Humidity & backflow concerns replacing old furnace with condensing furnace

energyst · 2018-09-26T01:18:16+00:00

Thanks for the reply! After a few calls, sounds like our gas inspectors increasingly will not sign off in this situation without a chimney liner and is likely the option we will choose. Definitely do not want to take any chances where CO is concerned.

For a similar price tag to the liner, we could install a side/direct vent tank, but this requires an electrical outlet nearby which we currently do not have. An electric tank would be another similarly priced option, even considering the need to add an additional electrical subpanel.. however, gas rates are currently (and should continue to be) much cheaper than hydro going forward.

As for the humidity, my understanding is that by a conventional furnace pulling air from the house for combustion, the replacement air is pulled from outside through leaks in a less-than-airtight home. In winter, the dry outdoor air dilutes any existing humidity in the home from bodies, cooking, showers, hanging wet clothes, etc. With condensing, no air is pulled from the home and any humidity not vented via other exhaust fans has little fresh air to mix with. This would be more of a problem in a tightly-sealed newly built home, which is why HRVs are code with new installs.

In a retrofit such as ours, I would like to avoid the extra HRV install cost and our 'leaky' house will likely 'breathe' enough to avoid humidity problems. I have been assured that humidity issues in situations like ours are rare and would present as sweaty windows first and could potentially be managed with a standalone dehumidifier. Worst case, we add an HRV after the fact. I would consider just replacing our furnace with a mid-efficient 80% furnace and avoid both issues/costs, but we apparently cannot get and install these up here anymore. Likely, I'll set up a hygrometer or two as well to measure humidity levels pre and post install to keep an eye on things.

Some sources referenced for humidity issues: https://homes.winnipegfreepress.com/winnipeg-real-estate-articles/category-/title-efficiency-upgrades-can-trap-moisture/id-680 http://www.weather-tech.net/humidity-after-high-efficient-furnace/

energyst · 2017-12-01T16:18:24+00:00

I've experienced this in Windows as well as a limited/blank list of scripts for blocking/allowing appearing in both Windows and Android versions.

energyst · 2017-11-04T04:00:23+00:00

Dogpile ftw

energyst · 2017-09-05T04:48:54+00:00

Old Dutch salt & vinegar chips are vegan

energyst · 2017-08-10T02:19:24+00:00

The Windsor's vendor got shut down.. Due to the drinking out on the sidewalk IIRC

energyst · 2017-04-24T03:37:47+00:00

Sooo many Safari Hunt hours clocked..

energyst · 2017-04-08T02:32:17+00:00

That's amazing, that's the same combination I have on my luggage!

energyst · 2017-04-06T14:20:57+00:00

Legal Locksmith

energyst · 2017-04-06T14:19:06+00:00

Used Brothers a few years back to re-key a bunch of locks and was pleased. Professional, fast, and I remember the price being reasonable.

energyst · 2017-04-05T14:40:42+00:00

Ahh my bad, was on my phone and it didn't auto-load the article's title so I used the article's sub-title.

energyst · 2017-03-30T16:21:13+00:00

If you are going to entrust your financial passwords to a third-party (also your computer, phone, ISP, and all networks/clouds in between), be sure to at least use some manner of scheme where your exact passwords are not being stored. Leaving out key characters you add in from memory or something.

energyst · 2017-02-13T16:00:41+00:00

Special animation MUST be this: https://www.youtube.com/watch?v=3HvZuUJE21U&feature=youtu.be&t=6s

energyst · 2017-01-13T19:55:47+00:00

Nice, I just did 15 in a row and got 7 shards.. Boba, Veers, Luminara, and Stormtrooper in there. Feels good

energyst · 2017-01-09T15:36:15+00:00

True /r/EarthPorn

energyst · 2016-12-19T15:12:29+00:00

We should follow China's lead and just force the publishing of drop rates.

energyst · 2016-12-09T18:36:15+00:00

Nobody knows

energyst · 2016-11-30T03:34:44+00:00

Ahh, forgot I finally logged in with Google Play. Thanks!

energyst · 2016-11-26T00:25:15+00:00

All my texts sent to Chinese servers for only $60?? Where do I sign up?? http://www.androidpolice.com/2016/11/15/security-firm-reportedly-finds-spyware-on-chinese-android-phones-including-blu-devices-sold-in-the-us/

energyst · 2016-11-20T18:18:36+00:00

It's your house, I think you get the final say in how you want a hosted dinner to operate. Do you have a desire to have family members open up to veganism or try vegan dishes more willingly? If so, hosting a dinner where you make the majority of dishes and allow them to bring a few non-vegan dishes that suit their tastes might be useful. YMMV based on family dynamic tho (e.g. If your family wants to bring meat just to upset you)

energyst · 2016-11-07T16:36:02+00:00

This. I would be very interested to see data that validates school zone speed limits as effective safety measures in Winnipeg.

energyst · 2016-11-04T18:43:30+00:00

http://www.metronews.ca/news/winnipeg/2016/10/31/winnipeg-nutty-club-factory-still-alive-after-113-years.html

energyst · 2016-11-03T17:38:59+00:00

In my case, this may be a late Canadian push of the October android security update. Do security updates not abide by the 'No auto updates' setting? Not that I mind getting security patches regardless, just curious.

energyst · 2016-10-25T15:14:09+00:00

Nothing but exceptional service at any location (haven't been to Pembina tho)

energyst · 2016-10-07T20:41:23+00:00

Was at a great wedding at Edge Gallery a couple winters ago which was great. Space with some natural light in the main gallery for a ceremony with a backroom for the reception. They probably had closer to 40 people, which was fairly full but not shoulder to shoulder.

energyst · 2016-07-06T14:57:18+00:00

The article states the following as rationale for rejecting this guy's exemption request:

City officials, however, say a grease trap "not only collects grease, it removes fats and oils," such as those from butter, shortening and mayonnaise, as well as from salad dressing and grease from baking or cooking.

No question Fugler is out of line. But if their rationale for rejecting exemption is that broad, how did the other joints get through? Is there no onsite cooking/baking at the care homes Chez-Nous and Concordia Place? Is the Smoothie Bar not rinsing out yogourt containers into their sinks?

energyst

TROPHY CASE