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  1. Is this Gas line Safe?
  2. Help With Amana 90% Furnace
  3. Unknown Manufacture
  4. Start-up sequence
  5. Help with Trane XE 90 furnace
  6. Heat pump repair story
  7. Hiding sloppy work
  8. Short Cycling Honeywell Thermostat?
  9. AirTemp Furnace age
  10. Duct repair
  11. Identifying a heat pump
  12. Humidificadores centrales.
  13. Clearance ?
  14. A/C Age
  15. Range hood vent pipe material
  16. Furnace mounted humidifier
  17. Condensation drain line
  18. Furnace age?
  19. Return Air and Fireplace too close
  20. AC Question
  21. Asbestos?
  22. Safety: what dangers do inspectors face inspecting oil-fired combustion appliances?
  23. Copper tubing
  24. XXth Century Zeph-air Furnace Age
  25. First 10 to reply win How to Inspecting HVAC Systems book. Merry Christmas.
  26. Exhaust Venting (help)
  27. HE intake & Exhaust
  28. Rust on Liquid Line
  29. HVAC return air and condensate line questions
  30. Cold air return
  31. What is it and what does it do???
  32. Wording for not testing AC in cold temperatures
  33. Heat Pump not performing like it should
  34. AC, onsite disconnect question
  35. Is this rust?
  36. Heater duct insulation ...question
  37. The Problem With Flexible B-Vents
  38. Condensate drain line
  39. Furnace Date Codes
  40. Heat Pump System Air Filter Returns
  41. Brine Stains on th
  42. AC condenser fan ran when thermostat was in heat mode on "fan" setting
  43. Armstrong Furnace Age?
  44. Appliance Connector Label Photo?
  45. Boiler explosion in Mass.
  46. Water Heater Vent Pipe Splice...
  47. CO testing
  48. No suction at return air vent
  49. Need some help on furnace age. Metzger / Milwaukee Thermoflow
  50. Condensate Pump, return distribution systems.
  51. Refrigerant line question
  52. Reconstructing model number
  53. Verifying Capacity
  54. Well Conditioned Attic
  55. Water heater flue - is this allowed?
  56. Quietside age?
  57. Weil-Mclain co water heater prob.
  58. Comfortstar unit
  59. 410A Condenser and R22 Evaporator Coil
  60. Return air
  61. Contractors don't read
  62. Testo 560
  63. No Maufucturer Name Listed
  64. Dead body
  65. Oil leakage observed at AC coolant line at bonnet -- too cold to run unit
  66. Gas line from meter to interior of home
  67. Todays gem
  68. Old American Standard boiler help
  69. Boiler vent
  70. Condensate discharge
  71. Rooftop a/c unit condensate discharge
  72. L vent to single wall?
  73. Flue Configuration
  74. Record high temps forcast for SoCal
  75. Condensate lines
  76. Acceptable?
  77. Who to refer?
  78. Help your AC with mist???
  79. Any other reason for burner wont stay lit?
  80. Combustion Analysis
  81. Do you measure Delta T?
  82. Goodman tonnage
  83. Exterior A/C condenser clearances
  84. Gas line in front of vent
  85. Chrysler Airtemp Blower Motor
  86. Failed Inducer Motor Replacement
  87. Another unsuspecting loose connection
  88. A loaded question # 2
  89. A loaded question
  90. Thorough HVAC inspection by HVAC technician
  91. Evaporator ages
  92. Purpose of vent??
  93. Testing Furnace and A/C
  94. Replacing diesel with gas furnace
  95. A plastic vent inquiry
  96. House built in 1971 - Do these ducts look like they contain asbestos ?
  97. Dryer Vent Length
  98. Furnace in closet
  99. Age of Furnace
  100. How to rewire furnace from stoneage
  101. Century Age
  102. Minimum clearance of baseboard
  103. How many gas vents into 6" flue?
  104. Metal Chimney Clearance
  105. Question For Ben Gromicko
  106. Is it worth replacing electric baseboard?
  107. Age please?
  108. HVAC wiring
  109. Is this pipe accectable for fireplace gas line?
  110. payne package unit
  111. Down Periscope or Crazy A/C Venting Gone Wrong?
  112. combustion air and exhaust appear merged
  113. Close the combustion air...
  114. Gas only fireplace hearth requirments
  115. Age Code App
  116. Ducts to fresh air
  117. Flex hose connected to fireplace manifild....Need advice
  118. Water heater vent ducting...need advice
  119. Does this Heater vent need a heat collar?
  120. Exposed chimney in bedroom
  121. David or Charley
  122. Venting Narrative
  123. AC differential temps
  124. What's Your Narrative on This One?
  125. Age of furnace
  126. secondary drain on a vertical unit
  127. Help With Geo-Thermal Heat Pump
  128. VERY humid AC air
  129. Exposed B-Vent in closet
  130. Need an opinion
  131. Unknown thingy on water heater
  132. Crane heating unit age?
  133. Hot water Boiler age (Bryant)
  134. Sidewall Vents in Vertical Position
  135. First For Me
  136. waterless traps
  137. HVAC Plumbing
  138. Old oil furnace
  139. Tempstar - Burner problems?
  140. Home Heating Oil Tanks. Another InterNACHI inspection-related article.
  141. best technique opinions
  142. Burn baby Burn!!
  143. Dryer vent screen
  144. Older Bard AC condenser
  145. Off Season Testing
  146. Maratherm AC tonnage and age
  147. Boiler in garage Part II
  148. Excessive moisture in exhaust pipe.
  149. When would a vent be required in a bathroom?
  150. Hot duct?
  151. breaker too large for AC
  152. Never seen this done before - stripped the outside off of flue
  153. Boiler / W/H in garage?
  154. CSA approved
  155. Anybody seen these yet?
  156. Need age of Miller Gas Furnace
  157. Need advice
  158. Need advice
  159. Help
  160. Broan
  161. One just for Charley
  162. Weil-McLain Boiler Age help requested
  163. Whats the problem?
  164. Geothermal
  165. Disconnected AC ducing....Need feedback
  166. only have seral #
  167. Is my A/C evaporator broken?
  168. Furnace Maintenance - Keep Your Furnace Clean!
  169. Do you thinks it will pass inspection?
  170. York age
  171. Roof top heat pump units
  172. Water trap?
  173. Age on Kewanee boiler
  174. air duct penetrating garage wall
  175. Furnace in attic
  176. Water filled ducting
  177. Maybe next time around......
  178. AAF
  179. disconnect for red package unit
  180. Mildew on mastic @ plenum 10 month home
  181. Fan A/C compressor
  182. Age of unit
  183. Gas Pack Unit
  184. Does any one know how to read this
  185. high humidity and floor lifting
  186. Ducane A/C Compressor age
  187. Heil - Intl Comfort
  188. Source to Determine HVAC Manufacture Date
  189. Coleman condenser age
  190. need to find age of free standing furnace
  191. New Roof...New Siding...New HVAC...
  192. Kelvinator Furnace age?
  193. Need code reference for AC condensate drain line
  194. Age and tonage of split central air unit handler
  195. Upper Element
  196. Cast iron Galaxy boiler age?
  197. Help with age
  198. Age of a Luxaire(?) Unit
  199. Age of Carrier A/H
  200. Help with Wiring
  201. Combination water heater/space heater
  202. Sharp-GE A/C recall
  203. Furnace exhaust
  204. Buderus date code
  205. How Old - Airtemp nat gas furnace?
  206. Air exchanger recall
  207. duct work
  208. Water Damaged surfaces within the HVAC return - do you test?
  209. Any chance this is not Asbestos ?
  210. Peerless boiler age
  211. another return air...
  212. Permits ignored. Re-do costs $$$. Whose fault?
  213. Code - Backup condensate drain line being plumbed to exterior
  214. Heat exchangers - visible defects
  215. A/C compressor fins?
  216. Age of Coleman AC
  217. What would you say about this vent placement?
  218. Age of Fedders unit.
  219. Cold air return duct placement
  220. Thermostat?
  221. InterNACHI HVAC Training Video (Indexed)
  222. A little rattle.........
  223. Furnace flue
  224. Age of air conditioners
  225. Partially Buried Oil Tank in Basement Question
  226. What is the Free Area of Register Covers?
  227. How not to install a return air
  228. Well head or fill pipe?
  229. I don't understand
  230. Heil oil furnace age
  231. WYE????
  232. Water Heater Exhaust Location with Furnace and Masonry Chimney
  233. Comfortmaker date of manufacture?
  234. Black soot in HE furnace vent
  235. Asbestos??
  236. Weil McLain CP Lookup
  237. Research into copper coils and pans
  238. Amana Furnace Age
  239. Should I run the AC?
  240. Furnace Age
  241. What is this thing in the return plenum box?
  242. Dryer vented into garage
  243. Armstrong eg6g100dc20-4 furnace problems
  244. Ducting Question....
  245. Checking the float switch
  246. Is the HRV part of the SOP
  247. Garage question
  248. exhaust pipe enlarged...a text book no-no
  249. Furnace exhaust too close to heat pump
  250. Attic upflow furnace