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  1. Flexible vent on gas water heater?
  2. They don't make em like they used to
  3. What is this?
  4. Oil Tank Repair ?
  5. Help with Propane stove vent clearances near windows. (Maine)
  6. Anybody like to decode this model number for age? Old Westinghouse.
  7. Boiler flue slope
  8. Natural Gas BBQ allowed in Ontario
  9. Old Armstrong Furnace
  10. Coil dripping condensate
  11. Geothermal Heating and Cooling Preformance Evaluations
  12. Hot spots on welds-Heat Exchangers
  13. Ingersoll Furnace Age - Help
  14. Air Handler
  15. R-22 in 2013 system
  16. Mitsubishi slim age
  17. Dryer vent pipe repair??
  18. Attic fan or house fan ?
  19. tonnage
  20. just to make sure I am not crazy
  21. Goodman A/C Recall
  22. Stuck
  23. Condensation Under Air Handler
  24. A/C register temp
  25. Guidance on HVAC inspections
  26. Condensate in Waste Line
  27. Testing Heat/AC
  28. Stove hood vents to attic - recommend out thru roof?
  29. Inspecting Air Handlers and Condensers
  30. McQuay air handler
  31. Oil tank vent?
  32. Sweating air handler
  33. No return ductwork
  34. How do you determine improper air flow
  35. Air conditioning return
  36. What is that smell?
  37. Low voltage wiring
  38. obstructed rag
  39. Correct combustion intake location/configuration?
  40. Primary A/C Drain
  41. Geothermal Open or Closed Loop?
  42. Ac refridgerant line
  43. Circulating Pump Hydronic
  44. Rust in Furnace
  45. Hydronic HVAC Age
  46. Fresh Air Makeup ?
  47. Did I say I like IR
  48. McQuay Question
  49. filter maintenance hint...
  50. 2nd floor radiant heat access panel
  51. gas fireplace vent?
  52. Commercial HVAC
  53. how long can it be?
  54. Help with Comfortmaker Date Codes Please
  55. Inspecting Furnace in Summer Months
  56. Negative pressure in furnace room
  57. Pressure relief valve?
  58. co / smoke detector
  59. Very old boiler steam convert
  60. HVAC new systems
  61. Help With GE Furnace Age
  62. New furnace discharge pipe?
  63. Furnace age
  64. Polaris Water Heater
  65. Makeup air
  66. Age of American Standard Electric Furnace
  67. Not many around like this one
  68. Oil furnace-fuel oil or service oil leak?
  69. Online boiler age lookup ?
  70. Bryant HVAC Age
  71. Dual fuel HP
  72. Anyone know what brand air conditioner this is?
  73. My son converting from oil to gas
  74. Unfiltered outside air intake on return
  75. Got burned pretty good today....
  76. Condensate Drain
  77. How do you say fire
  78. Age of Carrier AC - 38GS036-310
  79. Basic electrical for A/C units
  80. Geothermal or heat pump?
  81. What is this?
  82. Multiple Chimney Flue's Same Height ?
  83. Distribution air duct beneath a slab foundation
  84. Can anyone help me date this furnace?
  85. Venting of High Efficiency
  86. low flow at registers
  87. Floor warming system?
  88. Furnace filter size
  89. Dirtiest Filter
  90. Cold supply air
  91. Natural gas grey pipe
  92. Opening maintenance panels
  93. New article: Building Cavities used as Supply or Return Ducts.
  94. Heater is the summer
  95. Carrier furnaces
  96. Auxillary heat on 6 year old heat pump
  97. Baseboard - 208v - temp range
  98. Heat Pump AC in Ca condo
  99. Flexible gas appliance connector
  100. Furnace and A/c age
  101. International of Utica
  102. They said....
  103. Antique Thermostat?
  104. HP Overfused?
  105. How many vent details?
  106. AC condensate to sink drain
  107. Boiler pressure relief valve
  108. Free webinar on inspecting gas-fired furnaces tomorrow (Wed) night.
  109. Relief Damper in Attic Space
  110. Luxaire Brand Furnace Age
  111. Armstrong Furnace Age... 40s era?
  112. PIC: That's one way, I guess.
  113. gas shut off for room heater
  114. Capacity of HVAC system
  115. Heat Pump heating at 125 degrees
  116. Attic furnace venting
  117. Wall Heater by a window ...is it ok?
  118. Do You Know Who is Peeing on Your Air Conditioner?
  119. Central environmental systems A/C
  120. Thanks to the following people
  121. What would Charley say?
  122. This one's for Larson, why I don't recommend humidifiers part 2
  123. No plenum
  124. www.buildingcenter.org is #1
  125. Supply duct question
  126. High efficiency furnace exhaust
  127. ventless gas logs
  128. Tankless water heater used for radiant heat
  129. Need help
  130. Testing Heat/pump/AC
  131. Combustion air from attic
  132. inspecting humidistats
  133. What If Home Builders Had to Pay the Energy Bills?
  134. PVC Venting
  135. Furnace clearance from Dow styrofoam sheathing
  136. Common venting of Furnace & Water heater
  137. furnace and water connection
  138. Date code for GE air conditioner
  139. Flex hose used in fire box...Question
  140. I called this out.
  141. Return on pellet stove
  142. Line set under slab
  143. Crown boiler
  144. Multiple filters
  145. Main service panel acting as a service disconnect
  146. Asbestos Tape
  147. "Ask This Old House"
  148. Boiler Recall
  149. Do you pull service disconnects?
  150. U.S. Dept of Energy includes InterNACHI article in Building America Solution Center.
  151. Honeywell 8000 Thermostat Issues
  152. 3 Ways to Tell if That Contraption Is a Heat Pump or an AC
  153. Envenenamiento con Monóxido de Carbono y Cómo Detectarlo
  154. Damaged Electric Heat found by Knoxville TN home inspector
  155. WiseHeat Thoughts?
  156. 47 year old old steam boiler
  157. Age
  158. Heat pump/(a/c) unit identification
  159. hvac venting issue
  160. Drip legs
  161. First 10 to reply win Inspecting HVAC Systems book (hard copies).
  162. Heat Pump Testing
  163. Why use duct tape when...
  164. Furnace condensate drain terminates onto crawlspace floor.
  165. Necessary to note supply legs without dampers ?
  166. Boiler
  167. Pellet Stove vent
  168. Crown boiler recall
  169. Add on Chimney
  170. Oil tank in Crawlspace
  171. need age/size for Goettl HP
  172. International sales company furnace
  173. Dunkirk Boiler manufactured for Montgomery Ward
  174. Geo-thermal HVAC, do you inspect or not
  175. Age of Goodman AC
  176. Cracked heat exchanger?
  177. Would you comment on this
  178. Attic vent fan
  179. New online "How to Inspect Fireplaces, Stoves, and Chimneys" course for inspectors
  180. Duct work SNAFU
  181. Need help, age of GE furnace
  182. Furnace room ventilation
  183. Crawlspace Heating
  184. Cold air return attached to exterior vent
  185. Old Lennox
  186. The Hidden Dangers Lurking Within the HVAC System
  187. Vent Free Gas Log in Wood Fireplace
  188. Keeping ahead of the curve
  189. Checking Heat Pump in heating mode when its 80 degrees outside?
  190. Looking up of a A/C unit
  191. I did it again
  192. Pellet stove exhaust
  193. Exhaust air near heat pump
  194. Conductor and HVAC Breaker Compatibility
  195. Boiler age
  196. Unvented Crawl Space
  197. Chimney flue clearance to wall
  198. Air Return Vent
  199. Trinity Ti150 Troubleshoot
  200. Abandoned gas furnace in crawlspace
  201. New, Third Edition of Inspecting HVAC Systems book.
  202. Another mess
  203. Ventilation System Canadian Style
  204. What in your opinion
  205. HVAC UV devices
  206. Do you call this for repairs
  207. Open return (wet basemet) (toilet)
  208. Hvac height in garage
  209. direct vent furnace
  210. Don't assume???????
  211. Weil Mclain Cp lookup tool
  212. Fresh air intake question
  213. What do folks see wrong?
  214. 750 square foot condo...2 1/2 ton AC with 75,000 btu gas furnace
  215. Is this fan on a vent motor cracked or typical
  216. year of unit
  217. What is the tonnage of this Ruud .
  218. date this furnace
  219. Physical Damage - But keeping the house cool...Need advice
  220. Ductwork
  221. Poor cooling for new Puron AC unit or just the way some of them work?
  222. Inspecting Heat Pumps
  223. Breaker Size
  224. Low Freon or leakage
  225. Furnace intake not outside.
  226. Direct Vent pipe inside cold ait return
  227. Fire Block?
  228. Amp rating on AC unit.
  229. Old Rheem. AHU Inop. Did I...
  230. determining seer?
  231. Excessive Mildew Exterior of Plenum - 6 Year Old House
  232. 101 outside ambient
  233. Condensation on duct in crawlspace
  234. Poisiones gas escaping
  235. First time I've seen this...
  236. Intake air to furnace
  237. short of combustion air?
  238. Pellet burner as main heat source?
  239. What to do What to do
  240. Advanced HVAC video training for home inspctors on USB drive.
  241. Flex furnace vent connector
  242. Tuesdays brain twister
  243. Freshair supply for electric furnace
  244. Duct Connected to Chimney
  245. Thoughts
  246. bypassing a thermo stat
  247. Another use for secondary drain
  248. Propane tank clearance from overhead heating vent
  249. Hearth requirement pellet stove?
  250. Charley B or David A