Comments on: The Big Picture of Indoor Air Quality – Excerpt https://www.energyvanguard.com/blog/the-big-picture-of-indoor-air-quality-excerpt/ Building science knowledge, HVAC design, & fun Tue, 26 Apr 2022 16:59:07 +0000 hourly 1 https://wordpress.org/?v=6.6.2 By: Kelly Adams https://www.energyvanguard.com/blog/the-big-picture-of-indoor-air-quality-excerpt/#comment-26219 Tue, 26 Apr 2022 16:59:07 +0000 https://www.energyvanguard.com/?p=7378#comment-26219 In reply to Allison Bailes.

Thanks, I found it with that link – I think the first time I must have somehow gotten to an old website that showed everything out-of-stock.
Both our moms have gas furnaces and water heaters in old houses so I am going to see what the monitor says.

]]> By: David Butler https://www.energyvanguard.com/blog/the-big-picture-of-indoor-air-quality-excerpt/#comment-26196 Tue, 26 Apr 2022 04:34:27 +0000 https://www.energyvanguard.com/?p=7378#comment-26196 In reply to Charles Leahy.

Charles, where are you getting this minimum 4ACH from, and are you referring to internal air changes (i.e., recirculated airflow)? Your last sentence “V” implies you’re referring to ventilation air changes, in which case, 4ACH is nonsense.

]]> By: Allison Bailes https://www.energyvanguard.com/blog/the-big-picture-of-indoor-air-quality-excerpt/#comment-26010 Thu, 21 Apr 2022 22:32:34 +0000 https://www.energyvanguard.com/?p=7378#comment-26010 In reply to Kelly Adams.

Kelly: Yes, see this article:

https://www.energyvanguard.com/blog/Don-t-Compromise-Get-a-Low-Level-Carbon-Monoxide-Monitor

]]> By: Kelly Adams https://www.energyvanguard.com/blog/the-big-picture-of-indoor-air-quality-excerpt/#comment-26009 Thu, 21 Apr 2022 22:18:34 +0000 https://www.energyvanguard.com/?p=7378#comment-26009 I am having no luck finding the CO detectors you recommend. Any other suggestions?
Thanks, Kelly

]]> By: Gary James https://www.energyvanguard.com/blog/the-big-picture-of-indoor-air-quality-excerpt/#comment-26005 Thu, 21 Apr 2022 21:14:20 +0000 https://www.energyvanguard.com/?p=7378#comment-26005 Considering this is pre-COVID too just shows you how much still needs to be done. At least the pandemic made people a little more aware of the air inside and out.

]]> By: Charles Leahy https://www.energyvanguard.com/blog/the-big-picture-of-indoor-air-quality-excerpt/#comment-25996 Thu, 21 Apr 2022 17:22:46 +0000 https://www.energyvanguard.com/?p=7378#comment-25996 WONDERFUL quote! I’ll have to remember that. So here’s a question for you. If we help clients build super-energy efficient low-load homes, and we don’t need much heating & cooling BTUs, BUT we need a minimum of 4 ACH – preferably directed & cleaned through MIRV filters – how do you do that? If HVAC tonnage offers around 400 CFM per ton, you need lots of tonnage to achieve 4ACH, yet by code I’m told you are not allowed to oversize a unit by more than 15%. So for a 4,400 sqft home we may only need 2 tons for H&AC, but maybe 6-8 tons for V.

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