Tag: hvac

86 How can I add a "C" wire to my thermostat? 2011-12-06T17:37:33.713

23 What are the pros and cons of a whole house humidifier? 2010-11-15T01:00:23.670

21 Humidity Levels 2010-07-28T19:37:22.097

21 How to improve HVAC system to make upstairs rooms more comfortable? 2017-12-21T12:05:40.387

19 Is running ethernet cable through an air return allowed under US code? 2011-09-10T20:47:35.447

18 Do thermostat-controlled, auto-adjust HVAC vents exist? 2010-07-22T20:03:32.617

17 What's the most common cause of A/C refrigerant lines freezing? 2011-09-12T16:45:16.620

17 Ethernet cable instead of Thermostat wire? 2012-01-13T18:26:20.137

16 Why don't programmable thermostats automatically switch between "Cool" and "Heat"? 2011-10-03T21:33:02.407

14 How do you trigger the HVAC with wiring only? 2012-05-14T18:20:03.347

13 Is it worthwhile to have ductwork cleaned? 2010-07-23T21:30:23.827

13 Would providing shade for my air conditioner's condensor improve its efficiency? 2013-08-20T01:01:52.327

13 Can I run a central air conditioner in the winter? 2015-02-22T21:33:42.357

12 How can I transition a square duct to round of the same outer size? 2017-02-22T15:28:00.267

11 How can I calculate how large an airconditioner my house needs? 2010-08-16T19:27:35.747

11 Does lowering the blower speed of a forced-air furnace lower its efficiency? 2010-12-12T21:50:07.527

11 Why is my air conditioner tripping the circuit breaker? 2013-05-21T14:54:47.550

11 Why is my Nest thermostat not working with A/C? 2013-06-05T03:21:43.123

10 How can I increase the heating efficiency of a forced air system? 2010-11-01T16:58:17.683

10 Are new "low noise" whole house fans actually quieter? 2011-01-12T13:50:53.083

10 How do outdoor mist-cooling A\C units fare in real-world usage? 2012-06-30T03:10:51.047

10 What does a Summer/Winter switch on furnace air ducts do? 2013-02-25T19:58:35.083

10 Why won't HVAC supply stores sell directly to the public? 2013-11-19T20:06:51.260

9 What type of regular maintenance should I be doing on my central air conditioning unit? 2010-07-23T18:41:21.060

9 How much cooling can I expect from a central air conditioner? 2010-08-03T00:08:56.480

9 Should I relocate the HVAC unit in my attic? 2012-10-12T17:24:34.520

9 What could be causing an orange flame on all appliances? 2014-01-16T16:55:34.983

8 What are the pros and cons of two AC systems vs a dual zone system? 2010-12-21T04:46:45.057

8 How can I reclaim heat from an enclosed furnace room? 2012-02-20T17:41:58.397

8 How much less power does a three-phase air conditioning unit use than a one phase unit? 2012-06-01T03:58:48.123

8 How do I identify the C terminal on my HVAC? 2013-11-08T18:11:36.907

8 Can I modify the vent from my high efficiency furnace to prevent possible damage to the exterior of my home? 2013-12-19T13:43:59.207

8 What kind of wall switch is needed for a natural gas fireplace to ignite consistently? 2014-01-12T20:13:27.850

7 Where should my furnace filter go in a Lennox G40UHX series furnace? 2010-07-29T22:35:34.550

7 How often should I run a bleach and water solution through condensate lines? 2010-08-02T17:45:42.433

7 Is there any legitimate reason to have a direct vent between utility room and attic? 2011-01-02T03:33:14.047

7 AC issues / Insulation of vaulted ceiling 2011-07-11T17:50:52.040

7 Why are almost all of my house's HVAC floor registers placed near exterior windows? 2012-02-18T14:15:16.943

7 Why did an HVAC installer add this PVC pipe? 2013-08-19T17:55:05.267

7 How can I improve second floor HVAC performance? 2015-02-23T02:09:46.287

7 Decrease dust in an old house, forced air 2015-03-07T12:38:00.493

7 Should I bypass a thermal cut-off switch on my oil furnace? 2016-02-16T14:41:24.130

6 Should I apply car wax to the outside of my air conditioning unit? 2010-07-28T19:37:36.013

6 How do I install a jump duct? 2010-08-21T13:16:12.250

6 Is it OK to have heating registers and returns near the ceiling? 2011-01-27T21:14:46.750

6 Heating/cooling system recommendations for this small house? 2011-06-15T18:02:39.570

6 Why aren't Geothermal heat pumps more common? 2011-07-09T14:05:20.327

6 Can an HRV replace the air exhausted by a range hood? 2012-01-04T20:59:27.407

6 How can I determine why my A/C runs all day? 2012-05-29T16:05:19.310

6 How can I prevent my HVAC condensate drain line from freezing? 2013-01-24T21:50:26.463

6 Should I insulate air conditioner coolant pipes? 2013-05-14T11:58:08.870

6 Is there a trick to getting round HVAC duct pieces to fit together 2014-06-08T23:09:04.233

6 Why is my power flickering across multiple circuits? 2014-11-03T12:05:52.313

6 Does anyone have experience with small heat-recovery air exchangers? 2014-11-14T20:27:00.593

6 Is it OK to have an air conditioning vent above a kitchen cabinet? 2016-07-23T17:55:39.900

6 Can I cut a hole in a 2" x 8" joist that is less than 1/3 the height of the joist, leaves at least 2" above and below the hole, but is 10" wide? 2016-11-04T16:44:06.633

6 Rust and ash in my AC/furnace - should I be concerned? 2017-11-09T20:51:15.157

5 two condensate drains? 2010-07-26T18:21:21.610

5 Is an interior laundry room without an HVAC vent a code violation? 2010-08-31T17:32:55.587

5 How do I install a wood stove as an auxiliary heat source? 2010-12-09T18:55:54.900

5 HVAC vents - does wall or ceiling mount matter? 2011-05-30T17:05:28.950

5 When insulating with closed-cell Spray Foam, what ERV and HVAC resizing considerations should I bear in mind? 2011-09-02T04:22:15.953

5 What concerns should I have installing a HVAC unit and ducts in a home that's never had it? 2011-09-09T23:08:57.873

5 How can I keep a bedroom warmer in summer? 2011-09-12T02:56:34.227

5 Is there a wireless thermostat that will make relocating easier? 2011-09-19T12:31:26.833

5 Can I run heating duct work through the attic? 2011-10-27T13:33:59.457

5 Does lack of zone control delay hurt heat pump? 2011-11-14T14:33:08.630

5 Can I reroute this air duct? 2011-12-05T21:50:18.813

5 Can I using a 3-phase connection to power 1-phase AC unit? 2011-12-22T09:50:08.450

5 Is it safe to install a sconce light box inside a return air space? 2012-01-21T21:54:57.607

5 Is it possible to recover waste heat from a boiler? 2012-02-01T17:23:53.197

5 Do I need to increase my HVAC trunk line size? 2012-04-12T22:07:10.530

5 How can I protect A/C condenser wires? 2012-04-20T13:20:16.977

5 Should I be concerned about fridge/freezer airflow? 2012-08-10T16:43:29.440

5 How to best keep floor vent by shower dry/mold free? 2012-08-24T17:29:46.227

5 Where should carbon monoxide detector be located? 2013-03-03T07:27:20.317

5 How to find areas where heat/coolness are lost? 2013-05-18T17:48:27.360

5 What is the maximum angle I can set my window AC unit? 2013-08-17T03:51:32.793

5 Controlling separate heat and AC devices from a single thermostat 2013-12-29T19:44:37.400

5 Who do I hire to design my home HVAC system? 2015-05-24T18:13:43.520

5 Can I install A/C in a home built in 1924 which has round heat ducts in the ceiling? 2016-03-16T20:11:51.917

5 Will pipe insulation stop condensation on an HVAC drain line? 2017-07-21T16:43:17.840

4 Would putting a sprinkler on my roof help cool my home? 2010-08-01T03:57:49.780

4 Geothermal Resources 2010-08-04T13:40:27.057

4 How should I wire this White-Rodgers fan and limit control? What about the thermostat? 2010-12-09T17:46:28.980

4 What's wrong with my thermostat (fan / limit control)? 2010-12-15T00:26:00.797

4 Why would a furnace overheat with a standard density filter? 2011-01-02T04:35:07.577

4 ductless AC split systems? 2011-04-20T03:31:36.673

4 DIYer to skilled tradesperson 2011-04-27T16:36:38.287

4 Air conditioning on a shoestring budget 2011-06-09T14:57:21.003

4 Workarounds for single-zone HVAC? Second thermostat? Adjust vents? 2011-07-06T16:44:53.100

4 Recommended proximity of HVAC vent to return air 2011-07-07T20:47:10.673

4 Adding AC to forced air system 2011-07-22T21:35:27.470

4 What are effective ways to frame a return air duct? 2011-09-22T13:31:03.937

4 Where should I install a Pellet Stove to supplement my boiler? 2011-10-10T14:52:26.380

4 Why is my furnace blower noisy when it starts? 2011-12-24T23:20:29.877

4 Why is my furnace filter alarmingly clean? 2012-01-02T03:00:17.457

4 What would cause my furnace to only work with the filter removed? 2012-01-18T13:48:00.723

4 What could cause a furnace to short cycle? 2012-01-22T21:37:26.200