  66. Water Heater Vent Pipe Splice...
  67. CO testing
  68. No suction at return air vent
  69. Need some help on furnace age. Metzger / Milwaukee Thermoflow
  70. Condensate Pump, return distribution systems.
  71. Refrigerant line question
  72. Reconstructing model number
  73. Verifying Capacity
  74. Well Conditioned Attic
  75. Water heater flue - is this allowed?
  76. Quietside age?
  77. Weil-Mclain co water heater prob.
  78. Comfortstar unit
  79. 410A Condenser and R22 Evaporator Coil
  80. Return air
  81. Contractors don't read
  82. Testo 560
  83. No Maufucturer Name Listed
  84. Dead body
  85. Oil leakage observed at AC coolant line at bonnet -- too cold to run unit
  86. Gas line from meter to interior of home
  87. Todays gem
  88. Old American Standard boiler help
  89. Boiler vent
  90. Condensate discharge
  91. Rooftop a/c unit condensate discharge
  92. L vent to single wall?
  93. Flue Configuration
  94. Record high temps forcast for SoCal
  95. Condensate lines
  96. Acceptable?
  97. Who to refer?
  98. Help your AC with mist???
  99. Any other reason for burner wont stay lit?
  100. Combustion Analysis
  101. Do you measure Delta T?
  102. Goodman tonnage
  103. Exterior A/C condenser clearances
  104. Gas line in front of vent
  105. Chrysler Airtemp Blower Motor
  106. Failed Inducer Motor Replacement
  107. Another unsuspecting loose connection
  108. A loaded question # 2
  109. A loaded question
  110. Thorough HVAC inspection by HVAC technician
  111. Evaporator ages
  112. Purpose of vent??
  113. Testing Furnace and A/C
  114. Replacing diesel with gas furnace
  115. A plastic vent inquiry
  116. House built in 1971 - Do these ducts look like they contain asbestos ?
  117. Dryer Vent Length
  118. Furnace in closet
  119. Age of Furnace
  120. How to rewire furnace from stoneage
  121. Century Age
  122. Minimum clearance of baseboard
  123. How many gas vents into 6" flue?
  124. Metal Chimney Clearance
  125. Question For Ben Gromicko
  126. Is it worth replacing electric baseboard?
  127. Age please?
  128. HVAC wiring
  129. Is this pipe accectable for fireplace gas line?
  130. payne package unit
  131. Down Periscope or Crazy A/C Venting Gone Wrong?
  132. combustion air and exhaust appear merged
  133. Close the combustion air...
  134. Gas only fireplace hearth requirments
  135. Age Code App
  136. Ducts to fresh air
  137. Flex hose connected to fireplace manifild....Need advice
  138. Water heater vent ducting...need advice
  139. Does this Heater vent need a heat collar?
  140. Exposed chimney in bedroom
  141. David or Charley
  142. Venting Narrative
  143. AC differential temps
  144. What's Your Narrative on This One?
  145. Age of furnace
  146. secondary drain on a vertical unit
  147. Help With Geo-Thermal Heat Pump
  148. VERY humid AC air
  149. Exposed B-Vent in closet
  150. Need an opinion
  151. Unknown thingy on water heater
  152. Crane heating unit age?
  153. Hot water Boiler age (Bryant)
  154. Sidewall Vents in Vertical Position
  155. First For Me
  156. waterless traps
  157. HVAC Plumbing
  158. Old oil furnace
  159. Tempstar - Burner problems?
  160. Home Heating Oil Tanks. Another InterNACHI inspection-related article.
  161. best technique opinions
  162. Burn baby Burn!!
  163. Dryer vent screen
  164. Older Bard AC condenser
  165. Off Season Testing
  166. Maratherm AC tonnage and age
  167. Boiler in garage Part II
  168. Excessive moisture in exhaust pipe.
  169. When would a vent be required in a bathroom?
  170. Hot duct?
  171. breaker too large for AC
  172. Never seen this done before - stripped the outside off of flue
  173. Boiler / W/H in garage?
  174. CSA approved
  175. Anybody seen these yet?
  176. Need age of Miller Gas Furnace
  177. Need advice
  178. Need advice
  179. Help
  180. Broan
  181. One just for Charley
  182. Weil-McLain Boiler Age help requested
  183. Whats the problem?
  184. Geothermal
  185. Disconnected AC ducing....Need feedback
  186. only have seral #
  187. Is my A/C evaporator broken?
  188. Furnace Maintenance - Keep Your Furnace Clean!
  189. Do you thinks it will pass inspection?
  190. York age
  191. Roof top heat pump units
  192. Water trap?
  193. Age on Kewanee boiler
  194. air duct penetrating garage wall
  195. Furnace in attic
  196. Water filled ducting
  197. Maybe next time around......
  198. AAF
  199. disconnect for red package unit
  200. Mildew on mastic @ plenum 10 month home
  201. Fan A/C compressor
  202. Age of unit
  203. Gas Pack Unit
  204. Does any one know how to read this
  205. high humidity and floor lifting
  206. Ducane A/C Compressor age
  207. Heil - Intl Comfort
  208. Source to Determine HVAC Manufacture Date
  209. Coleman condenser age
  210. need to find age of free standing furnace
  211. New Roof...New Siding...New HVAC...
  212. Kelvinator Furnace age?
  213. Need code reference for AC condensate drain line
  214. Age and tonage of split central air unit handler
  215. Upper Element
  216. Cast iron Galaxy boiler age?
  217. Help with age
  218. Age of a Luxaire(?) Unit
  219. Age of Carrier A/H
  220. Help with Wiring
  221. Combination water heater/space heater
  222. Sharp-GE A/C recall
  223. Furnace exhaust
  224. Buderus date code
  225. How Old - Airtemp nat gas furnace?
  226. Air exchanger recall
  227. duct work
  228. Water Damaged surfaces within the HVAC return - do you test?
  229. Any chance this is not Asbestos ?
  230. Peerless boiler age
  231. another return air...
  232. Permits ignored. Re-do costs $$$. Whose fault?
  233. Code - Backup condensate drain line being plumbed to exterior
  234. Heat exchangers - visible defects
  235. A/C compressor fins?
  236. Age of Coleman AC
  237. What would you say about this vent placement?
  238. Age of Fedders unit.
  239. Cold air return duct placement
  240. Thermostat?
  241. InterNACHI HVAC Training Video (Indexed)
  242. A little rattle.........
  243. Furnace flue
  244. Age of air conditioners
  245. Partially Buried Oil Tank in Basement Question
  246. What is the Free Area of Register Covers?
  247. How not to install a return air
  248. Well head or fill pipe?
  249. I don't understand
  250. Heil oil furnace age