View Full Version : HVAC Heating & Cooling

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  1. insulating basement hot water pipes
  2. combining hot water coil with electric hot water heater
  3. The cost of efficiency
  4. Downside of a More Powerful Attic Fan?
  5. Adding exhaust fan to upstairs loft?
  6. Flushed radiant water heater, now confused
  7. Central A/C pipe freezes
  8. Outside Condenser Unit Off
  9. either fan or ac unit works
  10. Boiler problems
  11. Need to move old raditor?
  12. Outside Breaker Trips
  13. Old Oil Fired Steam Boiler with Side Arm Water Heater
  14. Heating oil substitutes
  15. Switching Relay
  16. Heat Pump Thermostat Wiring.
  17. Natural Gas Block
  18. Lights blink/dim
  19. Heating system upgrade.
  20. York Furnace and A/C 2002 - wire cut.
  21. Howling return
  22. replacing baseboard
  23. A/C flow very weak on first floor
  24. Wood Propane Wood Pellets
  25. Dual heat systems
  26. Do all thermostats switch reversing valve every at every start?
  27. Sizing W-M Ultra to balance heating efficiency & DHW demand
  28. Geothermal
  29. Sizing an Indirect Hot Water
  30. old home - radiated heat - move pipe
  31. Timer for Oil Fired Hot Water Heater
  32. Main trunk sizing
  33. New A/C installed...wet slab..normal?
  34. Recirculating central vacuum air
  35. Geothermal "horizontal" loop circulation
  36. insulate the heat duct?
  37. Venting a gas water heater
  38. New Heat Pump Price Check
  39. Honeywell L8148 Aquastat
  40. Return Air placement problem?
  41. Arizona
  42. Open-Loop Heat Pump - Power Efficiency
  43. Underground air return ducts for HVAC
  44. Please help me design a new heating system!
  45. Clothes Dryer Makeup Air - A Better Way?
  46. Aqua booster is leaking and need to bypass
  47. A/C Question: Just replaced Fan Control Unit and now the Blower false starts cooling
  48. Working with propane and natural gas questions
  49. older air vents?
  50. Low Temperature Hyronic systems?
  51. Relocate Oil Tank
  52. Any idea what my A/C problem is?
  53. RePlumbing old hot water system for efficiency
  54. Do I really need 2 furnaces?
  55. Planning stage for Geo Thermal
  56. Why does condensate miss the pan?
  57. best heating unit for small radiant with solar backup?
  58. refrigerator problem
  60. Lennox!
  61. Correct prep for natural gas line extension?
  62. Adding indirect water heater on older ('82) weil-mclain HE-5
  63. Moving / resizing heating pipes
  64. Air handler / duct work problem.
  65. A/C closet not enclosed
  66. AC Coil
  67. Hey, itís me again. Hang on for this one!
  68. How Many Thermostats for 3 Attic Exhaust Fans?
  69. bleed valve leaking
  70. Bradford White Defender / gas water heater tripping
  71. Heat Pump leaking?
  72. Need Advice: Repair or replace system
  73. A/C condensation drip spout = soggy ground
  74. Furnace Filters size
  75. Lennox Airhandler Condensation
  76. 2 Furnace setup
  77. How much duct work fo I need
  78. How do you stop an airhandler from condensating
  79. Closing the ducts
  80. Would you use type L in a boiler/DHW indirect loop
  81. Dryer vent fire
  82. Clogged Drain Line Caused Drip outside drip pan
  83. How long does in take for Duct Mastic to dry
  84. need to purge a furnace gas line?
  85. water to air heat exchanger
  86. Ventfree fireplace
  87. Cutting Wirsbo Joistrak
  88. New construction - gas heating recommendations needed
  89. Installing radiant floor heating under subfloor / hardwood floor.
  90. Oil cap lock?
  91. Geothermal Heat - Old house is it worth it?
  92. Heated towel rail
  93. AC Fan birdcage screw stripped
  94. Need Help adding Vent...
  95. Backflow Preventer
  96. Hot air heat question
  97. Kickspace Heaters (Beacon Morris)
  98. Expansion tank sizing
  99. Air Conditioning & Heating QUOTE - How bad???
  100. Taco Freedom Flanges Failure
  101. MonoFlow and Pex
  102. Boiler pump chatter
  103. Connecting Old Radiators to New Boiler
  104. monoflow "T"s in a series loop?
  105. Is a Williamson furnace a g ood choice?
  106. am I saving money this way?
  107. Air setting for Beckett Gun
  108. Direct Vent Boiler Into A Standard Flue?
  109. Air Exchanger
  110. closing off b vent chimney
  111. Hotwater baseboard does not heat up?
  112. Fixing a heat pump
  113. underground duct
  114. Suntec A2VA-7116 leaking?
  115. Old house with old air ducts...
  116. Looking for a low cost propane room heater
  117. pilot light wont stay light on furnace
  118. Oil heat -- efficient temps... and electric heat in one room?
  119. radiator is filling up with water?
  120. Confusing Situation
  121. Eliminating a baseboard heat unit for doorway
  122. removing asbestos-covered pipes
  123. Adding exhaust fan to 1st floor bath.....
  124. Manifold Sizing
  125. pilot light doesn't work-Modine PD30 Gas Heater
  126. Flat Panel Radiators
  127. Hot water zone Valve
  128. Ripped open the ceiling
  129. Kickspace Heater ?'s - Monoflow Tees needed?
  130. Bell&Gossett 100 Series Repair
  131. Insulating exposed pipes in bottom unit of duplex
  132. Most flexible pipe insulation
  133. Slant coil problem
  134. Oil furnace in closet
  135. Installing a pellet stove
  136. Airtrol fitting
  137. Furnance
  138. Maytag HVAC
  139. Help-NFPA 90A/90B Air Handler Install Clearances
  140. Taco ESP Zone valves
  141. Upgrading Honeywell Thermostat
  142. Cast Iron or Bronze Circulation Pump?
  143. lennox pulse g14Q3 wont start
  144. Blue/Green oxide on pipe feeding HVAC unit
  145. Whole House Humidifier
  146. Basement - Air movement
  147. New Furnace Advice Sought
  148. I have a dinosaur furnace/boiler in my basement...
  149. Help on heating system additions...
  150. Hydronic radiant heat stat
  151. Pump problem?
  152. Zone 3 barely working
  153. Boiler piping
  154. Dual Fuel Boiler Problems
  155. Duct sizing
  156. Bad Zone Valve - boiler
  157. Variable speed or std. air handler?
  158. Should I try to clean the A/C coils myself?
  159. Water is not filling up and heating in second floor radiators
  160. Condensate Removal Pump
  161. Indoor Grilling - downdraft - jenn air
  162. Oil Fired Furnace
  163. Lennox LF24 furnace
  164. Manual J Does it sound correct
  165. Installing a Wood Stove
  166. fireproof floor to floor register
  167. Natural gas air conditioner ???
  168. S9301A1001 Integrated Boiler Control
  169. zone valve problem
  170. Crawl Space HVAC
  171. Towel warmer
  172. Sealing Pex Radiant Tubing with a Sealant??
  173. taco 007 flange compatability
  174. AC evaporator with Space Pac/ GSHP buffer tank.
  175. HELP! Ignorant Woman Seeks Truth!!
  176. Oil furnace cycle problem
  177. Oil line valve open/closed?
  178. Dielectric between black pipe and copper?
  179. Looking for a GE Thermostat plastic frame
  180. Can I use one thermostat?
  181. Hydronic Towel Warmer
  182. Interior wall is now an exterior one
  183. Hot water is not-so-hot
  184. Weil McLain boiler problems.
  185. Floor register
  186. My Taco is Ticking
  187. Can you recommend a replacement for Norton 201N?
  188. electric baseboard question
  189. Compact frige question
  190. Radiant heat question.
  191. two heating systems off of 1 thermostat?
  192. Furnace not lighting
  193. closing up my house for two months
  194. efficient furnace vs insulating
  195. Knocking sound from radiant heat
  196. Humidifier Control
  197. Positive airflow out of condensate drain into living space
  198. Replacement for Grundfos UP15-24F pump?
  199. Wiring a taco zvc404
  200. How Do I Attach Pellet Stove Vent Appliance Adapter?
  201. Island range hood still leaking
  202. (uk heating) steam from elson tank
  203. Weil mclain boiler not lighting
  204. Pex in crawlspace to radiator
  205. Boiler Heating Question
  206. Little heat in one zone
  207. boiler circulator bad?
  209. Check valve on a closed loop hydronic system?
  210. AC in attic?
  211. Resin Ceiling Registers
  212. Getting heater fan to start
  213. Oil furnace trouble
  214. FYI: new york ground source heat pumps
  215. boiler won't stay lit
  216. A question about installing a gas cut off
  217. Adding baseboard
  218. Furnace drain problem
  219. humidistat??
  220. Intermittent ignition on W-M boiler, Beckett AF oil burner
  221. Chiller Evaporator can effect to pump get trip?
  222. CO sensor range 0-50PPM
  223. Use of Reflectic for infloor radiant heat
  224. White-Rogers Thermostat to Hunter 44660
  225. Monoflow tee and Pex
  226. Tekmar 256 and Honeywell L8148A
  227. are the Taco F4 and F5 compatible?
  228. Marketing on A Budget A Must Read
  229. boiler circulation problem
  230. Custom cycling of circulator and zone valve...
  231. "flexible" pipe for forced hot water??
  232. Radiant under thick slab...
  233. Tekmar 256 to a L8148E
  234. Heat Pump Not Coming On
  235. Newbie Forced-Hot Water Help in Frozen NH
  236. Rigid Copper for A/C LineSet
  237. Shower tap question
  238. Of wood boilers and controls
  239. need assistance with baxi luna operation
  240. ++ Garage Heater ++
  241. Whole House Humidifier Install
  242. T-stat obsolete...now what?
  243. High Humidity in house
  244. An AC Return & Vent no longer needed
  245. Chemical odor from central heating's chimney
  246. Gas Valve Solenoid
  247. Copper to PEX
  248. Furnace outside air intake sweating
  249. multi zone supply & return spacing 8"... 4" ??
  250. Hydronic heat problem?