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