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  1. When should I consider a new system?
  2. New HVAC Install Scheduled for May 20!
  3. Lennox Comfortsense: wrong outdoor temp
  4. High/low returns?
  5. R22 equivalent to Carrier 38HDR
  6. IAQ trouble codes
  7. Return dampers necessary?
  8. Dual-Fuel Versus 2009 Stimulus Energy Credits
  9. Buying New Trane- Help please
  10. New High E. v.s. furnace ... keeping old A/C & Evp. Coil ... will R410a & TXV help it
  11. Confused about furnace suggestions
  12. Condensers on pitched roof?
  13. Blower door testing machine!
  14. Two air conditioners in every house?
  15. Humidifier upstairs or downstairs?
  16. Opinions on Cold Point CNC?
  17. Single stage vs Dual stage- rebate
  18. Warranties
  19. New heat pump.. first electric bill.
  20. TCONT802A vs. Honeywell VisionPro IAQ?
  21. Buried lineset issues
  22. Rheem RGRL vs Carrier Infinity vs Amana AMH95
  23. RETURN SIZE
  24. New HVAC for remodel
  25. goodman furnace
  26. Dual stage HP question....
  27. What should be the line pressure in a minisplit system?
  28. HONEYWELL TH8320U10 problem
  29. Fan speed when thermo calls for fan only?
  30. Confused, 2 Stages vs 1 stage
  31. 4 wire stat to furnace
  32. Line evacuation question
  33. Cut To Fit
  34. Is there a Pro in the house
  35. Space Heaters - Which Ones Really Are The Best?
  36. GE ECM Module
  37. 3-ton Hallowell installed in northeastern PA
  38. Arizona High Desert Replacement
  39. New Carrier Infinity system - static pressure too high (and other problem)
  40. time delay for wireless door switches
  41. Carrier Infinity 25HNA -- why no outdoor TXV ?
  42. Discovered my Furnace Has a Vacuum Relief Device
  43. Cold weather AC PM.
  44. Advice for New A/C Install for Condo Unit
  45. Model # into model?
  46. Help with gas dryer symbols
  47. Power venter with Infinity?
  48. Camfil Farr filter pressure drop claim
  49. Signed for new replacement Heat Pump (Thanks to HVAC Talk Help)
  50. Non-Bleed TXV's??
  51. Replacement system with shared return. Egads
  52. Return in bathroom?
  53. TrueSteam in Attic?
  54. HRV Location??
  55. concentric venting
  56. Now what?
  57. hvac-calc basement floor
  58. Are Whole House Humidifiers bad?
  59. Kool Cap
  60. What are the effects of having an 80' line from condensor to evaporator?
  61. Elbows
  62. Need Help Making A Choice For New HVAC System.
  63. Furnace Info
  64. replacing filter with different size.
  65. duel run capacitor
  66. New Amana Install Questions
  67. ...Trane Thermastat ... Dehumidify on Demand ... Will it Satisfy RH w/Humidistat? ...
  68. airhandler configuration for hydro-air
  69. New Carrier Heat Pump. One Noisy Problem
  70. New home buyer
  71. supply air temp from heatpump?
  72. Swapping heat pumps but not A-coil
  73. New Wrinkle on a New Install. Unit up to date?
  74. R410a Install questions
  75. pbkm-ld14n100f problems
  76. Brand new window units & mold
  77. Yearly HVAC Check-up
  78. 5 ton HP, tax credits?
  79. furnace filter question
  80. RHC-TST411MDMS vs Honeywell TH8321U1006
  81. Does a 5 ton Infinity 17 SEER have an ARI number?
  82. ARI certification # missing?
  83. No More R22
  84. efficiency of furnace
  85. help please: Flow check valves
  86. rheem classic 90 plus defective
  87. Standby power draw of Carrier Inifinity Furnace
  88. Post Gone? (Navien Tankless HWH)
  89. Newbie Equipment Advice: Payne, Lennox, Kenmore
  90. ultrasonic leak detector
  91. how can you wire 2 t'stats to 1 air handler
  92. Virginia Beach hybrid vs. 95% furnace
  93. Stinky A/C
  94. Lennox Unit DRIVING ME NUTS!!!!!
  95. Observations on home roof mount
  96. Purchased new home and have heating question
  97. De-stratifying air
  98. new heat pump/air handler to be installed...opinions
  99. more heat load questions...
  100. NEED HELP ON CARRIER INFINITY 19
  101. gas boiler: mod/con and what brand?
  102. no cooling
  103. Trane and American Standard have similar air filtration systems some built-in.
  104. What type of system for this retrofit? Vent in floor?
  105. Hybrid heat pump with GMV8118 heater
  106. Hot water storage tank
  107. Goodman 13-SEER Air Handler... No TXV?
  108. Advice for addition with single unit - two stories
  109. Is my Heat pump too small?
  110. Copeland Compressor Noise
  111. Thanks Rheem, nice savings this past winter with new furnace
  112. Bathroom exhaust fan
  113. Second Stage Saga
  114. How long to create steam?
  115. Help with decision on Heil Heat pump
  116. what are common installer mistakes with mod/con gas boilers?
  117. Here's to............
  118. hmmming sound
  119. Does this seem right
  120. Independent HVAC Evaluation
  121. Need help choosing
  122. Help with air cleaner and thermostat choices
  123. Which proposal? Amana or American Standard?
  124. Heat capacity of mini-split
  125. Basement supply and return vents in the summer
  126. Anyone heard of "Inner City Products" a/c
  127. Hard Start Kits for Trane XE1000- 5.2 ton Compressor
  128. 3 wire need 5 wire
  129. buderus gb142, is it a mod/con?
  130. Replaced media filter ESP reading is the same?
  131. Pressure Surging
  132. Filter Options For Lennox Healthy Climate Box
  133. Power Consumption - 3.5 ton vs 5 ton
  134. What is going on here??
  135. 4 Zone FAU
  136. Looking at Carrier Infinity 17 or 19 SEER in No. Virginia - 2 Units. 1 Unit w/zones?
  137. Carrier Compact Air Conditioner not blowing cold air
  138. Radiant Heat Project: Triangle Tube w/Indirect? Watts Onix no plates vs. Pex w/plates
  139. Dehumidifier Confusion
  140. Should you keep the fan on low all the time in the summer?
  141. Article on HVAC wages
  142. A lesson to be learned
  143. R22 now - R410a in the future
  144. Fresh air intake or Positive Pressure or Hepa for pollen allergies?
  145. mod/con recommendations
  146. Installation GeoSource DualTEK vs. 2 separate HP units
  147. Comparing systems and what else should I ask
  148. My current Electronic-Air-Cleaner .... but a new High E. Furnace ... airflow issue???
  149. York or Lennox Western NY New Home
  150. Need Help! Watts Onix .vs. Pex w/plates for Staple up Radiant/Hydronic Heat
  151. Bryant Preferred 15 or Trane XL15i
  152. Which brands carry rebate eligiable 4-ton
  153. Matched systems
  154. Amana Heat Pump
  155. need help again with a nordyne model number...
  156. Fan Problem
  157. Fan Runs on Carrier 48SS-024060 Gas Pack
  158. 410A Refrigerant leaks in coils
  159. HVAC sizing for large remodel
  160. Need help to select air handler / coils to match my outside unit
  161. Trane XV80 with Zone Controller
  162. York, Carrier, or Trane Heat Pump
  163. Question: How can I calculate annual operating costs of different SEER AC/Heat Pumps?
  164. Mold in Trane Air Conditioner
  165. Honeywell IAQ 2-stage operation questions
  166. Package Unit Life Spans
  167. Bryant Evolution Control
  168. Wrong size suction line Lennox HS26-060
  169. Rheem fact labor incentive?
  170. Variable Speed Blower and SEER
  171. Dog ate my wires!
  172. Homeowner question about plenum configuration
  173. 2" flue and intake on a 90,000 btu
  174. cooling computers
  175. ...old Goodman furnace ... GMP 125-5 9809621618 ... what size is it ???.....
  176. Dual Fuel System
  177. N-Coil vs A-Coil
  178. HELP NEW FURNACE WHAT ONE
  179. Rheem 13AJL
  180. Best Supply & Return Locations
  181. will mod/con allow low enough temps for baseboard forced water?
  182. Age of Payne Condenser
  183. Question about Electric Baseboard heating
  184. No experience-please help
  185. 2 ton evap coil & 1.5 ton condenser.
  186. York Affinity vs Lennox XP 14
  187. Is 350 CFM too low for 60k XV80?
  188. Smallest footprint 1.5 ton heatpump available?
  189. Frozen Toes at the Kitchen Sink :-(
  190. Need Advice on Replacement or Upgrade?
  191. Air handler question...
  192. Indoor air quality...
  193. HONEST OPINION ON FURNACE
  194. Easy Question
  195. replacing condenser - Trane XR13, XR14 or higher model or brand
  196. Compressor won't go on
  197. Lennox, Carrier, Armstrong or other?
  198. Airflow through a Y connector
  199. Nice Service Van
  200. condensing units out of refrigerant!!!???
  201. What's the difference in a mobile home furnace?
  202. Proper Air Handler/heat pump matching?
  203. Goodman DSZ16 Availability
  204. Sketchy AC guys
  205. Switchover from Heat to A/C question
  206. Will give left nut for help with Lennox 10HPB36-5P.
  207. WAS: will give my left nut for help with Lennox 10HPB36-5P
  208. WAS: will give my left nut for help with Lennox 10HPB36-5P
  209. Lost 2 lbs of refrigerant
  210. Looking for some help deciding on which thermostat
  211. Condensor Pad distance.
  212. Should I upgrade 8320 to 9421 IAQ Honeywell? Other various questions?
  213. York Affinity 4 wires to the condenser?
  214. Satisfying the thermostat
  215. What constitutes a "good installation"
  216. House won't cool properly
  217. short fuse
  218. Are these comparable units?
  219. no 24v coil on contactor
  220. Slightly Odd Diagnosis from HVAC Specialist ...looking for some help in analyzing it.
  221. Professional opinion on level of unit repair
  222. 24 volt thermostat Vs Battery operated thermostat
  223. A/C Component Selection (2.5 ton condensor, 3.5 ton evaporator, no TXV)
  224. Your equipment
  225. Thermostat Question
  226. Source for old Burnham A/C control board, head unit?
  227. need help troubleshooting
  228. Maximum efficiency steam boiler
  229. does anyone here like goodman condensers?
  230. Need Help Rheem Outdoor Unit.
  231. Heat Pump Replacement
  232. Lennox Comfortsense 7000 or Honeywell IAQ
  233. My Trane XE900 is not cooling
  234. home owners..would you want to know..
  235. Advice on new Heat Pump
  236. Does the last 5 digits of motor serial number matter?
  237. Dual Fuel or Not? That is the question
  238. Apartment on a freon recharge spree?
  239. Carrier System - Coil Concerns
  240. Indoor Pool Dehumidification
  241. Change Refrigrant?
  242. Sealing the Envelope
  243. Too Hot Upstairs - What to do now?
  244. Heat Pump or Traditional?? Dry Air and Allerigies
  245. Questions on infiltration
  246. Getting Heat Pump Quotes currently
  247. What is the Correct Manifold Gauge Pressure for Goodman 3 Ton Using 410A
  248. am i comparing apples to apples
  249. Your professional unbiased opinion would be greatly appreciated
  250. Central AC - Heating System vs Heat Pump system