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



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  1. Crawlspace vents (12 replies)
  2. Condensate Drain Line (15 replies)
  3. Filter Slot over attic stairs (2 replies)
  4. Gravity roof vent help - texas coast 120mph exp C (0 replies)
  5. Condensing Unit Clearances (7 replies)
  6. Furnae vent (8 replies)
  7. Concord furnace age (2 replies)
  8. How Old is This GE Compressor? (2 replies)
  9. What gas fumes? (0 replies)
  10. Flex duct connections (3 replies)
  11. Secondary condensate line (7 replies)
  12. Gas Furnaces (0 replies)
  13. Furnace Closets (7 replies)
  14. Crown furnace age? (4 replies)
  15. Garage Filter Compartment Door (12 replies)
  16. LENNOX Complete Heat HM30 combination heating system (0 replies)
  17. Partial Pan under Gas air/handler (2 replies)
  18. HVAC Size? - Preston's guide? (12 replies)
  19. Anyone know the age and Ton for A/C unit (7 replies)
  20. Furnace vent in return air (6 replies)
  21. Flue Attachment Mystery (3 replies)
  22. Smoke Alarm (4 replies)
  23. Styrofoam blocks supporting furnace (5 replies)
  24. Have you ever seen this set up? (10 replies)
  25. White powder below flue (36 replies)
  26. Return Air (2 replies)
  27. mystery supply registers (24 replies)
  28. High Humidity with Heat Pump (108 replies)
  29. Asbestos tape (10 replies)
  30. Primary Condensate Problem (40 replies)
  31. testing condensate pumps (6 replies)
  32. 1 inch clearance to combustibles (5 replies)
  33. Furnace Flue Questions (4 replies)
  34. squished flue liner? (4 replies)
  35. Need source for this grate (6 replies)
  36. Rusty ground air ducts (6 replies)
  37. AC register box openings (1 replies)
  38. B vent clearance (23 replies)
  39. CO detector (2 replies)
  40. Air/handler in Attic (7 replies)
  41. Exhausts house air? (8 replies)
  42. Heat Pump vs. AC (8 replies)
  43. I can still smell the fuel oil (5 replies)
  44. CPSC - Goodman Vent Pipes (0 replies)
  45. dryer closet vented to outdoors? (4 replies)
  46. Plainspoken HVAC Tech (2 replies)
  47. furnace condensate and sump pump (17 replies)
  48. What would cause this (16 replies)
  49. R22 vs R410 warning ...? (2 replies)
  50. FP Thermostat (4 replies)
  51. Damper (6 replies)
  52. Gas Vent to Window Clearance (2 replies)
  53. PVC pipe on HE furnace (1 replies)
  54. screen on furnace intake (17 replies)
  55. pipes in hvac return (5 replies)
  56. Flex flu pipe (4 replies)
  57. Unknown Flue Pipe (2 replies)
  58. Exposed duct work at exterior (5 replies)
  59. Condensate line termination (16 replies)
  60. What is this "alarm device"? (15 replies)
  61. Foamed insulation at furnace (1 replies)
  62. Black iron pipe for cooling tower lines (4 replies)
  63. 2 Flues (9 replies)
  64. Bleeding Condensate Drain Line (15 replies)
  65. ASTM E 84 vs UL2043 (3 replies)
  66. Boiler clearance (4 replies)
  67. Furnace pulling combustion air from attic (6 replies)
  68. Garage ventilation or lack thereof. (10 replies)
  69. Flue pipe turned downward (16 replies)
  70. A 95%+ furnace - flue in a tonwhouse. (5 replies)
  71. CSST all the way to the heater (18 replies)
  72. Underground abandoned oil tank (5 replies)
  73. Drilling a hole in a furnace vent for energy audit (8 replies)
  74. Heat pump testing in summer (9 replies)
  75. Black air filter (22 replies)
  76. Surprise, surprise (7 replies)
  77. Is duct insulation considered a combustible (8 replies)
  78. gas water heater in sealed garage closet (6 replies)
  79. ever seen this? (32 replies)
  80. Gas pipe extending from the sub-structure (46 replies)
  81. Can't see ductwork in attic?? (16 replies)
  82. Return Air (7 replies)
  83. Clothes dryer in bedroom (11 replies)
  84. Return air in kitchen (11 replies)
  85. A new one on me, 2 ac systems reversed (13 replies)
  86. Location of furnace and hot water heater (4 replies)
  87. B-Vent in pantry closet (1 replies)
  88. Propane supply line from tank to home (5 replies)
  89. Indoor AC compressor (3 replies)
  90. Furnace vent foil taped (26 replies)
  91. Furnace Age (3 replies)
  92. Black flex pipe in Carrier gas furance (4 replies)
  93. Distance from furnace to wall (6 replies)
  94. Six year old "A" coil corroded, leaks - why? (14 replies)
  95. What do you check in a geo thermal unit? (13 replies)
  96. Dryer on refrigerant line (3 replies)
  97. furnace vent material (14 replies)
  98. She sure do look pretty (4 replies)
  99. Improper vent connection? (7 replies)
  100. A/C unit into attic (3 replies)
  101. TXV Expansion valve insulation (4 replies)
  102. Fan Coil (3 replies)
  103. Floor Condensation (6 replies)
  104. Older In Floor System (3 replies)
  105. Age of unit (6 replies)
  106. possibly offensive post and photo (11 replies)
  107. cut duct boxes (15 replies)
  108. Old Regulator (0 replies)
  109. Condensing Unit Explosion (13 replies)
  110. A/C Condenser died (12 replies)
  111. Monitoring Tank (2 replies)
  112. Age of AC unit (6 replies)
  113. Iced line and coils in HVAC forced air system. (4 replies)
  114. Garage opening for HVAC system (4 replies)
  115. Secondary condensation drain (20 replies)
  116. Attic Duct (4 replies)
  117. Height of Vent Pipe from a Vent hood used in a Laboratory (7 replies)
  118. Radiant floor from water heater (14 replies)
  119. Water heater in chase (6 replies)
  120. Utica Boiler (3 replies)
  121. B vent height above roof (11 replies)
  122. Clamp Meter Suggestions (15 replies)
  123. floor registers and exterior doors (0 replies)
  124. Damaged Flex-duct from cleaning (15 replies)
  125. Flexible plenum (1 replies)
  126. tallish vent (4 replies)
  127. AC Manufacturer? (1 replies)
  128. Boiler exhaust and intake venting and support (3 replies)
  129. UNderground vent pipe (10 replies)
  130. Gas regulator orientation? (9 replies)
  131. Neighbors new loud horizontal furnace vent (20 replies)
  132. Carbon monoxide tester (6 replies)
  133. When is a Closet a Room? (13 replies)
  134. CSST in garage (3 replies)
  135. Plumbing and electrical lines penetrating return air (17 replies)
  136. Flex Aluminum At Forced Furnace Flue Vent (9 replies)
  137. Infrared photo (9 replies)
  138. Condensate drain lines (14 replies)
  139. Heat source in garage (2 replies)
  140. HVAC Return Loop (2 replies)
  141. Drain Pan for Coil (5 replies)
  142. Ac cut off switch ???????? (8 replies)
  143. Direct Vent Flue (12 replies)
  144. Waste Not Want Not (4 replies)
  145. R22 (14 replies)
  146. 2006 IMC 603.9 (0 replies)
  147. buried oil tank question (2 replies)
  148. CSST Stretched (23 replies)
  149. Safety switch (0 replies)
  150. Requirement for Condensate drainage (6 replies)
  151. Underground fuel tank (13 replies)
  152. Return Air In Ceiling (5 replies)
  153. How to inspect Heat Pump (1 replies)
  154. Range hood exhaust (5 replies)
  155. Condenser trap why? (11 replies)
  156. Code Citations? (4 replies)
  157. Ram air for HVAC? (47 replies)
  158. Maximum angle on flue (4 replies)
  159. Plexivent (1 replies)
  160. Blown Cellulose over fiberglass (12 replies)
  161. What is it (5 replies)
  162. hole in one (5 replies)
  163. premier horizontal furnace (6 replies)
  164. HVAC Twister (3 replies)
  165. Kerosene tank bracing (2 replies)
  166. B-Vent on the outside (10 replies)
  167. what co detectors do you use (7 replies)
  168. Help with HVAC (19 replies)
  169. High Efficiency Air Intake and Exhaust Route (9 replies)
  170. Furnace inspection (4 replies)
  171. Return Air Vent (5 replies)
  172. What's wrong with this picture? (12 replies)
  173. Ducts Between Attic Floor Joists (5 replies)
  174. "Duct Tape" (9 replies)
  175. another condensate question (11 replies)
  176. Single wall vent piping. (11 replies)
  177. Radiant heat in concrete floor of a coop (2 replies)
  178. Age of American Standard Boiler (1 replies)
  179. Small room and 115,000 btu's (20 replies)
  180. Single wall metal pipe (6 replies)
  181. CLEARANCE FOR PEX PIPE AND BOILER VENT (1 replies)
  182. Can you vent a gAs fire Water heater out a perimeter wall (7 replies)
  183. Condensate line (25 replies)
  184. Bollard Attempt to Protect Condensing Unit (4 replies)
  185. Boiler gas line (0 replies)
  186. 'Indoor Only' Ductwork (3 replies)
  187. Condo mechanical room combustion air (11 replies)
  188. why hasn't this house burned down? (5 replies)
  189. Patina (8 replies)
  190. Fan speed DPT settings (10 replies)
  191. Oil Fill (11 replies)
  192. Heat pumps on stands for draining. (18 replies)
  193. HVAC Age (5 replies)
  194. Heat pump circuit breaker (13 replies)
  195. This Looks Like a Good Idea (7 replies)
  196. Access Denied (11 replies)
  197. GE condensing unit age...??? (5 replies)
  198. condensate line and pan (4 replies)
  199. Barometric damper on power vented furnace (7 replies)
  200. Condensate Overflow Drain Pan (8 replies)
  201. Draft/Fire Stop Foam Rated for Contact w/Flue Pipes? (8 replies)
  202. heat exchanger disclaimer (16 replies)
  203. Auxiliary Heating Question (7 replies)
  204. Condensate drain (2 replies)
  205. Gas Flex (37 replies)
  206. Combustable exhaust slope (24 replies)
  207. Not sure how to write this up. (1 replies)
  208. Furnace vents into chimney (11 replies)
  209. Indoor and outdoor coils different manufacturer's (4 replies)
  210. HOME INSPECTOR WRONG (17 replies)
  211. York Condenser age (2 replies)
  212. Crawl Space Expansion Tank (0 replies)
  213. Dryer Vent Disharge On The Roof (19 replies)
  214. Return and Supply Ducts Touching (4 replies)
  215. Condensation drain pan code (8 replies)
  216. Air Conditioning, Ambient Temperature and RLA Effect (9 replies)
  217. Home Built Heating Systems - Gotta Love 'Em! (3 replies)
  218. duck! (0 replies)
  219. What's This Thing? (7 replies)
  220. AC condensate seconday drains (11 replies)
  221. vent pipe (7 replies)
  222. Aux heat on heat pump (11 replies)
  223. Replacement Costs (8 replies)
  224. How would you write this? (13 replies)
  225. Age of unit (4 replies)
  226. Need info (4 replies)
  227. Furnace in Garage (28 replies)
  228. Induced draft water heater vent (6 replies)
  229. plastic wrapped attic insulation (6 replies)
  230. Flue and Plumbing Vent (2 replies)
  231. Exhaust Fan in Garage (6 replies)
  232. Lennox G40UH Furnace Combustion Air Noise (9 replies)
  233. Loop tween WH and Floor radiant heat (4 replies)
  234. High Efficiency WH discharing behind A/C unit (3 replies)
  235. natural and draft induced common vent (23 replies)
  236. Delta T (2 replies)
  237. Identify Entran II (5 replies)
  238. WATER HEATER VENT FLAT (6 replies)
  239. Is this acceptable A/C Support? (8 replies)
  240. No register vents in bathrooms (18 replies)
  241. High pressure line (0 replies)
  242. Exhaust Vent Near Window... (18 replies)
  243. Testing A/C, For Standard A/C units, heat pump, Geothermal HP (1 replies)
  244. Is this a Heat Pump (14 replies)
  245. Condensing unit fan motor question (8 replies)
  246. Test A/C function of heat pump in winter? (3 replies)
  247. Combustion air garages (10 replies)
  248. Joke of the Day (11 replies)
  249. Condensate drain filter (12 replies)
  250. Duct chase diagram (11 replies)