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View Full Version : Heating, Ventilation, Air Conditioning (HVAC): Home Inspection and Commercial Inspection



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  1. Propane supply line from tank to home
  2. B-Vent in pantry closet
  3. Location of furnace and hot water heater
  4. A new one on me, 2 ac systems reversed
  5. Return air in kitchen
  6. Clothes dryer in bedroom
  7. Return Air
  8. Can't see ductwork in attic??
  9. Gas pipe extending from the sub-structure
  10. ever seen this?
  11. gas water heater in sealed garage closet
  12. Is duct insulation considered a combustible
  13. Surprise, surprise
  14. Black air filter
  15. Heat pump testing in summer
  16. Drilling a hole in a furnace vent for energy audit
  17. Underground abandoned oil tank
  18. CSST all the way to the heater
  19. A 95%+ furnace - flue in a tonwhouse.
  20. Flue pipe turned downward
  21. Garage ventilation or lack thereof.
  22. Furnace pulling combustion air from attic
  23. Boiler clearance
  24. ASTM E 84 vs UL2043
  25. Bleeding Condensate Drain Line
  26. 2 Flues
  27. Black iron pipe for cooling tower lines
  28. Foamed insulation at furnace
  29. What is this "alarm device"?
  30. Condensate line termination
  31. Exposed duct work at exterior
  32. Unknown Flue Pipe
  33. Flex flu pipe
  34. pipes in hvac return
  35. screen on furnace intake
  36. PVC pipe on HE furnace
  37. Gas Vent to Window Clearance
  38. Damper
  39. FP Thermostat
  40. R22 vs R410 warning ...?
  41. What would cause this
  42. furnace condensate and sump pump
  43. Plainspoken HVAC Tech
  44. dryer closet vented to outdoors?
  45. CPSC - Goodman Vent Pipes
  46. I can still smell the fuel oil
  47. Heat Pump vs. AC
  48. Exhausts house air?
  49. Air/handler in Attic
  50. CO detector
  51. B vent clearance
  52. AC register box openings
  53. Rusty ground air ducts
  54. Need source for this grate
  55. squished flue liner?
  56. Furnace Flue Questions
  57. 1 inch clearance to combustibles
  58. testing condensate pumps
  59. Primary Condensate Problem
  60. Asbestos tape
  61. High Humidity with Heat Pump
  62. mystery supply registers
  63. Return Air
  64. White powder below flue
  65. Have you ever seen this set up?
  66. Styrofoam blocks supporting furnace
  67. Smoke Alarm
  68. Flue Attachment Mystery
  69. Furnace vent in return air
  70. Anyone know the age and Ton for A/C unit
  71. HVAC Size? - Preston's guide?
  72. Partial Pan under Gas air/handler
  73. LENNOX Complete Heat HM30 combination heating system
  74. Garage Filter Compartment Door
  75. Crown furnace age?
  76. Furnace Closets
  77. Gas Furnaces
  78. Secondary condensate line
  79. Flex duct connections
  80. What gas fumes?
  81. How Old is This GE Compressor?
  82. Concord furnace age
  83. Furnae vent
  84. Condensing Unit Clearances
  85. Gravity roof vent help - texas coast 120mph exp C
  86. Filter Slot over attic stairs
  87. Condensate Drain Line
  88. Crawlspace vents
  89. Unlined Return Duct
  90. HAZARD: Improper fan-motor replacement wiring 'methods'
  91. Flue Vent Thru Roof
  92. Need to replace Goodman ducts
  93. CSST
  94. Cracks me up!!
  95. Unidentified pipe
  96. a little help here please
  97. HVAC unit controls light fixture
  98. Must have or Nice to have
  99. Condenser unit hold down
  100. Drain pipe material
  101. Screen needed
  102. Another pic
  103. Flex vent
  104. 240 Volt Cord Connected Electric Construction Heaters
  105. furnace venting on ac unit
  106. A/C secondary drain line
  107. Furnace in garage
  108. Garage furnace
  109. Electrical running through supply duct
  110. Frosty the Heat Pump
  111. Direct Venting through a chimney wall
  112. Moisture on Windows
  113. Do not view while eating or drinking
  114. condensing furnace draft fan
  115. Heat pump shutting off
  116. Proximity of exhaust fan to FA register
  117. Chrysler Furnace Age?
  118. Rust on 1 of 2 exhaust vents
  119. Furnace Vent to Window Clearance
  120. gfci outlet on furnace
  121. Burners immediately below A coil?
  122. Cat 1 Venting
  123. CODE FOR OUTLETS NEAR AC UNITS
  124. Supply duct through joist cavity
  125. convector intake blocked
  126. Heat pump return vent
  127. Age of Lennox Heat pumps
  128. New Style Furnace Disconnect
  129. Location of A/C Evaporator Coils At Downdraft Furnace
  130. HRV - Failure To Understand The Concept
  131. Age of Temco wall furnace
  132. Would you write this up ? See photo
  133. Vent near window
  134. flex ducts in concealed space?
  135. vent repair?
  136. trap primer?
  137. Ductless furnace system
  138. Clues to finding buried oil tanks.
  139. Venting
  140. oil to gas steam heat conversion
  141. Age for Moncrief (Luxaire) Furnace
  142. Dryer exhaust eroding masonry wall
  143. UV Filter Light
  144. Condensate line question
  145. Oil fill clearance requirements
  146. Gas pipe over flue vent - gas pack
  147. Inspecting & Testing an A/C's Performance
  148. Furnace B Vent Temperature
  149. A/C waterheater combo
  150. A/C waterheater combo
  151. Exhuast Gases from Condensate Tube
  152. Looking for info on condensing furnace.
  153. Can furnace combustion air be pulled from attic
  154. Furnance Vent
  155. Combustion Gas Tester False Positives
  156. frost on suction line
  157. Rust on furnace vent
  158. Maytag Heat Pump Age
  159. General rule for sizing gased forced air units
  160. Supply venting into garage
  161. Ice termites
  162. old humidifier?
  163. Heat loss
  164. conjoined furnaces
  165. Client Not Happy
  166. Secondary return grill location in laundry room.
  167. White Powder From Vents Maytag Furnace
  168. What is this
  169. High efficiency furnace
  170. Why A/C can't be tested in the winter
  171. Holes in A/C coil
  172. Copper pipe hangers
  173. 90% Efficiency Furnace
  174. Commercial Restroom Ventilation Requirements
  175. Getting quotes on HVAC system for my own home
  176. furnace T
  177. Silly question about heating
  178. Ice House Heater not firing...
  179. Inspectors responsibility?
  180. Flue pipe exposed in bedroom
  181. furnace in attached shop
  182. re; checking the electric furnace on heat pump.
  183. Vent too long?
  184. Fire blocking around B vent
  185. new boiler circulator chirps/meows
  186. size of unit
  187. which vent on top
  188. tankless & high% FAH vent placement restrictions
  189. Programmable thermostats burning out?
  190. Heat Pump Inspections
  191. Another return air question
  192. Good intentions but...
  193. Tiger Loop Question
  194. Yet another return air question
  195. 3-phase for AC compressor
  196. condensate drain requirements
  197. condo heat pump
  198. evap core corrosion
  199. Condensate drain into DWV
  200. Who would actually do this?
  201. gas furnace venting
  202. Conventional Gas Furnace Question
  203. It bears repeating...
  204. SERVICE SWITCH BY GAS JOINT
  205. Vent pipe material
  206. Scorching at Miller Furnace Manifold
  207. CatIV furnace venting near compressor
  208. Exhaust Pipe leak
  209. Furnace Ducting Work?
  210. inspection boilers
  211. What would you call this?
  212. Wood & Oil Furnace in same flue
  213. Propane Systems
  214. Would a heat pump do this ? Have not seen before
  215. How not to do an air return
  216. HVAC System
  217. FURNACE VENT PIPE IN BEDROOM
  218. Water Heater Age
  219. AC unit not tested due to cold weather.
  220. A/C EER
  221. Testing for CO near the plenum
  222. Exposed flexible duct passing through floor (SpacePak)
  223. Two appliances connected into single vent
  224. Clearances
  225. What is this? Part of a buried oil tank?
  226. Intake & Exhaust question
  227. Three gas units on one vent?
  228. Heater in Crawlspace
  229. Z Flex Improper installation
  230. Metal duct near crawl space floor
  231. In Floor and Baseboard
  232. Return vent locale
  233. thermostat wiring splice
  234. Home-built boiler works well
  235. Gas Fired Residential Furnace Power Cable
  236. Thermostat Location
  237. Can you find the date of manufacture on an ac unit like a water heater or furnace?
  238. Oil refractory
  239. Think Outside the Box
  240. The Anti-Trap
  241. Return Air
  242. Furnace / Boiler Shutoff Location
  243. Vent stack on boiler
  244. Register for Makeup and Combustion Air
  245. venting
  246. OLDER THERMOSTAT AND NEW CONDENSER
  247. black iron and galvanized pipes
  248. Venting question
  249. Air circulation fan
  250. Air Handler Mounting Requirements