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  1. Tuesdays brain twister
  2. Freshair supply for electric furnace
  3. Duct Connected to Chimney
  4. Thoughts
  5. bypassing a thermo stat
  6. Another use for secondary drain
  7. Propane tank clearance from overhead heating vent
  8. Hearth requirement pellet stove?
  9. Charley B or David A
  10. Old oil burner furnace abandoned in crawlspace
  11. Power vent + direct vent?
  12. Age of Fedders unit.
  13. Vent for floor heater
  14. Air Handler rating
  15. Gas Firplace fog
  16. Fujitsu Mini Split
  17. HVAC Question
  18. Carrier Size
  19. Gibson/Nordyne ?
  20. Haier Condenser Manufacture Date
  21. Plastic Gas pipe in furnace room
  22. Flue exhaust in chimney for furnace
  23. Is this right?
  24. Dating a Goodman
  25. furnace date for Air ease?
  26. Is a drip leg required on a gas line to the furnace or the water heater in Calif?
  27. Appliance Date
  28. Never had this...
  29. Exhaust/intake vent under a deck
  30. Did I break it? ...Heat pump
  31. Heat pump
  32. Thermostats that make a clicking noise
  33. Green Ductwork
  34. Condensate drain
  35. Blower assembly at termination of dryer duct...
  36. Dornback Furnace
  37. Sweating
  38. Which outside ac unit went where?
  39. Ac Date?
  40. Poor cooling, not very old outside unit evidently performed well
  41. Dampers in Heat Ducts
  42. Unusual Venting
  43. Malibu Slant/Fin Boiler Age?
  44. How old am I?
  45. HVAC unit - air blowing out of cabinet
  46. electric baseboard heater
  47. Furnace room door opens in
  48. Clare furnace age
  49. Trane System Blower Motor
  50. Unreadable Data Plates
  51. PVC Dryer Vent
  52. Electric Water Heater
  53. Electric Water Heater
  54. Need help dating Water Furnace Geothermal
  55. Florida Heat Pump Question
  56. 1967 Electrical furnace
  57. Temperature differential
  58. Why Would There Be A Hot Spot On This Furnace?
  59. What are these parts on a boiler?
  60. Screw in the cooper pipe of the boiler???
  61. Service switch
  62. Furnace burn
  63. Not for Larson's eyes
  64. GE HVAC Date Code - age needed?
  65. Soot-like ceiling marks
  66. Through wall mold ac
  67. Water Heater Flue set up
  68. HVAC with plastic exhaust vent pipe ... need advice, Pics incuded
  69. Oversized
  70. Painted furnace flue?
  71. Suspected asbestos
  72. Red flags for central split systems
  73. Need Some Help With The Age Of An American Standard Boiler Please
  74. Intake
  75. Singer a.c.
  76. High rise condo HVAC question
  77. Corrugated plastic water heater flue? Lochinvar DVN040-1 unit
  78. Plastic for furnace....vent ducting
  79. AHIT Opinion On Inspecting Air Cooled AC's
  80. Scorch marks
  81. humming sound
  82. Lennox pulse
  83. Drywall separating the enclosure from the Attic
  84. Special Thanks from the Building Intelligence Center
  85. And the winner is....
  86. Burnt my arm
  87. Btu output
  88. Age of Day and night furnace
  89. Heat pump AHU
  90. Message Board responses
  91. Shared venting
  92. Gas Fireplace using Class A vent
  93. Amana Heat pump age...9601275433
  94. Age for Florida Heat Pump (FHP)
  95. mor-flo air heater age
  96. Tell me what you see or would tell your client
  97. Boiler Question
  98. New, free, downloadable HVAC Inspector logo.
  99. I'm no HVAC tech...
  100. Boiler
  101. Floridians learning about boilers?
  102. Interesting statistic about CO deaths
  103. Crystals in vent.
  104. Water Heater Tied into Boiler
  105. Small vent
  106. Type B vent termination question
  107. What is this for? Fresh air intake or exhaust?
  108. Age of GWA boiler
  109. Spray Foam and Fiberglass Insulation
  110. Patio Enclosure distribution
  111. Odd stack of appliances
  112. Crane Air Handler Age
  113. Inline Duct Fans
  114. Sidewall venting height requirements
  115. Bosch FHP Age
  116. Humidifier ?
  117. High Efficiency Gas furnace Vent
  118. Heat pump
  119. What do you say about this??
  120. Anybody help with the filter on this HVAC system?
  121. Need to identify age of an Amana A/C Condenser
  122. Air handler drip pan
  123. Air handler support
  124. York condenser age? Old for house....
  125. Call it out or not?
  126. Refrigerant line coil
  127. Gas Furnace/Water Heater Vent Issue?
  128. Heat pump
  129. How Do You Determine if Radiant Heat is Working
  130. Hydrotherm boiler age?
  131. See anything?
  132. Need help identifying age and size of Weather King Air Handler
  133. Rheem furnaces
  134. Furnace performing as intended
  135. Water Furnace age and TPR question
  136. Compressor covers
  137. Help needed with oil burner vent
  138. 4 appliances into 1 vent
  139. Open Vent?
  140. Question about gas furnace I inspected yesterday
  141. Ice on B-vent
  142. Just put the flue.....right there
  143. Furnace Date Help
  144. hydronic forced air furnace?
  145. Laars boiler in crawlspace
  146. Total Cluster ???????
  147. New InterNACHI article: Homeowner Maintenance: Changing the HVAC Filter.
  148. U.S. drops rule requiring more efficient furnaces
  149. No inspection today?
  150. Chaaaarleeeey
  151. An Apparent Short?
  152. Amp draw
  153. HE and WH power vent <18" from electric meter
  154. Furnace chimney?
  155. High eff furnace flue
  156. Ghosts?
  157. Lennox Furnace
  158. Unitary AC
  159. Second furnace in garage with register?
  160. What are these?
  161. Inspecting air flow balance
  162. Updated InterNACHI Gallery graphic of the expansion tanks for the boiler system
  163. Lennox Equipment Nomenclature
  164. Have you seen this heater attachment?
  165. Flue Venting Gone Wild
  166. Make up on externally vented furnace?
  167. Miller Air Handler age?
  168. Heat Exchanger
  169. Exterior of HVAC - Attic ducting...coming apart...Need advice
  170. Fireplace
  171. Watched exchanger being inspected
  172. Insulated ducting
  173. Age for Dayton furnace needed.
  174. Help with furnace age
  175. Age of "Water Furnace" Geo-Thermal Heat-Pumps
  176. Signature Manufactured for Montgomery Ward
  177. Heat pump flow
  178. HVAC
  179. heat pump cycling before reaching set point
  180. Temp-O-Matic Furnace Age
  181. baseboard heaters
  182. Single Wall vent pipe question
  183. condenser platform
  184. Heat Pump moisture
  185. Heat pump or not!!
  186. High efficiency furnace vent
  187. Need Armstrong furnace age
  188. Wards Heater age
  189. Furnace flue wind cap ?
  190. Heat pumps what is wrong with this pic
  191. York Help
  192. Un-capped vent...does it need a cap ?
  193. What age is this
  194. Venting
  195. turning on gas
  196. Homemade AC System
  197. Would you write this up
  198. Does anyone know what this is?
  199. CO Gas Detectors and Analyzers for home inspections
  200. HRV trumps "fan only" mode?
  201. American Standard/Trane Furnace age please?
  202. Trane Aux. Heat ran for 2 hrs.
  203. York age please
  204. Drops per run of supply air duct
  205. Defective chimney
  206. 2 AC units and 1 air handler
  207. Duct from supply to return
  208. Underground oil storage tank
  209. Anybody offer acid tests to refrigerant systems?
  210. Furnace adequecy
  211. Heating System Shut Off Switch Location
  212. Furnace backdrafting into home.
  213. Duomatic Olsen furnace age??
  214. Valve in condensate line.
  215. Vacations
  216. Need some advice
  217. Mismatched System
  218. under pressure.
  219. Soffit venting for bath fan OK?
  220. Ancient Space Heater
  221. PVC 40 fittings used for HE furnace vent
  222. AC older than House?
  223. NACHI.TV releases free online training video "Find the Crack in the Heat Exchanger"
  224. how old is this furnace?
  225. LP Gas Tank at Window
  226. AC reset question
  227. Heat exchanger inspections
  228. Air Return question
  229. positive pressure
  230. ABS acceptable for combustion vent
  231. Heil Air Handler Size Help
  232. Heat Exchanger?
  233. geothermal heat/cool
  234. Mercury Thermostat
  235. Secondary condensation Cap question
  236. Defective Installation HVAC
  237. How many tons are needed?
  238. Help Identify
  239. Dryer Vent Pipe
  240. New use for Cicken Pot Pie Pan
  241. Water htr close to furnace
  242. National US Radiator
  243. Boiler noise?
  244. Hot spots on A/C?
  245. Say Good by to bulky RTU's
  246. Old
  247. What is the Manufacture
  248. Water Heater vent pipe connection...Need advice
  249. Air returns in wall chases
  250. Looks like a painted Transite duct vent running thru the Bedroom closet