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Results tagged with furnace
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user 157
The furnace is part of an HVAC or central heating system used to generate heat. Typically this is done with gas, a heat pump, or an electric element. For hot water and radiator based heating, use the boiler tag.
2
votes
How can I safely put a plug on an old furnace motor that has just two wires
You shouldn't just attach a plug directly to the leads coming off a motor.
Mount the motor in or to the rest of the machine, and assuming it's metal, this establishes a grounding bond between them. …
- 29.2k
5
votes
Why does my furnace need frequent power resets?
I had the exact same symptoms with my natural gas furnace, and it turned out to be the flame sensor. …
- 29.2k
3
votes
Is it OK to turn off power to a fuel furnace?
Yes, it is fine to turn off the power, and you should. The wires going to the thermostat are low-voltage (typically 24V AC), but connecting the wrong ones can still potentially damage the control circ …
- 29.2k
0
votes
furnace creating a ground?
However, your gas line should be grounded, and that is likely how the furnace is grounded. … wiring of the furnace, as soon as they touch the furnace and gas line, they become a conductor to ground, and will be electrocuted. …
- 29.2k
6
votes
Is it expensive to switch from an 80% to a 90% efficient furnace, to comply with the new man...
The extra expense is entirely dependent on how easy it is to route these pipes from your furnace to a suitable location outside (which I believe has minimum clearance requirements from windows and doors … If your furnace is in the middle of a finished basement it's going to be much more expensive than if it's on the outside wall, simply because it requires opening up drywall, routing around obstacles in …
- 29.2k
3
votes
Why doesn't the "fan on" mode work after I installed a new thermostat?
You need to open the furnace, find where on the control board the thermostat wire is attached, and verify its wires are connected as you expect. … I highly recommend turning the entire furnace power off while connect wires to the control board -- shorting something out can mean frying the board. …
- 29.2k
5
votes
How do I build a firewall around my furnace/water heater?
Don't keep combustible materials near heat sources -- your furnace room not the place to store your paper towels, paint thinner, and gasoline. … , then consider the other sources of fire: one obvious one would be inside the furnace itself. …
- 29.2k
9
votes
How much energy will continuously running a furnace fan use?
I've been using the fan on my furnace much more recently, so I was curious about this as well. … I have a Luxaire G9T100014UPC13C natural gas furnace that is about 9 years old, and a Current Innovations CI300E-WIFI thermostat (which I'm controlling from my iPod). …
- 29.2k
8
votes
How do I connect a WiFi thermostat to my furnace's primary control?
Judging by the Honeywell R7184A Controller manual, you have one of these:
You described it as terminal 4 but the diagram just shows two terminals labelled "T", but that is fine:
I found a ma …
- 29.2k
1
vote
Adding a C wire to a new Honeywell WIfi Thermostat
Terminals R and C are a 24V AC power supply, from a transformer on the control board in the furnace.
The control board also has relays: one is for the fan, one is for heat. …
- 29.2k
5
votes
How do I connect my whole house humidifier to my furnace?
board, probably where the transformer lines come in
Look for labels on the transformer itself
Use a multimeter to measure between C and R terminals
Update:
Since you mentioned you have a 9GMXT furnace … Connecting
In general, by connecting between R and C, the thermostat motor will only have the ability to come on when the furnace is actively heating (it won't come on if the fan is set to 'On' mode, …
- 29.2k
5
votes
Where should my furnace filter go in a Lennox G40UHX series furnace?
Usually the filter is mounted between all the return ducting and the furnace itself - potentially it is installed at a strange angle or covered up with tape or something. … Here is a picture of mine, it's the darker colored piece the duct is attached to, with foil tape sealing it to the furnace housing. …
- 29.2k