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  1. Help choosing between contractor quotes for central A/C install
  2. HVAC recommendations in South Denver
  3. Fumes coming from basement
  4. AC went out and we live in Arizona... please help
  5. Humidifier recomendations for Hard Water area
  6. Does 3 Ton XR15 HAVE SOUND BLANKET?
  7. Bryant/Carrier Experts: Version 14 vs. Version 16 stat question...
  8. Old gravity Floor Furnace
  9. Rheem vs. Carrier Furnace + A/C
  10. AC man told me I can only go with Lennox due to size
  11. Can the Honeywell AIQ TH8000 stat run a Venmar 4100?
  12. Input from the Pros please
  13. Will Ruud/Rheem come out with a 95% efficient Modulating Furnace?
  14. Need HVAC/zoning help in Houston, TX. Please!
  15. Primary and Secondary Drain Pipe
  16. Low Humidity in the winter
  17. Load cal. On house with no attic venting?
  18. Freon Noise
  19. condensate pumps for mini spits
  20. Any suggestions on how to research brands?
  21. 410A Evap leak causes?
  22. cycling
  23. riello burners
  24. comparison tempstar versus trane
  25. Resource for looking up AFUEs on older units?
  26. undersizing unit
  27. will radiant barrier decrease attic temps
  28. Keeping secondary ourside drain line from plugging
  29. Why is the temperature measured at the registers?
  30. Do I need to run a dehumidifier in a new house?
  31. Ton x sq ft
  32. Service valve cap question
  33. duct size problem
  34. A/C recommendations for Mobil home!
  35. Heil A/C Condenser Model# HAC048AKC4 SEER?
  36. Compressor brand - does it really matter?
  37. 11 seer heatpump with 13 seer indoor coil
  38. NCCER anyone?
  39. FlORIDA REBATE PROGRAM ON HOLD
  40. Wiring a Trane XT80 for same heat-cool blower speed
  41. General consensus on comparing units
  42. New Trane installed today, have a few questions
  43. Pros: If Your Home Water Heater Goes Out, Will You Go Tankless
  44. EdgeStar Portable Air Conditioner AP12000HS-1
  45. To Humidifier or Not To Humidifier?
  46. Would you have done this and does it meet code?
  47. Houston hvac?
  48. Any harm in oversizing blower in SLP98V or similar furnace ?
  49. Grit coming out of vents on Carrier Heat Pump
  50. surface igniter problem
  51. What is more important? AFUE rating or Variable speed blower, 2 stage?
  52. Does SEER rating change the size of AC needed?
  53. need set straight (con't)
  54. Evap Coil & Condenser Matching
  55. 2 furnaces. Do I need 2 humidifiers?
  56. Wine room
  57. Installation Cost for GMVC9590 in NJ
  58. Goodman 2 stage advice
  59. What does a TXV do and why is it used (or not used)
  60. XR15 with XV80/XV95
  61. load calc software, what are you using
  62. Explain operation of Two Stage with Multi Blower
  63. Vaughn stone-lined Indirect Hot Water Heater: Yea or Nay?
  64. Triangle Tube installer in Boston area
  65. Help with no problem but not cooling
  66. Are these guys blowing smoke, York 80% VS TM8V furnace hard to get?
  67. Pro member
  68. Old Whrilppol a/c unit btu cooling???
  69. Another hardware question
  70. Recommendend brand question - Austin, Texas
  71. Hold the presses, big news!
  72. How to size boiler w/indirect water heater
  73. We can't find a company that we trust...
  74. Opinion please
  75. Consumer Reports on furnace filters
  76. Missouri program-Free Energy Audits-50%, 70% Rebates!
  77. WHAT TO DO
  78. insulation choice?
  79. TXV & Lennox C33?
  80. Mulch, rock or what
  81. Biasi B-10 vs. Buderus G115: which one?
  82. XR15 with XR80 or XT80 ?
  83. Problems with Lennox LZP-2 control board
  84. Am. Std. H16 a-coil?
  85. Ensuring proper return air question...
  86. Attic ventilation/gable vents/no soffit vents
  87. 10 SEER to 13 SEER - Would there be a noticeable change in electric bill in Chicago?
  88. "Tweaking" Manual-J Design Temps
  89. amvc95090 trouble
  90. Lennox AC Model 1986
  91. Need Advice
  92. Where does it end with this unit?
  93. New RUUD 18 Seer Unit.. Temp Difference Low when hott??
  94. Need Info to Purchase New Unit
  95. New unit blower rumble
  96. Problem with outdoor heat sensor
  97. payne, carrier.. others?
  98. Carrier 3 stage furnace 58MVC080-f-1-14
  99. Rheem
  100. Radiant barrier in Northern Climate - worth it?
  101. Filtrete filters are user error?
  102. Trane XV95/XL15i Details
  103. Grille to duct ratio
  104. Type 'B' Vent?
  105. PVC Ventilation Duct
  106. 5 ton 13 seer split heatpump Goodman
  107. Bryant or Goodman
  108. Like: Whiskey & cigarettes; I've sworn off 1" pleated filters
  109. Gaps where HVAC ducts connect to registers
  110. Excess condensation
  111. heat pump ?
  112. Opinions on New Carrier System Specs
  113. Replace Evap Coil for Carrier 38TXA042
  114. Goodman GMNT040 3-speed blower question
  115. Cleaning GSASD High-Efficiency Electronic Air Cleaner
  116. Hot air furnace VS Hydro air with boiler
  117. Do I need to change plenum size
  118. Weil McLain Ultra 155 - good price?
  119. Need to decide between 2 companies
  120. Mini-split for a family room; I thought it was going to be simple ...
  121. Would you recommend homeowners install a basic manometer on their return plenum?
  122. New System Help
  123. How do you supposed to size boiler?
  124. Ruud and Lennox price from contractors
  125. ? about Tempstar model
  126. New construction - load calc not realistic?
  127. Tie Lines - Replace or Clean/Cure
  128. Are two-stage heat pumps available in 1/2 sizes?
  129. Quiet air handler?
  130. New AC Unit Not Working - Goodman ARUF 2 TON
  131. re: 4TEE3C05A damaged A coil
  132. Question: Does ceiling fan blowing directly on a T-stat effect its performance
  133. 3.5 ton Unico mini ducts system for a 2000 sqft rowhome, too big?
  134. Single or Two Stage Heat Pump Compressor?
  135. Areoseal
  136. Aprilaire 400M
  137. help with home system?
  138. chrysler airtemp
  139. NEW TRANE TODAY AND NOT COOLING
  140. Trane comfortlink remote thermostat
  141. Goodman GMH95 Questions/Understanding
  142. First heating season with a Dual-Fuel. Balance point?
  143. Advice on PTHPs
  144. Trane XL 16i - Problem with Heating
  145. no soffits, no gable vents no ventilation
  146. Spend my money!
  147. Carrier split
  148. Santa Fe Classic Dehumidifier
  149. Fair quotes for Bryant vs. American Standard?
  150. NEW TRANE AIR HANDLER CABINET AND COIL INSTALLED SEPARATELY
  151. Are heating and cooling loads "symmetrical"?
  152. Need help on an old R-22 Lennox unit (my house)
  153. 20" furnace with vs blower available with tax credit?
  154. Sizing water heater
  155. NJ geothermal or dual-fuel ?
  156. Message to Homeowners/DIYer's:
  157. Humidity issues in senior living apt. complex
  158. Steps in a quality installation
  159. Mini-split unit
  160. furnace filter
  161. Condensing Boiler Efficiency: Inflated?
  162. NEW TRANE AIR HANDLER SWEATING
  163. Furnace termination options
  164. How many of you guys are sealing the inner liner of flex duct to the collar?
  165. Honeywell HR200B Ventilation unit
  166. Questions on blower door CFM results/CO results
  167. Split system or mini split
  168. Power surge, lightning, or just blown capacitor?
  169. Modulating Furnace BTU
  170. Lennox combo??
  171. best recovery machine?
  172. Hvac books to study
  173. Heating a 3000 sq ft house
  174. furnance condensate drain line
  175. New here with question about compressor failure
  176. Carrrier + Trane quotes for desert climate
  177. Concern with my Rheem install
  178. Ductwork - one installer says one thing, all others say another? Ugh!
  179. Contractor selection (help)
  180. Honeywell Enviracaire F300e
  181. Sizing questions
  182. Fujitsu mini-split help
  183. Help evaluating different AC systems for a townhouse
  184. Mid to low cost HVAC replace???
  185. 1.5 Ton Options
  186. Do all A/C condensate lines need a P-trap?
  187. Flex duct under blown fiberglass - what have you observed with condensation?
  188. What insulation should be added
  189. Fan Burnt Out - Dual run capacitor
  190. Which mid-tier heat pumps have "demand defrost"?
  191. Old T-stat with new 2 Stage Furnace?
  192. Need Advice on New System Rheem Vs. A/S
  193. Anyone work for Service Experts?
  194. Trane Perfect Fit Filter Housing
  195. high efficiency gas furnaces
  196. Does code allow condensate drains to go into a washing machine drain?
  197. Back again -- I'm the one with the smelly a/c
  198. Trane XL1800 speed selection question
  199. Zoning
  200. Replace Unit or Just Fan Motor
  201. Convert from Oil to Nat. Gas?
  202. Apartment central ac question
  203. Water cooled condenser
  204. Smelly AC related to condensate drain?
  205. Outside unit 13SEER vs air handler 10SEER ???
  206. R410A vs R22
  207. Opinions on Carrier zoning options (Infinity vs. Comfort)
  208. HVAC and Thermostats Matching
  209. Roof penetration for refrig lines - opinions needed.
  210. Wrong place? OK to bounce.
  211. Last minute decisions before install
  212. Insulating the boot in attic.
  213. Suggestions : Carrier Vs Lennox furnace and AC
  214. HVAC contractor recommendation for central Connecticut?
  215. A/C Noise
  216. What advantage is a variable speed air handler w/o a dual stage or dual compressor?
  217. A/C Air noise at return openning
  218. Cost too high for Carrier repair?
  219. Time For New A/C - Which Compressor?
  220. need help.condenser breaker trip
  221. Heat Load Calculation
  222. Performance Filter Cabinet and Air Filter
  223. Anyone tell me the EER rating of my heat pump?
  224. Lennox SLP98V vs Carrier Infinity 95 Furnace
  225. Dual Fuel Sizing Help Needed
  226. Cooling/Heating Performance Data Heat Pump
  227. Homestar, is it a national program?
  228. BPI standards for bath fan ducting?
  229. Two vs Single Stage
  230. Asbestos Options?
  231. Rheem Coils Problematic?
  232. Filters?
  233. American Standard vs Honeywell Themostat
  234. Bryant Hybrid 677D
  235. Evaporative or steam humidifier
  236. Is it Ok to replace a blower motor with one with a higher RPM?
  237. Ideal Superheat and Subcooling - Heat Pump
  238. Why use 2.5T coil with 2.0T A/C?
  239. PREFABRICATED CONCRETE SLABS
  240. text book way of determining system capacity?
  241. I am changing my AC unit. Salty emviroment.
  242. Scroll vibrates more on cool days. Indication of liquid return to comp?
  243. Just a thought - slave driving another cond coil for increased SEER
  244. Rheem vs. American Standard & So. Florida?
  245. Wet/Condensation around Plenum box in attic
  246. Compressor and fan running continuous
  247. Flashing around duct
  248. 2 stage vs single Bryant
  249. Missing air return!
  250. Help me pick between Trane/Lennox/Bryant