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



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  1. Make up air condensing on cold air return
  2. Response to 'Article'
  3. Serial number decoding help needed
  4. Fireplace insert
  5. Vent clearance
  6. "PVC" Duct In A Residential Forced Air System?
  7. Furnace Installed in Garage
  8. Order of Vented Appliances
  9. Furnace vent type
  10. High Efficiency Furnace
  11. Heil Furnace Vintage Help
  12. Looked everywhere can't find humidifier type
  13. Unducted toe-kick register
  14. Timer switch on furnace...
  15. Havent seen this yet...
  16. Oil Boiler Barometric Damper
  17. Newer in floor tubing
  18. Just plain stupid
  19. Furnance in Garage
  20. Open low volt wires on top of condensing unit?
  21. asbestos around register
  22. Heat exchanger at draft hood
  23. TGIF
  24. Cat IV in bedroom closet
  25. Oil Furnace age
  26. plant that thing
  27. AC into Mechanical Room
  28. Unusual AC installation
  29. Oil Boiler to tan clearance
  30. Gas line installation requirements inside furnace firebox
  31. Never Ceases To Amaze!
  32. Adjacent Oil and Gas flues
  33. Oil tank vent clearances
  34. Heat Pump
  35. Help dating an ADP air handler
  36. Corrosion at coil
  37. Humidification required in Chicago?
  38. Readily Accessable Disconnect?
  39. Make-up combustion air rqmt.
  40. Tarnished vent at oil furnace
  41. Holy BLEEP!!!
  42. Amana Furnace Age
  43. When did the mechanical code first state this?
  44. Barometric Damper
  45. Cat IV Condensate
  46. HIGH EFFICIENTCY FURNACE VENT PIPES SCREENS
  47. Furnace / water heater venting
  48. Rubber radiant tubing identification help
  49. Ceil Heat
  50. IMPROPER EXHAUST VENTS AND DRAIN PIPE
  51. filters in returns
  52. Fernco in furnace vent pipe
  53. 3" Pad Rule
  54. A/C seemed to not be working.
  55. Direct Vent Furnace Venting Downhill
  56. What kind of vent pipe?
  57. Max Vertical lift of Condensate pumps?
  58. Storm collar
  59. Chimney material. Is this an asbestos product?
  60. Geothermal System
  61. Unitary / York Air Conditioning products
  62. Help deterimine age of Armstrong packaged heat pump? Ser# A0626DMA
  63. Mitsubishi Air Conditioners
  64. Return Register on Ceiling
  65. No Return Air Plenum?
  66. Ancient Electric Furnace
  67. Help Identify duct deterioation
  68. A/C Manufacturer?
  69. LP Tank - underground installation
  70. utica Boiler age
  71. Radiant Heat systems
  72. Real quick single wall clearance Q
  73. Return air in bathroom
  74. Unknown AC manufacturer
  75. Pantina-like corrosion on condenser coil
  76. Heat exchanger, gas hot water boiler
  77. dryer duct construction
  78. Wooden plenum for unconditioned air?
  79. Filter on HVAC System
  80. Single Unit Dual Zone System
  81. Sealant on vent pipes
  82. What Is It
  83. Yikes!
  84. Electric wall mount space heaters
  85. Furnace venting, I'm on a roll
  86. Gas company red tags furnace
  87. What causes flame rollout or scorching?
  88. Whistling vent
  89. Horizontal Duct to Plenum Connection Question
  90. Venting issue
  91. Water based heat pump
  92. Dryer vent
  93. What are all these weird things in my Air Duct?
  94. Convection heating?
  95. Mixed vent materials
  96. boiler installed in garage space - sort of
  97. Singer Furnace Age
  98. Condensate
  99. Max bends of a furnace flue
  100. Is this a heat pump?
  101. water heat/space heat combo
  102. AC
  103. This can't be right
  104. age of Weil Mclain boiler
  105. Need Help finding Make of Furnace-A/C unit
  106. Exhaust location
  107. Any ideas what this could be?
  108. Hallmark Furnace age
  109. Combustion air in small room with open ceiling
  110. HVAC ceiling mounted units
  111. Rectangular flue pipe
  112. 240V hydronic heating pump?
  113. Serviceman switch
  114. Ex. heat pump unit, now with standard gas furnace
  115. Age of a Carrier Condenser
  116. Comments please
  117. Do you see a problem?
  118. Need Help for FHP Water Source HP age?
  119. Round Pipe combustion air equivalency
  120. Venting
  121. Plywood duct work
  122. Unit in attic
  123. NM liquid tight, flexible conduit
  124. FED PAC STABLOCK AC DISCONNECT
  125. WHAT IS THIS??
  126. Correct sizing of unit for furnace
  127. Field Controls Power Venter runs constantly
  128. Buderus Boiler and Indirect fired water heater
  129. Laundry room exhaust venting
  130. Vent in bath Enclosure?
  131. Dryer duct venting
  132. Test Condensation pump
  133. heat controller
  134. This House Was Smokin'
  135. Inspectors' duties
  136. condensate trap not necessary
  137. Upside down condensate trap?
  138. Condenser Fan Motor Wiring
  139. Listed gas appliance exhaust termiantion
  140. Age of HVAC
  141. 3' gas vent termination height
  142. early hydro or swamp cooler
  143. Any idea why this box is here?
  144. Return air and fireplace
  145. Condensation line
  146. Propane Gas pipe tape
  147. AC differential temps
  148. 2 compressors, 1 FAU?
  149. Compression Copper Gas fittings / pipes
  150. 'Season' Compressor
  151. Weil Mcclain boilers
  152. plastic Mylar bath ducting in attics
  153. A/C coils
  154. Commercial Ventilation
  155. Dryer vent/AC condenser clearance
  156. Decoding older Rheem furnace Serial # - looking for manuf date
  157. 3 AC Condensors on One Breaker.
  158. Mammoth Heat/ Boiler
  159. undergroud oil storage tank vent?
  160. Tankless Water heater distance from propane tank
  161. AC coil fins
  162. HVAV proximity to furnace venting
  163. Radiant floor heat
  164. Need a name for this component.
  165. Venting gas furnace in attic
  166. core obstruction
  167. Vent connector length at WH draft hood
  168. Should NM wiring be recommended?
  169. Should NM wiring be recommended?
  170. Size matching of evaporator and condenser
  171. Electric furnace temperature rise?
  172. Height of furnace vent above grade
  173. Height of furnace vent above grade
  174. sealed crawl space and gas appliances
  175. AC refrigerant lines in plenum
  176. In Floor and DHW
  177. Flex vent at furnace
  178. thermostat
  179. Age of Goodman AC Condenser Unit
  180. Shared HWT & Furnace Flue (High Efficiency)
  181. Age of Carrier brand evaporator
  182. air handler internal condensate device?
  183. Furnace venting
  184. Can anyone supply the brand name of this old furnace
  185. Need help decoding lennox htr age
  186. Comments on shared furnace / water heater vent
  187. Furnace in the garage
  188. Clearance for underground propane tank
  189. Age, history of this old boiler?
  190. Frost or ice on the outside of a heat pump compressor
  191. water in furnace pan
  192. Heat shield
  193. pvc venting
  194. Duct Material in 1960's Home
  195. Heat exchanger
  196. ceiling/floor/wall hydronic systems
  197. 100 amp Circuit breaker to 30 amp packaged unit
  198. Carrier Comfort Zone II
  199. Age on a Gaffers & Sattler Furnace
  200. Concentric vent termination
  201. PVC or CPVC vent pipe on tankless heater?
  202. Experience with oil fired furnances & boilers?
  203. Screen in jets of furnace
  204. Unfamiliar flue
  205. Heat pump timer?
  206. Bent Fins
  207. Return vs. fireplace
  208. Who needs combustion air?
  209. Older Rheem rooftop Package
  210. HI and also the Buyer
  211. Gas tubing fires linked to lightning raise concern
  212. Covering AC Condensers in the Winter
  213. deposits on water heater and furnace
  214. No attic drip pan
  215. Dimmer controls air handler fan??
  216. furnace technical help needed
  217. Geothermal System
  218. Crawl space plenum
  219. Boiler in Hallway of Small House
  220. Fuel oil leak
  221. Carrier Air Handler
  222. Want to be sure on age
  223. Installed For the Long Haul
  224. Air Conditioner A/C exterior drain line
  225. Vented gas fireplace
  226. Propane stove vented under deck
  227. Abandoned Propane Tank
  228. Furnace install question
  229. Water Heaters used for DHW and space heating
  230. Boiler Pump Dielectric
  231. Is It Hot Enough For You???
  232. That was an easy fix!
  233. Combustion air vent (from garage)
  234. Age of This Air Handler
  235. Chimney shroud
  236. Can someone date this Furnace
  237. Combustion Air
  238. Frequency of cleaning ducts
  239. Clean Easy Drain
  240. Heat pump operation
  241. Fluepipe routed through ductwork
  242. Is this a gas pipe or water pipe?
  243. Two gas furnaces venting in same chimney
  244. Adjustable B' vent?
  245. No data plate on furnace or AC???
  246. Pennco boiler age
  247. How Many Ways Can You Disrespect a B Vent?
  248. odd exterior vent??
  249. Corroded Radiator piping in Concrete
  250. Fire Dampers