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