DIY Home Improvement Forum banner

Discussions Showcase Albums Media Media Comments Tags Marketplace

1-20 of 500 Results
  1. HVAC
    R and W are connected to furnace and thermostat. But there are extra wires just loose in the furnace, but not to the thermostat. And the 2 wires for the stat aren't identifiable. Heat works but keeps running. What should I do
  2. HVAC
    I currently live in an apt in Pittsburgh, pic attached. It's 4 floors with 4 apartments on each floor, all have the same cast iron radiators. I think it's steam heat. One whole side of this building (right side in pic) gets toasty warm, you have to open windows in the winter. The other side...
  3. HVAC
    I need to add another cold air return to my system while finishing my basement I’ve framed the trunks and I need to figure out how to drop a return directly off of the main trunk. What takeoff would work best for this application? Thanks!
  4. HVAC
    Hi all, Building out our basement and I am coming across a few situations where it probably makes sense to move some HVAC registers (some are likely mandatory). For example, this register in the photo is where a shower is supposed to go. My questions are: Is this realistically a DIY project...
  5. HVAC
    Hey, I have an old (but digital) Honeywell thermostat for my heating/air conditioning, and a separate humidistat for my air exchanger. I'm looking for a suggestion for a thermostat that will also control the air exchanger (one unit to replace the two). I'm hoping it will smartly control fresh...
  6. New Member Introductions
    I am in the process of shopping for a replacement blower motor for my mobile home air handler unit. The original motor is a shaded pole motor, with 2.9 amp rating. Everything I find online lists the replacement as a psc motor, at around 1.5 amps. I always understood the amp rating had to match...
  7. HVAC
    Hello all, This morning, I woke up and it was chillier than expected. Thermostat said it was 68. System was set to heating mode and temp was set to 74. Air handler was running and air was coming from vents but there was no real force behind the air. Outdoor unit was not on at all. This has...
  8. HVAC
    I have an exposed wall stack with no supports. Looking at the Lowes website there appears to be supporting straps on the wall stack. The most important questions are: 1) Do you know what the spacing is recommended for support or these kind of straps? 2) What these straps are called? Can I buy...
  9. HVAC
    I have separate A/C and Hot water baseboard systems that each have Honeywell rth9585wf digital wifi Tstats. My heater is too old to connect a C wire to but the A/C has a C wire. Does anybody know if both Tstats can run off of the A/C (piggybacked basically) if I were to splice in the C wire from...
  10. HVAC
    We’re renovating a first floor powder room. Before replacing the floor, I’m wondering if there is a way to appropriately reduce or close off this vent. It is directly above the furnace and this tiny bathroom has always been SO hot. It’s currently a 12x2.25”. We keep the vent closed all year and...
  11. HVAC
    I'd love to add a delay (actually an interlock I think is a better approach) to my air handler's fan and heat-pump. My whole system is 24vac controlled, via a asdfasdfa thermostat. When it calls for heat-pump, the fan in the air handler starts immediately. But that blows cold air around the...
  12. Electrical
    Hello, all. We need to relocate an air handler to the attic, which in and of itself is no fun. There is not "permanent access" via stairs, just a large hatch, which means romex is EVERYWHERE. It's going to be extremely difficult to get the required clear space/decking for the AHU. My thought...
  13. HVAC
    I am really hoping somebody can help! I am on the final stretch of my DIY run (I have changed out the heat exchanger, a blower motor, ignitor board, belts, etc) but this new inducer motor is tripping me up. My old inducer motor had 3 wires (Black, Brown and Yellow) with a nice wiring...
  14. HVAC
    I am noticing that my AC system blows cold air for several minutes after turning on, then the blown air gets warm. It is like it's in defrost mode first. This morning outside temperature was 36 degrees, and I timed this to 5 minutes. Was wondering if this is a malfunction, and if there is a way...
  15. HVAC
    I noticed this year that my humidiier was not turning on when the inside humidity fell. Got as low as 25% RH. This system worked last winter. The humidifier and humidistat (Aprilaire 56) are installed in the return air duct. As shown here: When I turn the dial to “test mode”, the water control...
  16. HVAC
    New Heat Pump generating cold air in rooms when in defrost mode. Bosch BOVA 2.0 Split System Heat Pump, Honeywell t6 thermostat, legacy gas fired boiler w baseboard for auxiliary heat. Existing air handler that was used for old A/C unit. Three zones for 2400sf house in upstate NY. New heat pump...
  17. HVAC
    I may have a chance to get a new York brand furnace that’s been in its original packaging in a heated garage. Can anyone translate the serial and product numbers? I think it’s a down flow 2004. But it says 115 btu, and it might be a heat pump. I have a 1500 sqft on a crawl. Currently have a 20...
  18. HVAC
    Hope this message finds everyone safe and well. Long story short - purchased a home back in 2021 that was to be gutted and remodeled. Due to some structural issues, work was halted and I just haven’t given the project any investment (time or money). Before stopping, a reputable local AC company...
  19. HVAC
    Our heater has been sounding "funny" when it is trying to light. This morning it failed to light and produced an error "High Pressure switch failed to close. - Check inches of water column closing of high pressure switch on heat cell.......inspect vent and combustion air inducer for correct...
  20. HVAC
    I'm a homeowner in Key West, FL. We've been in this home for almost 10 years now. The home is a two story home. About half of the second story is a vaulted ceiling living space. To the best of my knowledge it goes metal roof> roof decking> batt insulation> beadboard panels on the ceiling. The...
1-20 of 500 Results
Top