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  1. Venting of High Efficiency
  2. low flow at registers
  3. Floor warming system?
  4. Furnace filter size
  5. Dirtiest Filter
  6. Cold supply air
  7. Natural gas grey pipe
  8. Opening maintenance panels
  9. New article: Building Cavities used as Supply or Return Ducts.
  10. Heater is the summer
  11. Carrier furnaces
  12. Auxillary heat on 6 year old heat pump
  13. Baseboard - 208v - temp range
  14. Heat Pump AC in Ca condo
  15. Flexible gas appliance connector
  16. Furnace and A/c age
  17. International of Utica
  18. They said....
  19. Antique Thermostat?
  20. HP Overfused?
  21. How many vent details?
  22. AC condensate to sink drain
  23. Boiler pressure relief valve
  24. Free webinar on inspecting gas-fired furnaces tomorrow (Wed) night.
  25. Relief Damper in Attic Space
  26. Luxaire Brand Furnace Age
  27. Armstrong Furnace Age... 40s era?
  28. PIC: That's one way, I guess.
  29. gas shut off for room heater
  30. Capacity of HVAC system
  31. Heat Pump heating at 125 degrees
  32. Attic furnace venting
  33. Wall Heater by a window ...is it ok?
  34. Do You Know Who is Peeing on Your Air Conditioner?
  35. Central environmental systems A/C
  36. Thanks to the following people
  37. What would Charley say?
  38. This one's for Larson, why I don't recommend humidifiers part 2
  39. No plenum
  40. www.buildingcenter.org is #1
  41. Supply duct question
  42. High efficiency furnace exhaust
  43. ventless gas logs
  44. Tankless water heater used for radiant heat
  45. Need help
  46. Testing Heat/pump/AC
  47. Combustion air from attic
  48. inspecting humidistats
  49. What If Home Builders Had to Pay the Energy Bills?
  50. PVC Venting
  51. Furnace clearance from Dow styrofoam sheathing
  52. Common venting of Furnace & Water heater
  53. furnace and water connection
  54. Date code for GE air conditioner
  55. Flex hose used in fire box...Question
  56. I called this out.
  57. Return on pellet stove
  58. Line set under slab
  59. Crown boiler
  60. Multiple filters
  61. Main service panel acting as a service disconnect
  62. Asbestos Tape
  63. "Ask This Old House"
  64. Boiler Recall
  65. Do you pull service disconnects?
  66. U.S. Dept of Energy includes InterNACHI article in Building America Solution Center.
  67. Honeywell 8000 Thermostat Issues
  68. 3 Ways to Tell if That Contraption Is a Heat Pump or an AC
  69. Envenenamiento con Monóxido de Carbono y Cómo Detectarlo
  70. Damaged Electric Heat found by Knoxville TN home inspector
  71. WiseHeat Thoughts?
  72. 47 year old old steam boiler
  73. Age
  74. Heat pump/(a/c) unit identification
  75. hvac venting issue
  76. Drip legs
  77. First 10 to reply win Inspecting HVAC Systems book (hard copies).
  78. Heat Pump Testing
  79. Why use duct tape when...
  80. Furnace condensate drain terminates onto crawlspace floor.
  81. Necessary to note supply legs without dampers ?
  82. Boiler
  83. Pellet Stove vent
  84. Crown boiler recall
  85. Add on Chimney
  86. Oil tank in Crawlspace
  87. need age/size for Goettl HP
  88. International sales company furnace
  89. Dunkirk Boiler manufactured for Montgomery Ward
  90. Geo-thermal HVAC, do you inspect or not
  91. Age of Goodman AC
  92. Cracked heat exchanger?
  93. Would you comment on this
  94. Attic vent fan
  95. New online "How to Inspect Fireplaces, Stoves, and Chimneys" course for inspectors
  96. Duct work SNAFU
  97. Need help, age of GE furnace
  98. Furnace room ventilation
  99. Crawlspace Heating
  100. Cold air return attached to exterior vent
  101. Old Lennox
  102. The Hidden Dangers Lurking Within the HVAC System
  103. Vent Free Gas Log in Wood Fireplace
  104. Keeping ahead of the curve
  105. Checking Heat Pump in heating mode when its 80 degrees outside?
  106. Looking up of a A/C unit
  107. I did it again
  108. Pellet stove exhaust
  109. Exhaust air near heat pump
  110. Conductor and HVAC Breaker Compatibility
  111. Boiler age
  112. Unvented Crawl Space
  113. Chimney flue clearance to wall
  114. Air Return Vent
  115. Trinity Ti150 Troubleshoot
  116. Abandoned gas furnace in crawlspace
  117. New, Third Edition of Inspecting HVAC Systems book.
  118. Another mess
  119. Ventilation System Canadian Style
  120. What in your opinion
  121. HVAC UV devices
  122. Do you call this for repairs
  123. Open return (wet basemet) (toilet)
  124. Hvac height in garage
  125. direct vent furnace
  126. Don't assume???????
  127. Weil Mclain Cp lookup tool
  128. Fresh air intake question
  129. What do folks see wrong?
  130. 750 square foot condo...2 1/2 ton AC with 75,000 btu gas furnace
  131. Is this fan on a vent motor cracked or typical
  132. year of unit
  133. What is the tonnage of this Ruud .
  134. date this furnace
  135. Physical Damage - But keeping the house cool...Need advice
  136. Ductwork
  137. Poor cooling for new Puron AC unit or just the way some of them work?
  138. Inspecting Heat Pumps
  139. Breaker Size
  140. Low Freon or leakage
  141. Furnace intake not outside.
  142. Direct Vent pipe inside cold ait return
  143. Fire Block?
  144. Amp rating on AC unit.
  145. Old Rheem. AHU Inop. Did I...
  146. determining seer?
  147. Excessive Mildew Exterior of Plenum - 6 Year Old House
  148. 101 outside ambient
  149. Condensation on duct in crawlspace
  150. Poisiones gas escaping
  151. First time I've seen this...
  152. Intake air to furnace
  153. short of combustion air?
  154. Pellet burner as main heat source?
  155. What to do What to do
  156. Advanced HVAC video training for home inspctors on USB drive.
  157. Flex furnace vent connector
  158. Tuesdays brain twister
  159. Freshair supply for electric furnace
  160. Duct Connected to Chimney
  161. Thoughts
  162. bypassing a thermo stat
  163. Another use for secondary drain
  164. Propane tank clearance from overhead heating vent
  165. Hearth requirement pellet stove?
  166. Charley B or David A
  167. Old oil burner furnace abandoned in crawlspace
  168. Power vent + direct vent?
  169. Age of Fedders unit.
  170. Vent for floor heater
  171. Air Handler rating
  172. Gas Firplace fog
  173. Fujitsu Mini Split
  174. HVAC Question
  175. Carrier Size
  176. Gibson/Nordyne ?
  177. Haier Condenser Manufacture Date
  178. Plastic Gas pipe in furnace room
  179. Flue exhaust in chimney for furnace
  180. Is this right?
  181. Dating a Goodman
  182. furnace date for Air ease?
  183. Is a drip leg required on a gas line to the furnace or the water heater in Calif?
  184. Appliance Date
  185. Never had this...
  186. Exhaust/intake vent under a deck
  187. Did I break it? ...Heat pump
  188. Heat pump
  189. Thermostats that make a clicking noise
  190. Green Ductwork
  191. Condensate drain
  192. Blower assembly at termination of dryer duct...
  193. Dornback Furnace
  194. Sweating
  195. Which outside ac unit went where?
  196. Ac Date?
  197. Poor cooling, not very old outside unit evidently performed well
  198. Dampers in Heat Ducts
  199. Unusual Venting
  200. Malibu Slant/Fin Boiler Age?
  201. How old am I?
  202. HVAC unit - air blowing out of cabinet
  203. electric baseboard heater
  204. Furnace room door opens in
  205. Clare furnace age
  206. Trane System Blower Motor
  207. Unreadable Data Plates
  208. PVC Dryer Vent
  209. Electric Water Heater
  210. Electric Water Heater
  211. Need help dating Water Furnace Geothermal
  212. Florida Heat Pump Question
  213. 1967 Electrical furnace
  214. Temperature differential
  215. Why Would There Be A Hot Spot On This Furnace?
  216. What are these parts on a boiler?
  217. Screw in the cooper pipe of the boiler???
  218. Service switch
  219. Furnace burn
  220. Not for Larson's eyes
  221. GE HVAC Date Code - age needed?
  222. Soot-like ceiling marks
  223. Through wall mold ac
  224. Water Heater Flue set up
  225. HVAC with plastic exhaust vent pipe ... need advice, Pics incuded
  226. Oversized
  227. Painted furnace flue?
  228. Suspected asbestos
  229. Red flags for central split systems
  230. Need Some Help With The Age Of An American Standard Boiler Please
  231. Intake
  232. Singer a.c.
  233. High rise condo HVAC question
  234. Corrugated plastic water heater flue? Lochinvar DVN040-1 unit
  235. Plastic for furnace....vent ducting
  236. AHIT Opinion On Inspecting Air Cooled AC's
  237. Scorch marks
  238. humming sound
  239. Lennox pulse
  240. Drywall separating the enclosure from the Attic
  241. Special Thanks from the Building Intelligence Center
  242. And the winner is....
  243. Burnt my arm
  244. Btu output
  245. Age of Day and night furnace
  246. Heat pump AHU
  247. Message Board responses
  248. Shared venting
  249. Gas Fireplace using Class A vent
  250. Amana Heat pump age...9601275433