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visits member for 2 years, 4 months
seen Dec 17 at 20:09

Jan
13
comment How can I reduce the noise from a bathroom fan?
+1 just replace it. Good mounting of a vibrating fan might lessen the noise, but the only proper solution is to eliminate the vibration in the first place. Good fans don't vibrate - they may make audible white noise, but they don't vibrate.
Jan
13
answered My 5th (top) floor apartment is shaking; what might cause this?
Jan
13
answered What should I look for when diagnosing electrical circuit gremlins where load is much less than capacity?
Jan
11
comment Will I see any performance gains if I reconfigure my thermostat to control the second stage of my 2 stage furnace?
This is a good answer. In my suite, the thermostats are set back to about 50F when we leave (there's an automation interlock with the intrusion detection system). When someone arrives back home, the HVAC controller calls for both stages of heat. This heats the suite at about 9F for every 7 minutes. With only one stage, it takes about 4x as long. So, with two stages of heat we can allow the temperature when unoccupied to drop further, thereby reducing waste heat while absent, and still return to a comfortable temperature in the same amount of time when you get home.
Jan
8
comment What are the proper materials and method to hang heavy-duty shelves in a garage for storage?
@oscillatingcretin I've had luck with specialty heavy duty casters at mcmaster.com. I just retired three of the same shelves as your pictures with swivel casters. You might want to consider that casters increase the risk of toppling significantly for two reasons (1) the offset design common to most casters can move the contact point with the floor closer to the center of gravity, and (2) rolling means that you now have a live load whose center of gravity is much higher than a braking force that would typically be applied at the bottom of the shelf (think caster running into a stick).
Jan
1
comment Why is the first shower of the day is colder than the second?
+1 for digging up the manual and suggesting over temp + mixing valve.
Dec
31
comment How can I center a drill bit so that it drills absolutely straight down rather than perhaps a little off to the side?
Are you pilot drilling first? Whether or not you use a guide, a drill press, or freehand, pilot drilling will result in more precise starting position and path of the hole. Even CNC machines are usually programmed to pilot drill holes beyond a certain depth and usually center drill all holes before running the final bit through.
Dec
31
comment How can I add a “C” wire to my thermostat?
Couldn't you repurpose one of the existing conductors to be common then "add-a-wire" to replace that conductor?
Dec
13
comment Is there a technique to make a shower mirror fog-free?
@sharptooth - That's not the heart of my claim at all. Rather, my claim is that water heaters have a metal chassis in contact with water in close proximity to the electric heating element that is meant to provide a good path to ground in case of failure. And that in a normal installation where the chassis is grounded a la electrical code, that grounding is the primary means of electrocution prevention. And that similar electrocution prevention by grounding is not possible for a heated mirror because there is no chassis to ground.
Dec
13
comment Is there a technique to make a shower mirror fog-free?
@sharptooth - Good point about plumbing not necessarily being grounded. But are you saying that the tanks/drums of water heaters aren't grounded either?
Dec
13
comment Is there a technique to make a shower mirror fog-free?
@sharptooth - We needn't worry about electric water heaters because the drum of the water heater and the plumbing has a good path to ground. You cannot say the same about a mirror in a shower - the human could easily be the best path to ground. I'm not saying that the mirror heaters are dangerous, I'm just saying it's not apples-to-apples wrt electrocution risk.
Dec
13
comment Is it cost effective to close some heating vents?
In that case, I'm fairly confident that closing vents and doors to unused areas will reduce the cost to maintain the used areas at a comfortable temperature.
Dec
13
comment Is it cost effective to close some heating vents?
Is the return air vent in the storage room the only one? If so, it may actually be better to leave the door open, otherwise the furnace might find a much colder source of make-up air.
Dec
13
comment How much energy will continuously running a furnace fan use?
500 watts seems reasonable. What kind of power meter are you using for this test?
Dec
13
answered How much energy will continuously running a furnace fan use?
Dec
12
comment What are the proper materials and method to hang heavy-duty shelves in a garage for storage?
@oscilatingcretin Thanks. The rep isn't a big deal to me, just trying to help make the internet a bit better. It does seem strange that the bounty and accepted answer are awarded to different answers though. Good luck with your project.
Dec
10
comment How much energy will continuously running a furnace fan use?
@Tester101 - What your answer calculates hardly qualifies as an estimate. An estimate would have a usefully small uncertainty associated with it. Your answer does not. The power factor for a fan could easily be 25% or less, which would mean that your "estimate" is wrong by a factor of 4. Perhaps it's as low as 10% which would result in an error of 10x (e.g $4.75 vs $47.53 per month). My point is your answer does not measure power factor and power factor is essential to determining real power use.
Dec
10
reviewed Reviewed What do you do/ask when hiring a contractor
Dec
10
awarded  Custodian
Dec
10
reviewed Reviewed How do you determine if a door is Right Handed (RH) or Left Handed (LH)?