16,611 reputation
13881
bio website gregmaclellan.com
location Canada
age 32
visits member for 3 years, 9 months
seen 52 mins ago

Professional software developer, with several years working on industrial control and monitoring systems. Slowly remodeling parts of my house.


5h
comment Does my crawl space need venting
@JustinK that isn't strictly true, depending on the type of crawlspace. A crawlspace, like any other space in the house, is either conditioned space or it's not. If it's conditioned space, it's part of the building envelope and should be insulated accordingly (including vapour barrier). If it's not conditioned space, then it should separated accordingly and as far as the rest of the house is concerned treated as if it's "outside" (meaning: there is insulation and vapour barrier between it and the rest of the house).
14h
comment Installing water softener outside or inside? Already have“Easy Water” device. Does that change water hardness grains entered into new water softener?
You can get hardness test strips online for $10-20. You need them to properly calibrate your softener anyway, and it helps to test how effective it is after. Depending on the water source (even the city uses well(s) and/or lake/river intake(s)), you may also have some seasonal variation, so it doesn't hurt to check it a couple times a year or if you notice build up or that the water is too soft. You'll also be able to use one to see that the electronic softener is in fact a scammy, useless waste of money.
1d
comment Light won't turn off
Can we assume that you didn't pay attention to what wires were connected to what prior to removing the old fixture?
2d
answered Should I remove existing drywall before framing a wall around HVAC ducts?
Apr
21
revised Do brass ball valves have to be oriented with the flow of water?
added 57 characters in body
Apr
21
answered Do brass ball valves have to be oriented with the flow of water?
Apr
14
comment How much energy will continuously running a furnace fan use?
@alx9r That is fair, but I will also say I can feel a difference in the force of air coming out of the registers in the two modes. It's particularly noticeable when just the fan is on and then the heat turns on (you can actually hear and feel the air velocity slow down). So in terms of this question, the measurements I made are not that useful, but the fan is definitely going faster in fan-only mode vs heat. I've been doing the same thing as TomG for last 1.5 years (have a schedule that runs the fan for 10-15 minutes every hour or two) so I notice the fan speed change at least once a day.
Apr
14
comment Wireless Thermostat C-Wire Substitute
Very nice idea to just use the 'fan-only' wire as common, since it's practical to live without fan-only (whereas clearly it is unthinkable to live without wifi connectivity). One note though: on my furnace, the fan-only (G) connection actually runs the fan at high speed (verified by measuring the current draw using an ammeter). Particularly interesting is when heat is called for while fan-only is on, the furnace slows down the fan and then fires up the burner.
Apr
10
comment Can armored bx cable come into contact with other metal objects?
"BX cable" is the product name of the original armoured cable, which has since been replaced by modern type AC. It's now used colloquially in the same way that "Romex®" (a brand name) is often used to refer to any Type NM cable.. in the same way people use "Kleenex®" to refer to any tissue paper. That said, when someone says "BX" it's not clear if it's AC or MC. In my region I typically only ever come across MC (I don't think the box stores even sell AC), and I used to always call that "BX" as everyone else I knew did.
Apr
9
answered How can I remove a dead bolt?
Apr
9
comment How can I remove a dead bolt?
This is one of those questions where a picture can help immensely.
Apr
7
comment What would cause lack of Oxygen in cellar
@DogEars As already mentioned many times.. Seriously -- don't test for possible presence of flammable gasses by lighting a freaking flame!! You are on the path to a Darwin Award here...
Apr
1
awarded  Booster
Mar
30
awarded  Nice Answer
Mar
28
answered Adding a C wire to a new Honeywell WIfi Thermostat
Mar
25
revised How to SLIGHTLY widen bored hole in 2x6
added 472 characters in body
Mar
25
revised How to SLIGHTLY widen bored hole in 2x6
added 57 characters in body
Mar
25
answered How to SLIGHTLY widen bored hole in 2x6
Mar
24
comment How can I fix a leaking expansion tank?
@Bill It really depends on where you have valves. The end result is you want to make sure that the part you're disassembling is not pressurized. Failure to do so will generally result in anyone who happens to be watching to break into uncontrollable laughter, and you having to change into dry clothes (and learning a hard lesson about shut-off valves).
Mar
24
comment Why do I have 170hz rather than 50hz on my lighting circuit?
My first thought was this was after a fluorescent ballast as well.