17,670 reputation
14396
bio website gregmaclellan.com
location Canada
age 33
visits member for 4 years, 5 months
seen 17 hours ago

Professional software developer since 2000. Have worked on many open-source projects, and am currently employed as a senior web application developer.


Dec
8
comment How can I mount an LCD TV onto the *wall* of an RV?
Interior or exterior wall?
Dec
6
revised Can I reroute this air duct?
added 239 characters in body
Dec
6
revised What steps should I take to figure out which alarm model I have and how to go about installing a missing sensor?
added 368 characters in body
Dec
6
answered Can I reroute this air duct?
Dec
6
answered What steps should I take to figure out which alarm model I have and how to go about installing a missing sensor?
Dec
4
comment Line tester reads power to 220V outlet when the breaker is off
Voltage back-feed is still voltage. There are still 220V on that line, if that's what your meter is showing you. The difference is that it's a very small current, and not enough to turn on the Knopp tester you showed. This also MAY mean that it won't injure you (current is what kills you, not voltage), but unless you're willing to risk your life to do a little electrical work, I'd recommend finding out what you need to shut off to get your meter to read 0 before touching anything potentially live. Use a non-contact testor, and check every time before you touch anything that may be electrified.
Dec
4
answered Line tester reads power to 220V outlet when the breaker is off
Dec
2
comment Apartment building's thermostat located in unheated common area is cooking the tenants
Please let us/future readers of this question know what you end up doing and how it turns out, too
Dec
2
answered Apartment building's thermostat located in unheated common area is cooking the tenants
Dec
2
comment Basement Insulation
@shirlock Can you please verify your vapour barrier statement? Installing it on the cold side of insulation goes against everything I've read on the topic -- though it also may depend on climate.
Dec
2
revised Should I add insulation to basement ceiling?
deleted 118 characters in body
Dec
2
answered Should I add insulation to basement ceiling?
Dec
1
comment How do I diagnose a thermostat and HVAC that intermittently doesn't respond?
Just to confirm, this is a forced-air gas furnace? How old is it? When you're saying "heating up" are you referring to the house (and temp shown on thermostat), or the furnace? Is it blowing hot air after you mess with it? Is it blowing any air at all? Is the furnace itself turning on or making any noise at any point during this? Modern single-stage furances usually work like this: Thermostat calls for hot air; Exhaust fan kicks on, and then gas starts and ignites; After a minute or two, the blower fan kicks on and now you feel hot air coming out of the vents. What is yours doing?
Dec
1
comment How do I diagnose a thermostat and HVAC that intermittently doesn't respond?
Does it eventually heat up on its own, or do you have to do something first? What is the overnight temperature (what is it set to, and what does it actually get to)?
Nov
29
comment Why won't my furnace turn off?
When you say it "runs for a very long time" how much time are you talking about exactly? Furnances normally run the blower for a while after the actual heating shuts off -- basically, until the core is actually cold (I think they are both timer-based and temperature-based controllers, depends on the furnace).
Nov
28
comment What are the “rules” for connecting different kinds mains electrical wires?
Note: cu/al is obsolete, your new stuff should all show the CO/ALR rating.
Nov
28
comment How can I wire an array of ceiling lights for easy reconfigurability?
This would work. I'd actually recommend using smart switches (or at least wiring so you can in the future) such as Insteon or UPB, as you can program scenes so rather than multiple dimmers, you can press one button and have all the lights go to preset levels.
Nov
28
awarded  Enlightened
Nov
28
awarded  Nice Answer
Nov
24
comment How do I refinish a bathroom ceiling after it got moldy and peeled?
Every bathroom requires an openable window that provides at least 1.5 square ft of air flow area when open – 2006 IRC [303.3] OR mechanical type ventilation: 50 CFM intermittent or 20 CFM continuous operation – 2006 IRC [303.3X]